From eoas-seminar at lists.fsu.edu Tue Oct 1 10:14:39 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 1 Oct 2024 10:14:39 -0400 Subject: [Eoas-seminar] Carothers Lecture October 10 In-Reply-To: <2CB2DFF7-8974-4D3E-8E98-F6FC9A5057A0@fsu.edu> References: <2CB2DFF7-8974-4D3E-8E98-F6FC9A5057A0@fsu.edu> Message-ID: The next Carothers Lecture Series seminar will take place on Thursday, October 10 -- -- a special Crossover Event with FSU Discovery Days!! -- when Jorge Piekarewicz, Professor of Physics, College of Arts and Sciences, will speak to us on the "Beauty of Neutron Stars!" The flyer for Jorge's lecture is attached to this email, and the direct link to the sign-up page for the luncheon is online here: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fforms.office.com%2Fr%2F3FqXuvSMjK&data=05%7C02%7Ceoas-seminar%40lists.fsu.edu%7Ca821068af29a4862f3a508dce223652a%7Ca36450ebdb0642a78d1b026719f701e3%7C0%7C0%7C638633888946350523%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=5XdOd5tH%2BjdqLBDXPtqRtE5fzy2sz92gT28UL59S9Zc%3D&reserved=0 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: piekarewicz_flyer.pdf Type: application/pdf Size: 8384827 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Tue Oct 1 10:27:31 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 1 Oct 2024 14:27:31 +0000 Subject: [Eoas-seminar] MET seminar - TODAY 3pm - Dr. David Peterson Message-ID: Our next Meteorology seminar will be TODAY at 3pm. Please join us for a talk by Dr. David Peterson (NRL) on the topic of ?Pyrocumulonimbus and its Role in the Climate System: What is known and unknown?? DATE: Tuesday Oct 1 TIME: 3 PM LOCATION: EOAS 1044 SPEAKER: Dr. David A. Peterson AFFILIATION: Naval Research Laboratory, Monterrey TITLE: Pyrocumulonimbus and its Role in the Climate System: What is known and unknown? ABSTRACT: Pyrocumulonimbus (pyroCb) are fire-induced and smoke-infused thunderstorms that serve as the primary pathway for smoke to reach the upper troposphere and lower stratosphere (UTLS).The magnitude of smoke plumes observed in the UTLS has increased significantly in recent years, rivaling or exceeding the impact from all volcanic eruptions observed over the last decade, with the potential for significant climate feedbacks on seasonal and hemispheric scales. The Black Summer fire season of 2019-2020 in southeastern Australia contributed to an unprecedented pyroCb ?super outbreak? that took place over 51 non-consecutive hours. More than half of the 38 observed pyroCb updraft pulses injected smoke particles directly into the stratosphere, producing two of the three largest smoke plumes observed at such altitudes to date. Over the course of three months, these plumes encircled a large swath of the Southern Hemisphere while continuing to rise, in a manner consistent with existing nuclear winter theory. Fewer than three years earlier, a large pyroCb outbreak in Canada produced a persistent smoke plume that encircled a portion of the Northern Hemisphere. We summarize what the community has learned from these extreme events and identify science questions that remain unanswered. A recently-developed pyroCb inventory facilitates the first analysis of regional, seasonal, monthly, and inter-annual variability worldwide, including during the extreme 2023 fire season in Canada. Unique in-situ and remotely-sensed measurements of pyroCb activity observed during the 2019 FIREX-AQ field experiment identify the fire characteristics, cloud microphysical properties, and smoke plume chemistry associated with this extreme fire-weather phenomenon. Information on the recently selected INjected Smoke and PYRocumulonimbus Experiment (INSPYRE) will also be provided. HOST: Dr. Christopher Holmes Christopher D. Holmes, PhD Associate Professor of Meteorology and Environmental Science Earth, Ocean and Atmospheric Science Florida State University EOAS Room 6091 phone: 850-645-0972 https://acgc.eoas.fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Tue Oct 1 11:28:04 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 1 Oct 2024 15:28:04 +0000 Subject: [Eoas-seminar] COAPS Short Seminar Series Message-ID: COAPS Short Seminar Series 11:00 AM October 7th Attend F2F (in 255 Research A) or Virtually (via Zoom) https://fsu.zoom.us/j/92268262553 Meeting ID: 922 6826 2553 Talks are normally 12 minutes long with an additional 8 minutes for questions. AMOC?Gulf Stream relationship on sub-annual timescales in an eddying North Atlantic ensemble By Givo Alsepan Description: Observational studies have revealed significant Gulf Stream (GS) variability on monthly or longer timescales that affects climate over the Northern Hemisphere. Recently, a high degree of variability in the Atlantic Meridional Overturning Circulation (AMOC) has also been observed on these monthly timescales, suggesting a possible connection between the GS and AMOC. However, their exact relationship in modeling studies remains poorly understood partly due to the lack of eddy-scale resolution. Here the patterns of covariability between monthly sea surface temperature (SST) and AMOC streamfunction anomalies in the North Atlantic sector are investigated as a function of time lag using an ensemble of eddy-resolving North Atlantic model simulations. Our results reveal that statistically significant covariances are found when AMOC leads SST by several months. A large-scale tripolar SST pattern in spring is associated with a broad positive AMOC signal over most of the domain during the preceding early winter, which has been previously associated with the North Atlantic Oscillation imprints. Interestingly, over the GS a significant variability of SST and its meridional gradient in winter is associated with the dominant mode of AMOC variability during the preceding early fall. The spatial pattern of AMOC in this early fall is different compared to that in early winter, where the former exhibits a tripole mode in the North Atlantic: a pattern with positive AMOC streamfunction anomaly near the equator and north of 35?N and negative anomaly near the subtropic that extends from the surface to the deep ocean of ~3?4 km. The significant lag relations between AMOC and GS SST may shed light on the potential AMOC influence to the mid-latitude atmosphere via the GS on sub-annual timescales. Height Adjustment of IWRAP Wind Speed: Analyzing Boundary Layer Assumptions and Near-Surface Vertical Wind Profiles in Atlantic Tropical Cyclones By Maggie Zoerner Description: This project assesses the height adjustment of IWRAP (Imaging Wind and Rain Airborne Profiler) wind speed measurements from various altitudes in Atlantic tropical cyclones, considering different boundary layer assumptions. A secondary objective is to investigate the patterns of near-surface vertical wind profiles and associated features to enhance understanding of the dynamics in the boundary layer. Science Goals Related to Spray Modification of Hurricane Winds and Turbulent Fluxes By Amelia Bryan This project builds on the work of a previous masters student, Danny Wallace who used data collected from dropsondes in tropical cyclones to conduct a log-profile analysis for wind speed, potential temperature, and humidity in order to estimate surface fluxes of momentum, sensible heat, and latent heat. This project works toward improving these estimates by improving the estimations of roughness length. NOTE: Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend. ________________________________________________________________________________ Microsoft Teams Need help? Join the meeting now Meeting ID: 230 638 885 247 Passcode: o3ptmu ________________________________ Dial in by phone +1 850-702-3768,,289952385# United States, Tallahassee Find a local number Phone conference ID: 289 952 385# For organizers: Meeting options | Reset dial-in PIN Org help ________________________________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 10064 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Thu Oct 3 17:41:00 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 3 Oct 2024 21:41:00 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Zecheng Zhang Message-ID: "Solving PDEs: From Neural Single Operator to Neural Multi-Operator Foundation Models" Zecheng Zhang Assistant Professor, Department of Mathematics, Florida State University Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend. NOTE: In-person attendance is requested. Zoom access is intended for external (non-departmental) participants only. https://fsu.zoom.us/j/94273595552 Meeting # 942 7359 5552 ? Colloquium recordings will be made available here, https://www.sc.fsu.edu/colloquium Wednesday, Oct 9th, 2024, Schedule: * 3:00 to 3:30 PM Eastern Time (US and Canada) ? Nespresso & Teatime - 417 DSL Commons * 3:30 to 4:30 PM Eastern Time (US and Canada) ? Colloquium - 499 DSL Seminar Room Abstract: In this talk, I will explore the machine learning approach to solving complex physical systems modeled by partial differential equations (PDEs). Since many PDE-solving problems can be framed as operator approximations, we will focus on operator learning. The discussion will begin by extending the universal approximation theorem to make it invariant to discretization, followed by an examination of distributed algorithms that can further improve the network flexibility to handle complex multiscale problems. To improve the network's ability to extrapolate, we will delve into multi-operator learning, particularly in designing foundation models that can address previously unseen problems. To mathematically quantify of these approximations, the talk will conclude with a discussion of neural scaling laws, focusing on the convergence of operator learning networks and the analysis of generalization error. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1819-colloquium-with-zecheng-zhang-2024-10-09 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4813 bytes Desc: not available URL: -------------- next part -------------- _______________________________________________ SC-Seminar-announce mailing list SC-Seminar-announce at lists.fsu.edu https://lists.fsu.edu/mailman/listinfo/sc-seminar-announce From eoas-seminar at lists.fsu.edu Fri Oct 4 09:56:58 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 4 Oct 2024 13:56:58 +0000 Subject: [Eoas-seminar] REMINDER: EOAS Colloquium TODAY, 3:00PM - Sierra Landreth, Alexis Slentz, Michael Core & Virginia Biede In-Reply-To: References: Message-ID: Dear all, Please join us TODAY for the inaugural graduate student EOAS Colloquium, designed to showcase the interesting and broad research being conducting by students in our department! There will be four conference style talks (12 minutes + 3 minutes for Q&A): Sierra Landreth: Comparing Benthic Megafaunal Communities of the Cobalt-Rich Manganese Seamounts of the Mid-Pacific Mountains, Necker Ridge, and Hawaiian Ridge. Alexis Slentz: Molecular-level composition and bioavailability of terrigenous dissolved organic matter in the Yukon River delta (Alaska, USA). Michael Core: Empowering Citizen Scientists: Participatory GIS Applications for Water Quality Monitoring in the Wakulla Basin. Virginia Biede: Cold water coral and sponge patch distribution and abundance hotspots on seamounts of the Hawaiian-Emperor Seamount Chain Location and Time: EOAS 1050, 3:00PM. Abstracts Below. Please take the time to come along and support our graduate students! Cheers, Rhys Abstracts Sierra Landreth: Deep-sea mining on Pacific seamounts is an imminent threat to benthic megafaunal communities. Seamounts of the central and western Pacific (CWP) are prospective targets for mining activities due to cobalt-rich manganese crusts. While largely unexplored and undercharacterized, these seamounts are considered essential habitats to a wide diversity of deep-sea benthic megafauna. The Mid-Pacific Mountains (MPM) is an area that is poorly sampled outside the U.S. EEZ but may be targeted because of cobalt-rich crusts. Between the MPM and the Northwestern Hawaiian Islands (NWHI) is Necker Ridge, a feature that has been hypothesized to be a key stepping-stone in faunal dispersal between the two regions. This project aims to test this hypothesis by comparing the species composition of CWP seamount fauna between the three regions at a consistent depth of 1,500m while also characterizing the benthic habitat and communities of potential targeted areas for deep-sea mining both inside and outside the US EEZ. The ROV SuBastian was used to collect three replicate 500m long video transects, taken at a depth of 1,500m at each of the 7 sites. Video transects were converted to screen grabs collected every 10 seconds. Images were annotated for morphology and taxonomy of benthic megafauna using the BioImage Indexing Graphical Labeling and Exploration (BIIGLE) website. Organisms were labeled with the Standardised Marine Taxon Reference Image Database (SMarTaR-ID) morphology and taxonomy label trees. Species composition, abundance, and diversity of the benthic community were determined at each study site. Preliminary results indicate octocorals were the dominant taxa for a majority of MPM and NWHI sites. In contrast, sites within Necker Ridge had a higher abundance of crinoids and tunicates. The results of this study are essential to the conservation and management of vital deep-sea habitats since a majority of sites in this project are potential targets for deep-sea mining activities. Alexis Slentz: The Arctic environment is among the most vulnerable to global climate change; surface air temperatures in high-latitude regions have increased at more than double the rate of other parts of the globe since the year 2000. The rapid warming, increased nutrient liberation, and changing precipitation patterns occurring in the Arctic have led and will continue to lead to major alterations to the landscape throughout the region, such as encroachment of trees and shrubs on the tundra, or ?shrubification,? decreased Arctic cryosphere extent (e.g., melting sea ice and glaciers, permafrost thaw), and increased frequency and severity of wildfires. Each of these disturbances may drastically impact carbon cycling within this region; principally, changes to the terrestrial landscape will influence the quantity and quality of organic matter mobilized from the surface and into Arctic waterways, ultimately impacting carbon turnover in rivers and downstream marine environments. To investigate the influence of these threats to the Arctic environment on the terrestrial dissolved organic matter (DOM) exported into the Yukon River (Alaska, USA), we examined the concentration, composition, and bioavailability of DOM associated with leachates of representative model source endmembers. These soil, vegetation, and char leachates were subjected to biodegradation incubations to determine bioavailability of DOM associated with a particular landscape alteration, and ultrahigh-resolution mass spectrometry was used to determine compositional controls on biolability. FT-ICR MS data revealed that bioavailability was primarily driven by lower relative abundances of condensed aromatic and phenolic compounds and higher relative abundances of aliphatic compounds. Model source endmembers exhibiting higher biolability include permafrost, organic soil, and non-woody vegetation species, while mineral soils, woody vegetation species and char samples were less bioavailable in comparison. These results indicate that while permafrost thaw will contribute a high-energy subsidy to the DOM pool in Arctic aquatic systems that will be rapidly utilized by riverine microbes, wildfire and shrubification may alter the quality of DOM leached from the landscape such that overall biolability of terrestrial DOM will decrease, subsequently causing this DOM to persist into coastal and marine environments. Michael Core: The Wakulla Basin, encompassing vital water bodies like Lake Munson, Munson Slough, Ames Sink, and Wakulla Springs, is facing water quality challenges due to urbanization, nutrient loading, and stormwater runoff. Its vulnerability is heightened by a porous karst aquifer system that allows contaminants from human activities?including septic tanks and land development?to rapidly infiltrate and spread, jeopardizing ecological integrity and freshwater resources. This presentation introduces Participatory Geographic Information System (PGIS) applications to empower citizen scientists to monitor and advocate for improved water quality within the Wakulla Basin. Utilizing platforms like ArcGIS StoryMaps and Survey123, these applications facilitate community engagement by enabling residents to collect, analyze, and share critical environmental data, fostering stronger connections between the community, scientists, and policymakers. The methods and impacts of implementing PGIS, such as highlighting increased community awareness, documenting local knowledge, and enhancing decision-making processes through case studies involving partnerships with organizations such as the Tallahassee Sewage and Wakulla Basin Advocacy Group and Friends of Wakulla Springs State Park, are discussed. Looking ahead, the aim is to expand the reach of these PGIS applications to other communities and water bodies. Virginia Biede: Knowledge gaps in the spatial distribution of habitat formers in the deep-sea leave communities at risk of anthropogenic disturbance such as bottom-contact fishing. Understanding how deep-sea communities are distributed on seamounts can inform area-based management necessary to protect biodiverse communities. To gain a better understanding of patch sizes on North Pacific seamounts, an existing dataset derived from surveys with the AUV Sentry was reanalyzed. The Sentry data included annotations from surveys of seafloor communities between 200m?800m depth on seamounts of the Hawaiian-Emperor Seamount Chain annotated for the taxonomic groups of Coral, Sponge, Crinoid, and Brisingid. Density Based Spatial Clustering of Applications with Noise and local Getis-Ord were used to find patches and hotspots of abundance for individual taxonomic groups and for all fauna together. Patch sizes of Coral, Crinoid, Brisingid, and All Faunal groups varied across 100m depth bins (p<0.01) while Sponge patch size varied both by treatment (p = 0.009) and the interaction of depth and treatment (p = 0.023). The area of Sponge hotspots varied across the interaction of depth and treatment, but not depth or treatment alone. No significant pattern was observed for Coral, Crinoid, Brisingid, or All Fauna hotspots. Patch sizes ranged from 5m to 2000 m in length, and hotspot area from 500 m2 to over 71,000 m2. This study highlights the importance of scale as well as the usefulness of spatial analyses as a tool for area-based management. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Oct 4 17:10:34 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 4 Oct 2024 21:10:34 +0000 Subject: [Eoas-seminar] MET seminar - Tuesday Oct 8 - Dr. Isabel McCoy Message-ID: Our next Meteorology seminar will be on Tuesday Oct 8 at 3pm. Please join us for a talk by Dr. Isabel McCoy (NOAA Chemical Sciences Laboratory) on the topic of ?Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback? If you would like to schedule an individual meeting with the speaker, please contact the host below with the times of your availability on the day of the seminar. These meetings will be online as Dr. McCoy is joining us remotely for the seminar. DATE: Tuesday Oct 8 TIME: 3 PM LOCATION: EOAS 1044 SPEAKER: Dr. Isabel McCoy AFFILIATION: NOAA Chemical Sciences Laboratory TITLE: Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback ABSTRACT: Changes in boundary layer clouds in response to global warming as well as their interactions with aerosols are two key sources of uncertainty in future climate projections and climate sensitivity estimation. In this observational study, we examine how the organization of boundary layer clouds into mesoscale morphology patterns (O~100 km) may modulate both cloud feedback and aerosol forcing. We utilize identifications from a supervised neural network algorithm that categorized near-global satellite retrievals into three mesoscale cellular convective (MCC) cloud morphology patterns. At constant cloud fraction, brightness differences between morphology patterns depend in part on the prevalence of optically thin cloud features. Environmentally driven transitions from closed MCC to other morphology patterns, which are typically accompanied by more optically thin cloud features associated with increased precipitation depletion, are used as a framework to quantify the morphology contribution to the optical depth component of the shortwave cloud feedback. Including a measure of anthropogenic aerosol in addition to environmental controls in this regime framework provides insights into the sensitivity of aerosol forcing to cloud morphology shifts under past, current, and future climates. Bio: Isabel McCoy is a research scientist at CIRES, University of Colorado Boulder and NOAA Chemical Sciences Laboratory. She has a PhD in Atmospheric Sciences from the University of Washington and was a NOAA Climate and Global Change Postdoctoral Fellow from 2020-2022. Her work utilizes in situ and satellite observations as well as large-eddy simulations and global climate models to study how clouds influence the climate through aerosol-cloud-precipitation interactions and feedback. In her recent work, Isabel has focused on understanding how mesoscale organization of boundary layer clouds influences the climate system and how socioeconomic choices will impact our future climate through modifying regional and global aerosol concentrations in addition to greenhouse gases. HOST: Michael Diamond, msd22d at fsu.edu Christopher D. Holmes, PhD Associate Professor of Meteorology and Environmental Science Earth, Ocean and Atmospheric Science Florida State University EOAS Room 6091 phone: 850-645-0972 https://acgc.eoas.fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Tue Oct 8 07:00:00 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 8 Oct 2024 11:00:00 +0000 Subject: [Eoas-seminar] MET seminar - TODAY 3pm - Dr. Isabel McCoy In-Reply-To: References: Message-ID: Our next Meteorology seminar will be TODAY at 3pm. Please join us for a talk by Dr. Isabel McCoy (NOAA Chemical Sciences Laboratory) on the topic of ?Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback? DATE: Tuesday Oct 8 TIME: 3 PM LOCATION: EOAS 1044 SPEAKER: Dr. Isabel McCoy AFFILIATION: NOAA Chemical Sciences Laboratory TITLE: Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback ABSTRACT: Changes in boundary layer clouds in response to global warming as well as their interactions with aerosols are two key sources of uncertainty in future climate projections and climate sensitivity estimation. In this observational study, we examine how the organization of boundary layer clouds into mesoscale morphology patterns (O~100 km) may modulate both cloud feedback and aerosol forcing. We utilize identifications from a supervised neural network algorithm that categorized near-global satellite retrievals into three mesoscale cellular convective (MCC) cloud morphology patterns. At constant cloud fraction, brightness differences between morphology patterns depend in part on the prevalence of optically thin cloud features. Environmentally driven transitions from closed MCC to other morphology patterns, which are typically accompanied by more optically thin cloud features associated with increased precipitation depletion, are used as a framework to quantify the morphology contribution to the optical depth component of the shortwave cloud feedback. Including a measure of anthropogenic aerosol in addition to environmental controls in this regime framework provides insights into the sensitivity of aerosol forcing to cloud morphology shifts under past, current, and future climates. Bio: Isabel McCoy is a research scientist at CIRES, University of Colorado Boulder and NOAA Chemical Sciences Laboratory. She has a PhD in Atmospheric Sciences from the University of Washington and was a NOAA Climate and Global Change Postdoctoral Fellow from 2020-2022. Her work utilizes in situ and satellite observations as well as large-eddy simulations and global climate models to study how clouds influence the climate through aerosol-cloud-precipitation interactions and feedback. In her recent work, Isabel has focused on understanding how mesoscale organization of boundary layer clouds influences the climate system and how socioeconomic choices will impact our future climate through modifying regional and global aerosol concentrations in addition to greenhouse gases. HOST: Michael Diamond, msd22d at fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Tue Oct 8 14:00:32 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 8 Oct 2024 18:00:32 +0000 Subject: [Eoas-seminar] MET seminar - TODAY 3pm - Dr. Isabel McCoy In-Reply-To: References: Message-ID: Hi all, Hope to see you in an hour for Isabel's seminar! I'll have snacks available starting around 2:50 PM. Cheers, Michael -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] ________________________________ From: Eoas-seminar on behalf of eoas-seminar--- via Eoas-seminar Sent: Tuesday, October 8, 2024 7:00 AM To: eoas-seminar at lists.fsu.edu Subject: Re: [Eoas-seminar] MET seminar - TODAY 3pm - Dr. Isabel McCoy Our next Meteorology seminar will be TODAY at 3pm. Please join us for a talk by Dr. Isabel McCoy (NOAA Chemical Sciences Laboratory) on the topic of ?Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback? DATE: Tuesday Oct 8 TIME: 3 PM LOCATION: EOAS 1044 SPEAKER: Dr. Isabel McCoy AFFILIATION: NOAA Chemical Sciences Laboratory TITLE: Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback ABSTRACT: Changes in boundary layer clouds in response to global warming as well as their interactions with aerosols are two key sources of uncertainty in future climate projections and climate sensitivity estimation. In this observational study, we examine how the organization of boundary layer clouds into mesoscale morphology patterns (O~100 km) may modulate both cloud feedback and aerosol forcing. We utilize identifications from a supervised neural network algorithm that categorized near-global satellite retrievals into three mesoscale cellular convective (MCC) cloud morphology patterns. At constant cloud fraction, brightness differences between morphology patterns depend in part on the prevalence of optically thin cloud features. Environmentally driven transitions from closed MCC to other morphology patterns, which are typically accompanied by more optically thin cloud features associated with increased precipitation depletion, are used as a framework to quantify the morphology contribution to the optical depth component of the shortwave cloud feedback. Including a measure of anthropogenic aerosol in addition to environmental controls in this regime framework provides insights into the sensitivity of aerosol forcing to cloud morphology shifts under past, current, and future climates. Bio: Isabel McCoy is a research scientist at CIRES, University of Colorado Boulder and NOAA Chemical Sciences Laboratory. She has a PhD in Atmospheric Sciences from the University of Washington and was a NOAA Climate and Global Change Postdoctoral Fellow from 2020-2022. Her work utilizes in situ and satellite observations as well as large-eddy simulations and global climate models to study how clouds influence the climate through aerosol-cloud-precipitation interactions and feedback. In her recent work, Isabel has focused on understanding how mesoscale organization of boundary layer clouds influences the climate system and how socioeconomic choices will impact our future climate through modifying regional and global aerosol concentrations in addition to greenhouse gases. HOST: Michael Diamond, msd22d at fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 14 11:27:06 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 14 Oct 2024 15:27:06 +0000 Subject: [Eoas-seminar] EOAS Colloquium - Friday Oct 18th - Caroline Ummenhofer Message-ID: Dear all, Please join us this Friday for the EOAS Colloquium, where our invited guest speaker is Caroline Ummenhofer, from Woods Hole Oceanographic Institution. Caroline will give a talk on "Impacts of multi-decadal Pacific variability on the Indian Ocean", please see below for the abstract. Location and Time: Friday October 18th, EOAS 1050, 3:00PM. Caroline will be visiting EOAS on Thursday and Friday - please let me know if you would like to meet with her. Cheers, Rhys Abstract The Indo-Pacific exhibits strong multi-decadal variability, with far-reaching implications for hydroclimate in surrounding regions, especially in Indian Ocean rim countries with societies particularly vulnerable to anthropogenic climate change. It is therefore of interest to better understand how multi-decadal variability across the Indo-Pacific affects Indian Ocean characteristics, including its leading mode of variability, the Indian Ocean Dipole. Mechanisms will be discussed how multi-decadal Pacific variability is transmitted to the Indian Ocean through oceanic and atmospheric pathways, including via the Indonesian Throughflow and the Walker circulation, using a suite of ocean and climate model simulations. In addition, significant changes in heat and freshwater transport have been recorded in recent decades in the Indian Ocean and the Maritime Continent region. Implications of these observed low-frequency changes for interannual to decadal variability in the Indian Ocean and extreme events across the region will be discussed. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 14 17:55:54 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 14 Oct 2024 21:55:54 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Martin Schmidt Message-ID: "Morphological ECG Analysis ? Revealing Valuable Features for Medical Diagnosis" Martin Schmidt Institute of Biomedical Engineering, TUD Dresden University of Technology Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend. NOTE: In-person attendance is requested. Zoom access is intended for external (non-departmental) participants only. https://fsu.zoom.us/j/94273595552 Meeting # 942 7359 5552 ? Colloquium recordings will be made available here, https://www.sc.fsu.edu/colloquium Wednesday, Oct 16, 2024, Schedule: * 3:00 to 3:30 PM Eastern Time (US and Canada) ? Nespresso & Teatime - 417 DSL Commons * 3:30 to 4:30 PM Eastern Time (US and Canada) ? Colloquium - 499 DSL Seminar Room Abstract: Cardiovascular disease (CVD) is the most common cause of death worldwide. Changes in biosignals can provide early indications of CVD. Current research shows that the analysis of QT variability (QTV) in the electrocardiogram (ECG) can contribute to diagnosis and risk stratification of various CVDs. Today's methods for QTV analysis can reflect complex morphological changes only to a limited degree. However, the analysis of these changes opens new approaches to the diagnosis and therapy of CVD. To overcome current limitations and to provide the basis for a clinical application, a novel method for analyzing the morphology of biosignals has been developed. The method is based on an iterative two-dimensional deformation of a one-dimensional template (2DSW, Two-Dimensional Signal Warping). The adaptation of the template is made with a two-dimensional warping grid to analyze complex changes, especially the QT interval morphology. Focusing on robust detection of subtle quasiperiodic changes as well as a generalized implementation, the method is feasible in various applications. The evaluation of 2DSW showed a higher robustness for common artefacts compared to current methods. At the same time, 2DSW shows an improved sensitivity to subtle beat-to-beat changes in different simulated and clinical data sets. Amongst others, we could demonstrate for the first time a significant influence of sleep stages on QTV. Based on 2DSW, new QTV parameters have been developed that have improved risk stratification in various clinical trials. For example, in assessing acute mental stress that is associated with higher CVD risk in the long-term, the parameters developed were shown to provide substantial additional value. Furthermore, insights were gained into the characterisation of temporal changes in sympathovagal imbalance prior to the occurrence of atrial fibrillation, which may prove useful in predicting atrial fibrillation in clinical practice. The improvements in the detection of complex morphological changes in ECG by 2DSW result in more accurate QTV analyses and provide the possibility to extend existing clinical monitoring procedures to QTV analysis, thus contributing to better diagnosis of CVD and potential therapeutic approaches. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1820-colloquium-with-martin-schmidt-2024-10-16 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 6214 bytes Desc: not available URL: -------------- next part -------------- _______________________________________________ SC-Seminar-announce mailing list SC-Seminar-announce at lists.fsu.edu https://lists.fsu.edu/mailman/listinfo/sc-seminar-announce From eoas-seminar at lists.fsu.edu Tue Oct 15 14:38:29 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 15 Oct 2024 18:38:29 +0000 Subject: [Eoas-seminar] [EOAS-FAC] Upcoming Thesis and Dissertation Defenses In-Reply-To: <3e6c3f53-3caa-43a2-be00-5168df62f054@fsu.edu> References: <3e6c3f53-3caa-43a2-be00-5168df62f054@fsu.edu> Message-ID: GLY Ph.D. Dissertation Defense: Aaron W Ashley Title: PHYSICAL PROPERTIES OF SILICATE MELTS AT HIGH PRESSURE-TEMPERATURE CONDITIONS RELEVANT FOR THE INTERIOR OF EARTH Date: October, 18th, Time: 12-2 PM Venue: EOA 5067/ https://fsu.zoom.us/j/91869621318 Mainak Mookherjee Professor Florida State University Department of Earth, Ocean, and Atmospheric Science mmookherjee at fsu.edu o: (850) 644-1536 https://myweb.fsu.edu/mmookherjee/ eoas.fsu.edu linktr.ee/fsueoas ? -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: clip_image001.png Type: image/png Size: 19281 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 1397 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Wed Oct 16 15:53:36 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 16 Oct 2024 19:53:36 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Seminar with Ben Adcock Message-ID: "Too good to believe? Two stories on hallucinations and instabilities in AI" Ben Adcock Department of Mathematics, Simon Fraser University Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend. NOTE: In-person attendance is requested. Zoom access is intended for external (non-departmental) participants only. https://fsu.zoom.us/j/94273595552 Meeting # 942 7359 5552 ? Colloquium recordings will be made available here, https://www.sc.fsu.edu/colloquium Friday, Oct 18, 2024, Schedule: * 12:00 to 1:00 PM Eastern Time (US and Canada) ? Special Seminar - 499 DSL Seminar Room * 1:00 to 1:30 PM Eastern Time (US and Canada) ? Nespresso & Teatime - 417 DSL Commons Abstract: Hallucinations are a big problem for modern AI systems. Anyone who has used ChatGPT, for example, will have witnessed it confidently provide false information or flawed reasoning. Beyond chatbots, hallucinations are known to arise in many other applications of AI, such as AI-inspired methods in computational science and engineering. Such methods may also suffer from severe instability, yielding dramatic failures when the inputs are slightly perturbed. In general, although these phenomena have been widely observed, there is little theory that strives to explain why and how they arise. In this talk, I will present two stories that theoretically explore these issues in two different settings. First, I will describe their appearance in inverse problems and imaging, where they are closely related to the ill-posedness or ill-conditioning of the forward operator. Second, I will consider the broad setting of Artificial General Intelligence, where an AI strives to mimic human intelligence. Here I will present the ?Consistent Reasoning Paradox?, which explains how any attempt by an AI to reason consistently (like humans do) necessarily leads to hallucinations. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1821-special-seminar-with-ben-adcock-2024-10-18 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4618 bytes Desc: not available URL: -------------- next part -------------- _______________________________________________ SC-Seminar-announce mailing list SC-Seminar-announce at lists.fsu.edu https://lists.fsu.edu/mailman/listinfo/sc-seminar-announce From eoas-seminar at lists.fsu.edu Fri Oct 18 10:03:28 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 18 Oct 2024 14:03:28 +0000 Subject: [Eoas-seminar] EOAS Colloquium TODAY - UPDATED TITLE In-Reply-To: References: Message-ID: Hi everyone, Just a reminder of the EOAS Colloquium today - 3pm in 1050 - Speaker: Caroline Ummenhofer from the Department of Physical Oceanography at Woods Hole Oceanographic Institution. The title has been slightly updated as follows: Impacts of multi-decadal Pacific variability on the Indian Ocean / A Breeze from the past: Mining climate clues from whaling logbooks 1. The Indo-Pacific exhibits strong multi-decadal variability, with far-reaching implications for hydroclimate in surrounding regions, especially in Indian Ocean rim countries with societies particularly vulnerable to anthropogenic climate change. It is therefore of interest to better understand how multi-decadal variability across the Indo-Pacific affects Indian Ocean characteristics, including its leading mode of variability, the Indian Ocean Dipole. Mechanisms will be discussed how multi-decadal Pacific variability is transmitted to the Indian Ocean through oceanic and atmospheric pathways, including via the Indonesian Throughflow and the Walker circulation, using a suite of ocean and climate model simulations. Implications of the low-frequency changes for interannual variability in the Indian Ocean and extreme events across the region, also in a paleoclimate context, will be discussed. 2. Maritime weather data contained in ship logbooks are used to assess historical changes in global wind patterns. We focus on unexploited caches of archival documentation, namely U.S. whaling logbooks of voyages spanning the period 1820 to 1890 from New England archives. The logbooks, often covering multi-year voyages around the globe, contain systematic weather observations (e.g., wind strength/direction, sea state, precipitation) at daily to sub-daily temporal resolution. The qualitative, descriptive recordings of wind strength and direction by the whalers are quantified and compared with reanalysis products where applicable. Following extensive quality control, we find overall good agreement in wind strength and direction for the whaling logbook wind records with reanalysis products. There are indications that long-term changes in winds (e.g., in the Southern Ocean) and variations in wind fields associated with modes of variability, such as the North Atlantic Oscillation, are also captured by the whaling ship records. Our results demonstrate that the historical records can provide a long-term context for changing maritime wind patterns in remote ocean regions lacking instrumental data during the 19th century. Cheers, Rhys --------------------------------- Associate Professor, EOAS ________________________________ From: Rhys Parfitt Sent: Monday, October 14, 2024 11:27 AM To: eoas-seminar at lists.fsu.edu Subject: EOAS Colloquium - Friday Oct 18th - Caroline Ummenhofer Dear all, Please join us this Friday for the EOAS Colloquium, where our invited guest speaker is Caroline Ummenhofer, from Woods Hole Oceanographic Institution. Caroline will give a talk on "Impacts of multi-decadal Pacific variability on the Indian Ocean", please see below for the abstract. Location and Time: Friday October 18th, EOAS 1050, 3:00PM. Caroline will be visiting EOAS on Thursday and Friday - please let me know if you would like to meet with her. Cheers, Rhys Abstract The Indo-Pacific exhibits strong multi-decadal variability, with far-reaching implications for hydroclimate in surrounding regions, especially in Indian Ocean rim countries with societies particularly vulnerable to anthropogenic climate change. It is therefore of interest to better understand how multi-decadal variability across the Indo-Pacific affects Indian Ocean characteristics, including its leading mode of variability, the Indian Ocean Dipole. Mechanisms will be discussed how multi-decadal Pacific variability is transmitted to the Indian Ocean through oceanic and atmospheric pathways, including via the Indonesian Throughflow and the Walker circulation, using a suite of ocean and climate model simulations. In addition, significant changes in heat and freshwater transport have been recorded in recent decades in the Indian Ocean and the Maritime Continent region. Implications of these observed low-frequency changes for interannual to decadal variability in the Indian Ocean and extreme events across the region will be discussed. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 21 09:24:10 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 21 Oct 2024 13:24:10 +0000 Subject: [Eoas-seminar] =?windows-1252?q?Colloquium_speaker_this_Friday_?= =?windows-1252?q?=2810/25=29=3A_Prof=2E_Isaiah_Bolden=2C_Chemical_Oceanog?= =?windows-1252?q?raphy_=96_Observations_=26_Outreach_Laboratory_at_Georgi?= =?windows-1252?q?a_Tech?= Message-ID: Hi all, Please join us this Friday for a colloquium by Dr. Isaiah Bolden, PI of the Chemical Oceanography ? Observations & Outreach Laboratory at Georgia Tech. Title: Biogeochemical ?Fingerprints? of Change in Coral Reef Ecosystems Across Space and Time Abstract: Modern coral reefs provide countless ecosystem services to coastal and global populations. However, numerous threats (i.e. sea surface warming, ocean acidification, pollution, dredging, etc.) are contributing to the decline away from coral dominance in these dynamic environments on a global scale. This seminar will discuss current and novel forensic biogeochemical ?clues? for fingerprinting and tracking calcifier and photosynthetic community dynamics in modern reefs in the context of this global decline. I will also briefly discuss potential implications for the use of corals as paleoclimate archives in biogeochemically dynamic environments as well as opportunities for similar ?clues? to reveal novel quantitative insights toward the impacts of coastal acidification in coastal GA. Isaiah will be driving down on Thursday and is available for meetings Thursday late evening (if needed) or Friday (preferred). Please let me know if you would like to meet with Isaiah and what times you are available, and I will get you on the schedule! Cheers, Michael -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 21 18:20:04 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 21 Oct 2024 22:20:04 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Peter Hoeflich Message-ID: "Physics and Numerical Challenges in Thermonuclear SNe" Peter Hoeflich Department of Physics, Florida State University Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend. NOTE: In-person attendance is requested. Zoom access is intended for external (non-departmental) participants only. https://fsu.zoom.us/j/94273595552 Meeting # 942 7359 5552 ? Colloquium recordings will be made available here, https://www.sc.fsu.edu/colloquium Wednesday, Oct 23, 2024, Schedule: * 3:00 to 3:30 PM Eastern Time (US and Canada) ? Nespresso & Teatime - 417 DSL Commons * 3:30 to 4:30 PM Eastern Time (US and Canada) ? Colloquium - 499 DSL Seminar Room Abstract: Thermodynamical Supernovae, so called SNe Ia, are one of the keys to high precision cosmology and to decipher the nature of the dark energy and matter. Moreover, they provide a playground for numerical astrophysical processes for an, apparent, diverse group of explosions of White Dwarf stars. What we observe as SNe Ia are low-energy photons, light curves and spectra, some days to months after the explosion is the light emitted from a rapidly expanding, envelope with 3D abundance imprints of the explosion from a low density and temperature plasma with population numbers far from thermodynamical equilibrium. The low-energy LCs and spectra are powered by radioactive decays producing hard X- and gamma-photons, and positrons with energies in the MeV-range. The transformation of high to low-energies involves particle cascading to low energy and, eventually, ionization of inner-shell electrons in a cold plasma, Auger effects etc. Modern observations from the UV (HST) to the MIR (JWST) provide direct probes but demand complex radiation and particle transport, hydrodynamical simulations. Taking the complexity of the problems, the resulting synthetic spectra depend on details of physics and approximation. We identify the link between high-energy and low-energy particles and photons as a main source for discrepancy. E.g. using the a) common assumption of energy distribution according to the electrons, b) cascading down of the high-energy leptons via the Spencer Fanu equation and c) full Monte Carlo treatment including ?shielding? of the non-thermal lepton cascade. We show that changes in the spectra by a), b) and c) produces larger variations than the underlying explosion physics. With observations as benchmark, we found c) to give good agreement and allows to identify and constrain the conditions where the explosive flame starts and its propagation. Additional colloquium details can be found here, Https://www.sc.fsu.edu/news-and-events/colloquium/1822-colloquium-with-peter-hoeflich-2024-10-23 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 5779 bytes Desc: not available URL: -------------- next part -------------- _______________________________________________ SC-Seminar-announce mailing list SC-Seminar-announce at lists.fsu.edu https://lists.fsu.edu/mailman/listinfo/sc-seminar-announce From eoas-seminar at lists.fsu.edu Mon Oct 21 10:29:31 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 21 Oct 2024 14:29:31 +0000 Subject: [Eoas-seminar] =?utf-8?q?Colloquium_speaker_this_Friday_=2810/25?= =?utf-8?q?=29=3A_Prof=2E_Isaiah_Bolden=2C_Chemical_Oceanography_=E2=80=93?= =?utf-8?q?_Observations_=26_Outreach_Laboratory_at_Georgia_Tech?= In-Reply-To: References: Message-ID: *By "late evening" on Thursday I meant to write late afternoon/early evening, sorry! There will be no midnight meetings with Isaiah ? -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] ________________________________ From: Eoas-seminar on behalf of eoas-seminar--- via Eoas-seminar Sent: Monday, October 21, 2024 9:24 AM To: eoas-seminar--- via Eoas-seminar Subject: [Eoas-seminar] Colloquium speaker this Friday (10/25): Prof. Isaiah Bolden, Chemical Oceanography ? Observations & Outreach Laboratory at Georgia Tech Hi all, Please join us this Friday for a colloquium by Dr. Isaiah Bolden, PI of the Chemical Oceanography ? Observations & Outreach Laboratory at Georgia Tech. Title: Biogeochemical ?Fingerprints? of Change in Coral Reef Ecosystems Across Space and Time Abstract: Modern coral reefs provide countless ecosystem services to coastal and global populations. However, numerous threats (i.e. sea surface warming, ocean acidification, pollution, dredging, etc.) are contributing to the decline away from coral dominance in these dynamic environments on a global scale. This seminar will discuss current and novel forensic biogeochemical ?clues? for fingerprinting and tracking calcifier and photosynthetic community dynamics in modern reefs in the context of this global decline. I will also briefly discuss potential implications for the use of corals as paleoclimate archives in biogeochemically dynamic environments as well as opportunities for similar ?clues? to reveal novel quantitative insights toward the impacts of coastal acidification in coastal GA. Isaiah will be driving down on Thursday and is available for meetings Thursday late evening (if needed) or Friday (preferred). Please let me know if you would like to meet with Isaiah and what times you are available, and I will get you on the schedule! Cheers, Michael -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Wed Oct 23 12:37:33 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 23 Oct 2024 16:37:33 +0000 Subject: [Eoas-seminar] =?windows-1252?q?Colloquium_speaker_this_Friday_?= =?windows-1252?q?=2810/25=29=3A_Prof=2E_Isaiah_Bolden=2C_Chemical_Oceanog?= =?windows-1252?q?raphy_=96_Observations_=26_Outreach_Laboratory_at_Georgi?= =?windows-1252?q?a_Tech?= In-Reply-To: References: Message-ID: Hi all, Looking forward to seeing you at the colloquium this Friday, 3-4 PM in EOA 1050. For those unable to attend in person but interested in getting a Zoom link, please let me know and I'll send one out on Friday before the colloquium. We still have some room for meetings with Isaiah before the colloquium, so please let me know if you'd be interested! Thanks, Michael -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] ________________________________ From: Eoas-seminar on behalf of eoas-seminar--- via Eoas-seminar Sent: Monday, October 21, 2024 9:24 AM To: eoas-seminar--- via Eoas-seminar Subject: [Eoas-seminar] Colloquium speaker this Friday (10/25): Prof. Isaiah Bolden, Chemical Oceanography ? Observations & Outreach Laboratory at Georgia Tech Hi all, Please join us this Friday for a colloquium by Dr. Isaiah Bolden, PI of the Chemical Oceanography ? Observations & Outreach Laboratory at Georgia Tech. Title: Biogeochemical ?Fingerprints? of Change in Coral Reef Ecosystems Across Space and Time Abstract: Modern coral reefs provide countless ecosystem services to coastal and global populations. However, numerous threats (i.e. sea surface warming, ocean acidification, pollution, dredging, etc.) are contributing to the decline away from coral dominance in these dynamic environments on a global scale. This seminar will discuss current and novel forensic biogeochemical ?clues? for fingerprinting and tracking calcifier and photosynthetic community dynamics in modern reefs in the context of this global decline. I will also briefly discuss potential implications for the use of corals as paleoclimate archives in biogeochemically dynamic environments as well as opportunities for similar ?clues? to reveal novel quantitative insights toward the impacts of coastal acidification in coastal GA. Isaiah will be driving down on Thursday and is available for meetings Thursday late evening (if needed) or Friday (preferred). Please let me know if you would like to meet with Isaiah and what times you are available, and I will get you on the schedule! Cheers, Michael -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Wed Oct 23 13:54:49 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 23 Oct 2024 17:54:49 +0000 Subject: [Eoas-seminar] Reminder of PhD student Ryan Remondelli defense seminar next week, Oct 29, 3pm Message-ID: Just a friendly reminder per the online calendar that there is a PhD defense seminar by Ryan Remondelli next week, October 29, 3pm, in room 3067. Title: Development of a Global Statistical-Dynamical Tropical Cyclone Genesis Guidance and an Evaluation of Environmental Conditions in the Global Ensemble Forecast System For those requiring remote access, the zoom link is: https://fsu.zoom.us/j/97298445347 Bob -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Oct 25 14:39:12 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 25 Oct 2024 18:39:12 +0000 Subject: [Eoas-seminar] =?windows-1252?q?Colloquium_speaker_this_Friday_?= =?windows-1252?q?=2810/25=29=3A_Prof=2E_Isaiah_Bolden=2C_Chemical_Oceanog?= =?windows-1252?q?raphy_=96_Observations_=26_Outreach_Laboratory_at_Georgi?= =?windows-1252?q?a_Tech?= In-Reply-To: References: Message-ID: Hi all, Looking forward to seeing you in a bit for Isaiah's colloquium! Reminder it's 3-4 PM in EOA 1050. For those who can't make it in person, the Zoom link is: https://fsu.zoom.us/j/91642333812 Cheers, Michael -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] ________________________________ From: Michael Diamond Sent: Monday, October 21, 2024 9:24 AM To: eoas-seminar--- via Eoas-seminar Subject: Colloquium speaker this Friday (10/25): Prof. Isaiah Bolden, Chemical Oceanography ? Observations & Outreach Laboratory at Georgia Tech Hi all, Please join us this Friday for a colloquium by Dr. Isaiah Bolden, PI of the Chemical Oceanography ? Observations & Outreach Laboratory at Georgia Tech. Title: Biogeochemical ?Fingerprints? of Change in Coral Reef Ecosystems Across Space and Time Abstract: Modern coral reefs provide countless ecosystem services to coastal and global populations. However, numerous threats (i.e. sea surface warming, ocean acidification, pollution, dredging, etc.) are contributing to the decline away from coral dominance in these dynamic environments on a global scale. This seminar will discuss current and novel forensic biogeochemical ?clues? for fingerprinting and tracking calcifier and photosynthetic community dynamics in modern reefs in the context of this global decline. I will also briefly discuss potential implications for the use of corals as paleoclimate archives in biogeochemically dynamic environments as well as opportunities for similar ?clues? to reveal novel quantitative insights toward the impacts of coastal acidification in coastal GA. Isaiah will be driving down on Thursday and is available for meetings Thursday late evening (if needed) or Friday (preferred). Please let me know if you would like to meet with Isaiah and what times you are available, and I will get you on the schedule! Cheers, Michael -- Dr. Michael S. Diamond Assistant Professor of Meteorology https://diamondclimate.wordpress.com/ [https://artsandsciences.fsu.edu/sites/g/files/upcbnu321/files/email-lockups/Earth%20Ocean%20and%20Atmospheric%20Science%20signature.png] -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Oct 25 15:37:02 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 25 Oct 2024 19:37:02 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Tara Khodaei Message-ID: "TopicContml: Genome-wide Phylogeny Reconstruction Using Topic Modeling" Tara Khodaei Postdoctoral Research Associate, Dept. of Scientific Computing, Florida State University Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend. NOTE: In-person attendance is requested. Zoom access is intended for external (non-departmental) participants only. https://fsu.zoom.us/j/94273595552 Meeting # 942 7359 5552 ? Colloquium recordings will be made available here, https://www.sc.fsu.edu/colloquium Wednesday, Oct 30, 2024, Schedule: * 3:00 to 3:30 PM Eastern Time (US and Canada) ? Nespresso & Teatime - 417 DSL Commons * 3:30 to 4:30 PM Eastern Time (US and Canada) ? Colloquium - 499 DSL Seminar Room Abstract: Inferring the evolutionary history of species or populations with genome-wide data is gaining ground, but computational constraints still limit our abilities in this area. We developed an alignment-free method, TopicContml, to infer the genome-wide species tree. The method uses probabilistic topic modeling, an unsupervised machine learning method inspired by natural language processing, to extract topic frequencies from k-mers derived from multilocus DNA sequences, which are then used by Contml to generate a species tree. The approach operates in two phases: (1) The multi-locus or genome-wide data is broken down into k-mers; these k-mers are then used to learn a probabilistic topic model and extracts the topic frequencies of sequences using Latent Dirichlet Allocation (LDA) model for each locus. (2) These topic frequencies from multiple loci are then used to estimate a phylogeny with in the PHYLIP package. We evaluate our method with different biological datasets. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1823-colloquium-with-tara-khodaei-2024-10-30 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4873 bytes Desc: not available URL: -------------- next part -------------- _______________________________________________ SC-Seminar-announce mailing list SC-Seminar-announce at lists.fsu.edu https://lists.fsu.edu/mailman/listinfo/sc-seminar-announce From eoas-seminar at lists.fsu.edu Mon Oct 28 19:52:49 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 28 Oct 2024 23:52:49 +0000 Subject: [Eoas-seminar] Seminar this Friday (11/1) by Ebrahim Ahmadisharaf Message-ID: Dear All, Professor Ebrahim Ahmadisharaf in the FSU's Department of Civil and Environmental Engineering will give a seminar 3-4pm this Friday in EOA 1050. Below is the title, abstract, and bio of the speaker. Please Let me know if you would like to meet with him before or after the seminar. Look forward to seeing you this Friday. -Ming Title: Towards Better Projections of Extreme Precipitation Events under Climate Change Abstract: To protect local communities against future flooding, design infrastructure for future plausible conditions and effectively operate our regulating water infrastructure, we need estimates of precipitation events under climate change. This is typically done by bias correcting the outputs of climate models that have coarse resolutions. However, the existing bias correction techniques often poorly project the high quantiles, which are of higher concern for flood risk mitigation and engineering design purposes. In this seminar, a statistical hybrid technique, called empirical quantile mapping with linear correction (EQM-LIN), is presented to improve the projection of future precipitation events under multiple plausible climate pathways around selected cities in the Southeast United States, with a history of flooding issues. The daily precipitation by one global climate model (GCM) was bias corrected using the EQM-LIN technique and a common statistical bias correction technique (EQM). Future precipitation time series under future climate scenarios-shared socioeconomic pathways (SSPs)-were then projected. It was found that the common statistical bias correction technique underestimates the high quantile events. The EQM-LIN, on the other hand, led to a better representation of these events. This study has implications for flood management, design of infrastructure and operation of regulating infrastructure like dams and gated spillways. Speaker: Ebrahim Ahmadisharaf is currently an Assistant Professor in the Center for Resilient Infrastructure and Disaster Response Center (RIDER) and Department of Civil and Environmental Engineering at Florida State University. His work primarily focuses on predicting floods and surface water quality under a changing climate and land cover to support decisions related to civil infrastructure design, flood mitigation and water pollution control. Prior to joining Florida State University, he was a Hydrologic Scientist at Danish Hydraulic Institute (DHI) and a Postdoctoral Associate at Virginia Tech. He has a PhD in Civil and Environmental Engineering from Tennessee Technological University and both MSc and BSc in Civil Engineering from Sharif University of Technology. His research has been published in several peer-reviewed journals. Dr. Ahmadisharaf has delivered multiple presentations at State, national and international conferences. Since 2016, he has been a reviewer for various funding agencies (e.g., NSF, NASA, DOE, DoD and FFAR), peer-reviewed journals and an elected member of AGU Water Quality Technical Committee and ASCE-EWRI TMDL Analysis and Modeling Task Committee, and Surface Water Hydrology and Watershed Management Technical Committees. He has been also an Associate Editor of ASCE's Journal of Hydrologic Engineering since 2023. Dr. Ahmadisharaf's research has led to about $4 million of grants supported by Federal (NSF, NAS, EPA, USDA and NASA) and State (Florida Department of Environmental Protection) agencies as well as private foundations. In 2024, he was selected as the NASEM's Early Career Research Fellow. -------------- Ming Ye, Ph.D. Professor in Hydrogeology Department of Earth, Ocean, and Atmospheric Science Office: 3015 EOAS Building (1011 Academic Way) Phone: 850-645-4987 Department of Scientific Computing Office: 489 Dirac Science Library Phone: 850-644-4587 Florida State University Tallahassee, FL 32306-4520 Cell: 850-567-4488 Email: mye at fsu.edu http://earth.eoas.fsu.edu/~mye/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Wed Oct 30 14:53:18 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 30 Oct 2024 18:53:18 +0000 Subject: [Eoas-seminar] Oceanography Thesis Defense - Kaitlin Dombroski, 11/05/24 at 10:15AM, EOAS 2061 In-Reply-To: References: Message-ID: Oceanography Seminar Kaitlin Dombroski M.S. Biological Oceanography Candidate Major Professor: Dr. Olivia U. Mason Time and Date: 10:15 AM on November 5, 2024 Location: EOAS 2061 TITLE: Dissolved oxygen concentrations influence microbial diversity, abundance, and dominant players in an oxygen minimum zone? ABSTRACT: The expansion of global oxygen minimum zones (OMZs) has a profound influence on the resident macrofauna. Less obvious is the influence of low oxygen on the diversity and abundance of planktonic microbes. Given the role that microbes play in regulating marine biogeochemical cycles, changes in community structure are ecologically consequential. Here we analyzed microbial community structure in relationship to oxygen in the northern Benguela Upwelling System (nBUS) OMZ. Analysis of 16S rRNA gene sequence (iTag) data revealed that oxygen was a primary driver influencing microbial community structure and diversity, with the highest diversity observed in the dysoxic samples, and the lowest in the suboxic samples. Differences in diversity were primarily due to changes in community evenness in relationship to oxygen. For example, evenness decreased in suboxic samples due to oscillations in the abundance of microbial groups such as SUP05 in the class Gammaproteobacteria, which significantly increased in abundance as oxygen decreased. Due to the significant relationship between SUP05 and oxygen concentrations, we analyzed all publicly available, medium to high quality genomes of SUP05 and their close relatives from the family Thioglobaceae (217 genomes total). These genomes were from microbes sampled in the nBUS and more broadly in global OMZs. Genome annotation revealed that SUP05 encodes carbon fixation, sulfur oxidation and denitrification. Importantly, few have the genetic machinery to carry out complete denitrification, as most lacked the final enzyme that converts nitrous oxide (N?O), to nitrogen gas (N?), suggesting that as OMZs expand in size and severity along with a concomitant increase in SUP05 abundances, this group may be become an important source of nitrous oxide through incomplete denitrification. Together, the data revealed that oxygen is an important regulator of microbial communities and their diversity, and that as OMZs expand and SUP05 abundances increase, their role in biogeochemical cycles will become more important, particularly as a potential source of greenhouse gases. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Thu Oct 31 13:36:09 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 31 Oct 2024 17:36:09 +0000 Subject: [Eoas-seminar] COAPS Short Seminar Series Message-ID: COAPS Short Seminar Series 11:00 AM Nov. 4th Attend F2F (in 255 Research A) or Virtually (via Zoom) https://fsu.zoom.us/j/92268262553 Meeting ID: 922 6826 2553 Talks are normally 12 minutes long with an additional 8 minutes for questions. Science Goals Related to Spray Modification of Hurricane Winds and Turbulent Fluxes By Amelia Bryan Description: This project builds on the work of a previous masters student, Danny Wallace who used data collected from dropsondes in tropical cyclones to conduct a log-profile analysis for wind speed, potential temperature, and humidity in order to estimate surface fluxes of momentum, sensible heat, and latent heat. This project works toward improving these estimates by improving the estimations of roughness length. Physical processes impacting the regional sea level variability in the Western European Shelf By Yueyang Lu Description: This project builds on the work of a previous masters student, Danny Wallace who used data collected from dropsondes in tropical cyclones to conduct a log-profile analysis for wind speed, potential temperature, and humidity in order to estimate surface fluxes of momentum, sensible heat, and latent heat. This project works toward improving these estimates by improving the estimations of roughness length. NOTE: Please feel free to forward/share this invitation with other groups/disciplines that might be interested in this talk/topic. All are welcome to attend. ________________________________________________________________________________ Microsoft Teams Need help? Join the meeting now Meeting ID: 281 153 836 207 Passcode: SQ6jgJ ________________________________ Dial in by phone +1 850-702-3768,,48208158# United States, Tallahassee Find a local number Phone conference ID: 482 081 58# For organizers: Meeting options | Reset dial-in PIN Org help ________________________________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 7993 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Thu Oct 31 18:44:52 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 31 Oct 2024 22:44:52 +0000 Subject: [Eoas-seminar] FW: Seminar this Friday (11/1) by Ebrahim Ahmadisharaf In-Reply-To: References: Message-ID: Dear All, just a reminder of tomorrow's seminar. Look forward to seeing you at 3pm in EOA 1050. -Ming -------------- Ming Ye, Ph.D. Professor in Hydrogeology Department of Earth, Ocean, and Atmospheric Science Department of Scientific Computing From: Eoas-seminar On Behalf Of eoas-seminar--- via Eoas-seminar Sent: Monday, October 28, 2024 7:53 PM To: eoas-seminar at lists.fsu.edu Subject: [Eoas-seminar] Seminar this Friday (11/1) by Ebrahim Ahmadisharaf Dear All, Professor Ebrahim Ahmadisharaf in the FSU's Department of Civil and Environmental Engineering will give a seminar 3-4pm this Friday in EOA 1050. Below is the title, abstract, and bio of the speaker. Please Let me know if you would like to meet with him before or after the seminar. Look forward to seeing you this Friday. -Ming Title: Towards Better Projections of Extreme Precipitation Events under Climate Change Abstract: To protect local communities against future flooding, design infrastructure for future plausible conditions and effectively operate our regulating water infrastructure, we need estimates of precipitation events under climate change. This is typically done by bias correcting the outputs of climate models that have coarse resolutions. However, the existing bias correction techniques often poorly project the high quantiles, which are of higher concern for flood risk mitigation and engineering design purposes. In this seminar, a statistical hybrid technique, called empirical quantile mapping with linear correction (EQM-LIN), is presented to improve the projection of future precipitation events under multiple plausible climate pathways around selected cities in the Southeast United States, with a history of flooding issues. The daily precipitation by one global climate model (GCM) was bias corrected using the EQM-LIN technique and a common statistical bias correction technique (EQM). Future precipitation time series under future climate scenarios-shared socioeconomic pathways (SSPs)-were then projected. It was found that the common statistical bias correction technique underestimates the high quantile events. The EQM-LIN, on the other hand, led to a better representation of these events. This study has implications for flood management, design of infrastructure and operation of regulating infrastructure like dams and gated spillways. Speaker: Ebrahim Ahmadisharaf is currently an Assistant Professor in the Center for Resilient Infrastructure and Disaster Response Center (RIDER) and Department of Civil and Environmental Engineering at Florida State University. His work primarily focuses on predicting floods and surface water quality under a changing climate and land cover to support decisions related to civil infrastructure design, flood mitigation and water pollution control. Prior to joining Florida State University, he was a Hydrologic Scientist at Danish Hydraulic Institute (DHI) and a Postdoctoral Associate at Virginia Tech. He has a PhD in Civil and Environmental Engineering from Tennessee Technological University and both MSc and BSc in Civil Engineering from Sharif University of Technology. His research has been published in several peer-reviewed journals. Dr. Ahmadisharaf has delivered multiple presentations at State, national and international conferences. Since 2016, he has been a reviewer for various funding agencies (e.g., NSF, NASA, DOE, DoD and FFAR), peer-reviewed journals and an elected member of AGU Water Quality Technical Committee and ASCE-EWRI TMDL Analysis and Modeling Task Committee, and Surface Water Hydrology and Watershed Management Technical Committees. He has been also an Associate Editor of ASCE's Journal of Hydrologic Engineering since 2023. Dr. Ahmadisharaf's research has led to about $4 million of grants supported by Federal (NSF, NAS, EPA, USDA and NASA) and State (Florida Department of Environmental Protection) agencies as well as private foundations. In 2024, he was selected as the NASEM's Early Career Research Fellow. -------------- Ming Ye, Ph.D. Professor in Hydrogeology Department of Earth, Ocean, and Atmospheric Science Office: 3015 EOAS Building (1011 Academic Way) Phone: 850-645-4987 Department of Scientific Computing Office: 489 Dirac Science Library Phone: 850-644-4587 Florida State University Tallahassee, FL 32306-4520 Cell: 850-567-4488 Email: mye at fsu.edu http://earth.eoas.fsu.edu/~mye/ -------------- next part -------------- An HTML attachment was scrubbed... URL: