From eoas-seminar at lists.fsu.edu Tue Sep 3 11:02:10 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 3 Sep 2024 15:02:10 +0000 Subject: [Eoas-seminar] MET seminar TODAY - Tuesday Sep 3 - Dr. Jie Sun (FSU) Message-ID: All, This is a reminder of the Meteorology seminar TODAY at 3pm. Please join us for a talk by our own Dr. Jie Sun (FSU) on the topic of ?Understanding of Hurricane Surface Wind Profiles from the Effective Absolute Angular Momentum Perspective.? DATE: Tuesday Sep 3 TIME: 3 PM LOCATION: EOAS 1044 SPEAKER: Dr. Jie Sun TITLE: Understanding of Hurricane Surface Wind Profiles from the Effective Absolute Angular Momentum Perspective ABSTRACT: Tropical cyclones (TCs) are among the deadliest and costliest natural hazards. Beside TC track, the intensity and size are the two important metrics for assessing TC severity and potential hazards. Despite considerable progress in predicting TC track, our current understanding and prediction capabilities regarding the TC intensity-size relation and the resultant TC surface wind profile remain limited. Our previous study (Sun et al., 2022) reveals that the radial profile of a TC's surface wind is primarily governed by its effective absolute angular momentum (eAAM). The eAAM combines the TC's absolute angular momentum (AAM) with its inward frictional loss rates, serving as a radial invariant for the TC. The radial profiles of surface winds for individual TCs can be uniquely determined based on the inward frictional loss rates and their eAAM values. In this talk, I will present results obtained from two series of idealized axis-symmetric TC simulations using Cloud Model 1 (CM1). Each of the two series consists of idealized axis-symmetric TC simulations initialized with different initial vortices. One series uses a lower value for the momentum exchange coefficient (Cd) and the other uses a higher value, representing two different environment conditions for TCs. Our findings indicate that under the same value of Cd, the radial profiles of TC surface winds simulated by the CM1 model with different initial vortices can be accurately reproduced by the eAAM model under the same parameters for the inward loss rates of AAM. Larger initial vortices have lager radii for inflows towards TC centers under the same conditions of surface roughness, sea surface temperature, and moisture content. Therefore, larger initial vortices result in larger values of eAAM for TCs. The larger their eAAM values, the stronger their surface winds are at the same radii. The effect of differences in Cd can be modeled by different parameter values for the inward loss rates of AAM in the eAAM model. The immediate consequence of the increase in the inward loss rates of AAM is the weakening of surface winds at the same radii. For the same initial vortices, the increase in the inward loss rates of AAM also affects radial profiles of TC surface winds inevitably by decreasing their eAAM values. The decrease in eAAM values is a result of the contraction of the radii for inflows towards TC centers when TCs reach their equilibrium states. The reduction in eAAM values under stronger surface roughness also contributes to the weakening of surface winds at the same radii. 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 Sep 3 16:39:48 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 3 Sep 2024 20:39:48 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Alan Lemmon Message-ID: "Connecting Phenotypes and Genotypes to Understand Species Diversification" Alan Lemmon Dept. of Scientific Computing College of Arts and Sciences 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, Sep 4th, 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 Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1812-colloquium-with-alan-lemmon-2024-09-04 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 3825 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 Wed Sep 4 09:56:39 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 4 Sep 2024 13:56:39 +0000 Subject: [Eoas-seminar] EOAS Colloquium this Friday, Professor Ming Cai Message-ID: Dear all, Please join us for the EOAS Colloquium this Friday, by Professor Ming Cai from our own department. Location and Time: EOAS 1050, Friday September 6th, 3:00PM. Abstract Details below. ---- A New Paradigm for Principles-Based Adept Predictions of Global Warming from Climate Mean States Prof. Ming Cai Florida State University Abstract Distinguishing anthropogenic warming from natural variability in observations and reducing uncertainty in global warming projections by climate models remain critical challenges for climate scientists. In our work, we present a groundbreaking principle-based framework for adept predictions of the global mean warming and its spatial pattern in response to external energy perturbations from climate mean states without running climate models or relying on statistical trend analysis. When applied to the observed climate mean state of 1980-2000, our framework accurately predicts the global warming observed from 1980-2000 to 2000-2020, with a prediction of 0.403 K compared to an observed value of 0.414 K. Our predictions from the preindustrial mean climate states of individual CMPI6 models yields a similar median global mean warming to their warming projections under the abrupt 4?CO2 scenario (5.4 K versus 5.6 K), but with noticeably less inter-model spread. Our predictions not only exhibit a high map correlation skill comparable to that of each individual CMIP6 model for the observed warming, but also capture the temporal pace of their warming projections under 1% annual CO2-increasing scenario. The success of our global warming prediction from climate mean states under any given scenarios of CO2 increasing without running climate models is built on the following two innovations. One of them is our recent discovery of nature?s climate feedback 'circuit' associated with temperature feedback. The other is that we extract the information of surface energy amplification by non-temperature feedback from the ratio of downward longwave energy emission from the atmosphere to solar energy absorbed by the surface in climate mean states. The product of amplification rates by temperature and non-temperature feedbacks corresponds to the total amplification of energy perturbations at the surface caused by CO2 increasing. Temperature feedback yields a 6.6-fold global mean amplification, while non-temperature feedback contributes an another 2.3-fold amplification. This results in a total 15.8-fold increase in the global mean of CO2-induced energy perturbations at the surface. The energy balance between the enhanced thermal emission from the surface and the total external energy input perturbations amplified by temperature and non-temperature feedback determines the global surface warming in response to CO2 increasing. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Wed Sep 4 15:15:05 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 4 Sep 2024 19:15:05 +0000 Subject: [Eoas-seminar] COAPS Short Seminar Series Message-ID: COAPS Short Seminar Series 11:00 AM September 9th 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. Our second talk is allocated 30 minutes, with 10 minutes for questions. SFMR Performance during the 2024 Hurricane Season By Heather Holbach Description: This presentation will focus on assessing the calibration quality of the various SFMR units that have collected data during the 2024 hurricane season by comparing the observed brightness temperatures with modeled brightness temperatures. Initial results indicate that the calibration quality of several fo the SFMR units are questionable and may need to be corrected prior to collecting additional data this hurricane season. Mesoscale Eddy Effects on Oceanic Tracers: Frontogenesis and Mixing By Yueyang Lu Description: Mesoscale eddies with lateral length scales of O(10?100) km are ubiquitous in the ocean. They profoundly affect the distribution of tracers such as carbon and nutrients. The eddies can generate tracer fronts and enhance mixing. Their effects have been traditionally described by eddy-induced advection and diffusion. In this talk, I will first discuss the role of eddies in generating the large-scale oceanic front associated with the Gulf Stream. Our analysis reveals that the eddies act to sharpen the front whereas the large-scale current weakens it. This eddy-induced frontogenesis is captured by a novel generalized eddy-induced advection, which effectively reproduces the front in an idealized coarse-resolution model. In the second part, I will discuss a commonly overlooked discrepancy between Lagrangian and Eulerian eddy diffusivities. The Lagrangian eddy diffusivity, derived from dispersion of drifters or particles, is inherently nonlocal in both space and time, describing only down-gradient diffusive behavior. In contrast, the Eulerian eddy diffusivity, derived from tracer concentrations and eddy fluxes, is local. I will show that the two differ significantly in both along- and cross-stream directions. The discrepancy arises from the nonlocal nature of the Lagrangian diagnostic and the anisotropy of eddy-induced mixing. To address this, I propose a novel approach to calculating the Eulerian diffusivity from Lagrangian particles. This talk aims to highlight the advantages of an advective framework for representing eddy effects in ocean climate models, and to refine our understanding of eddy mixing rates derived from Lagrangian data. ________________________________________________________________________________ Microsoft Teams Need help? Join the meeting now Meeting ID: 247 255 673 252 Passcode: eXB6qm ________________________________ Dial in by phone +1 850-702-3768,,730274014# United States, Tallahassee Find a local number Phone conference ID: 730 274 014# 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: 9148 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Fri Sep 6 10:05:54 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 6 Sep 2024 14:05:54 +0000 Subject: [Eoas-seminar] REMINDER:: EOAS Colloquium TODAY 3pm, Professor Ming Cai In-Reply-To: References: Message-ID: Dear all, Please join us for the EOAS Colloquium this afternoon by Professor Ming Cai from our own department. Location and Time: EOAS 1050, Friday September 6th, 3:00PM. Abstract Details below. ---- A New Paradigm for Principles-Based Adept Predictions of Global Warming from Climate Mean States Prof. Ming Cai Florida State University Abstract Distinguishing anthropogenic warming from natural variability in observations and reducing uncertainty in global warming projections by climate models remain critical challenges for climate scientists. In our work, we present a groundbreaking principle-based framework for adept predictions of the global mean warming and its spatial pattern in response to external energy perturbations from climate mean states without running climate models or relying on statistical trend analysis. When applied to the observed climate mean state of 1980-2000, our framework accurately predicts the global warming observed from 1980-2000 to 2000-2020, with a prediction of 0.403 K compared to an observed value of 0.414 K. Our predictions from the preindustrial mean climate states of individual CMPI6 models yields a similar median global mean warming to their warming projections under the abrupt 4?CO2 scenario (5.4 K versus 5.6 K), but with noticeably less inter-model spread. Our predictions not only exhibit a high map correlation skill comparable to that of each individual CMIP6 model for the observed warming, but also capture the temporal pace of their warming projections under 1% annual CO2-increasing scenario. The success of our global warming prediction from climate mean states under any given scenarios of CO2 increasing without running climate models is built on the following two innovations. One of them is our recent discovery of nature?s climate feedback 'circuit' associated with temperature feedback. The other is that we extract the information of surface energy amplification by non-temperature feedback from the ratio of downward longwave energy emission from the atmosphere to solar energy absorbed by the surface in climate mean states. The product of amplification rates by temperature and non-temperature feedbacks corresponds to the total amplification of energy perturbations at the surface caused by CO2 increasing. Temperature feedback yields a 6.6-fold global mean amplification, while non-temperature feedback contributes an another 2.3-fold amplification. This results in a total 15.8-fold increase in the global mean of CO2-induced energy perturbations at the surface. The energy balance between the enhanced thermal emission from the surface and the total external energy input perturbations amplified by temperature and non-temperature feedback determines the global surface warming in response to CO2 increasing. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Sep 6 10:08:29 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 6 Sep 2024 14:08:29 +0000 Subject: [Eoas-seminar] REMINDER:: EOAS Colloquium TODAY 3pm, Professor Ming Cai In-Reply-To: References: Message-ID: For those who cannot come to the symposium in person, here is the zoom link Topic: EOAS Colloquium - Ming Cai https://fsu.zoom.us/j/99072728253 Thanks. Ming On Sep 6, 2024, at 10:05 AM, eoas-seminar--- via Eoas-seminar wrote: Dear all, Please join us for the EOAS Colloquium this afternoon by Professor Ming Cai from our own department. Location and Time: EOAS 1050, Friday September 6th, 3:00PM. Abstract Details below. ---- A New Paradigm for Principles-Based Adept Predictions of Global Warming from Climate Mean States Prof. Ming Cai Florida State University Abstract Distinguishing anthropogenic warming from natural variability in observations and reducing uncertainty in global warming projections by climate models remain critical challenges for climate scientists. In our work, we present a groundbreaking principle-based framework for adept predictions of the global mean warming and its spatial pattern in response to external energy perturbations from climate mean states without running climate models or relying on statistical trend analysis. When applied to the observed climate mean state of 1980-2000, our framework accurately predicts the global warming observed from 1980-2000 to 2000-2020, with a prediction of 0.403 K compared to an observed value of 0.414 K. Our predictions from the preindustrial mean climate states of individual CMPI6 models yields a similar median global mean warming to their warming projections under the abrupt 4?CO2 scenario (5.4 K versus 5.6 K), but with noticeably less inter-model spread. Our predictions not only exhibit a high map correlation skill comparable to that of each individual CMIP6 model for the observed warming, but also capture the temporal pace of their warming projections under 1% annual CO2-increasing scenario. The success of our global warming prediction from climate mean states under any given scenarios of CO2 increasing without running climate models is built on the following two innovations. One of them is our recent discovery of nature?s climate feedback 'circuit' associated with temperature feedback. The other is that we extract the information of surface energy amplification by non-temperature feedback from the ratio of downward longwave energy emission from the atmosphere to solar energy absorbed by the surface in climate mean states. The product of amplification rates by temperature and non-temperature feedbacks corresponds to the total amplification of energy perturbations at the surface caused by CO2 increasing. Temperature feedback yields a 6.6-fold global mean amplification, while non-temperature feedback contributes an another 2.3-fold amplification. This results in a total 15.8-fold increase in the global mean of CO2-induced energy perturbations at the surface. The energy balance between the enhanced thermal emission from the surface and the total external energy input perturbations amplified by temperature and non-temperature feedback determines the global surface warming in response to CO2 increasing. _______________________________________________ Eoas-seminar mailing list Eoas-seminar at lists.fsu.edu https://lists.fsu.edu/mailman/listinfo/eoas-seminar -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Sep 6 16:07:38 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 6 Sep 2024 20:07:38 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Stephen H. Yuwono Message-ID: "Exploration of Electronic Structure Theory in the Relativistic and Time-Dependent Frameworks" Stephen H. Yuwono Department of Chemistry and Biochemistry, College of Arts and Sciences 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, Sep 11th, 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 Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1813-colloquium-with-stephen-h-yuwono-2024-09-11 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4323 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 Thu Sep 12 10:18:58 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 12 Sep 2024 14:18:58 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Gerrit Welper Message-ID: "Approximation and Optimization Theory for Neural Networks" Gerrit Welper Assistant Professor of Mathematics, College of Sciences University of Central Florida 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 Zoom Meeting # 942 7359 5552 ? Colloquium recordings will be made available here, https://www.sc.fsu.edu/colloquium Wednesday, Sep 18, 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: The error analysis of neural networks is often split into three components: the approximation error, describes how well the networks can approximate functions, given infinite data. The estimation error describes the additional error contributions from sampling and the optimization error describes the contributions from the numerical optimizers. In particular, the latter is best understood in severely over-parametrized regimes, where we have more samples than width and the networks show an almost linear behavior dominated by the neural tangent kernel (NTK). Many practical networks, however, have less width than samples and therefore, we extend the theory to the under-parametrized regime. This requires a more careful consideration of approximation errors and results in a unified theory for all three error components. Since the NTK theory cannot adequately capture the nonlinear nature of the networks, we also provide some first steps towards a nonlinear theory by comparing trained simple model networks with known results form nonlinear approximation. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1814-colloquium-with-gerrit-welper-2024-09-18 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4957 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 Wed Sep 18 14:28:15 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 18 Sep 2024 18:28:15 +0000 Subject: [Eoas-seminar] MET seminar - Tuesday Sep 24 - Dr. Neda Yaghoobian (FAMU-FSU Engineering) Message-ID: Our next Meteorology seminar will be on Tuesday, September 24 at 3pm. Please join us for a talk by Dr. Neda Yaghoobian (FAMU-FSU College of Engineering) on the topic of ?Dispersion Dynamics of Buoyant Plumes in the Stratified Atmospheric Boundary Layer.? If you would like to schedule an individual meeting with Dr. Yaghoobian, please contact cdholmes at fsu.edu with the times of your availability on the day of the seminar. DATE: Tuesday Sep 24 TIME: 3 PM LOCATION: EOAS 1044 SPEAKER: Dr. Neda Yaghoobian AFFILIATION: FAMU-FSU College of Engineering TITLE: Dispersion Dynamics of Buoyant Plumes in the Stratified Atmospheric Boundary Layer ABSTRACT: Buoyant plumes, propelled by concentrated heat and mass sources, are significant contributors to atmospheric pollution, affecting air quality, human health, and ecological systems. Originating from phenomena such as fires, volcanic eruptions, and chimney smokestacks, they represent a crucial class of problems in atmospheric dynamics. The behavior of turbulent buoyant plumes is influenced by the characteristics of the plume source, topography, and background flow conditions. The atmospheric boundary layer, which varies diurnally from a few hundred to several thousand meters in height, significantly impacts the background flow conditions and consequently the plume dynamics. Using large-eddy simulations, this study investigates how the diurnal variations in atmospheric stratification affect the dispersal behavior of turbulent buoyant plumes in crossflows. The results indicate that variations in the ABL stratification significantly impact the plume's energy content and decay, leading to distinctive patterns of dispersion, entrainment, and spread. 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 Thu Sep 19 15:30:07 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 19 Sep 2024 19:30:07 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with S. Lakshmivarahan Message-ID: "Impact of placement of observations on Observability Gramian: Forward Sensitivity Method" S. Lakshmivarahan George Lynn Cross Research Professor Emeritus School of Computer Science University of Oklahoma 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, Sep 25th, 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: By deriving an explicit expression for the observability Gramian G, it shown that the adjoint gradient is the image under G of the initial error in control. By relating the structure of the Gramian to the forward sensitivities of the model and the sensitivity of the forward operator, sufficient conditions - in terms of the number and placement of observations, for the positive definiteness of the Gramian G are derived. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1816-colloquium-with-s-lakshmivarahan-2024-09-25 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4337 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 Sep 23 09:35:46 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 23 Sep 2024 13:35:46 +0000 Subject: [Eoas-seminar] EOAS colloquium 9/27 - Pete Adams Message-ID: Dear all, Please join us this Friday, September 27 at 3 PM in EOAS 1050 for the departmental colloquium (should the weather permit...). The speaker will be Dr. Pete Adams from the University of Florida. Pete is a geomorphologist with a particular focus on coastal systems and Florida landscapes. His talk is entitled: "Uplift of the Florida Peninsula, Reversal of the St. Johns River, and the Origin of Cape Canaveral" If you would like to meet with Pete on Friday, please let me (mfstokes at fsu.edu) know of your availability. A zoom link for the seminar will be provided on Friday. Sincerely, Maya Dr. Maya Stokes Assistant Professor Department of Earth, Ocean, and Atmospheric Science (EOAS) Florida State University -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Tue Sep 24 10:12:46 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 24 Sep 2024 14:12:46 +0000 Subject: [Eoas-seminar] MET seminar - TODAY 3pm - Dr. Neda Yaghoobian (FAMU-FSU Engineering) In-Reply-To: References: Message-ID: Our next Meteorology seminar will be on TODAY at 3pm. Please join us for a talk by Dr. Neda Yaghoobian (FAMU-FSU College of Engineering) on the topic of ?Dispersion Dynamics of Buoyant Plumes in the Stratified Atmospheric Boundary Layer.? DATE: Tuesday Sep 24 TIME: 3 PM LOCATION: EOAS 1044 SPEAKER: Dr. Neda Yaghoobian AFFILIATION: FAMU-FSU College of Engineering TITLE: Dispersion Dynamics of Buoyant Plumes in the Stratified Atmospheric Boundary Layer ABSTRACT: Buoyant plumes, propelled by concentrated heat and mass sources, are significant contributors to atmospheric pollution, affecting air quality, human health, and ecological systems. Originating from phenomena such as fires, volcanic eruptions, and chimney smokestacks, they represent a crucial class of problems in atmospheric dynamics. The behavior of turbulent buoyant plumes is influenced by the characteristics of the plume source, topography, and background flow conditions. The atmospheric boundary layer, which varies diurnally from a few hundred to several thousand meters in height, significantly impacts the background flow conditions and consequently the plume dynamics. Using large-eddy simulations, this study investigates how the diurnal variations in atmospheric stratification affect the dispersal behavior of turbulent buoyant plumes in crossflows. The results indicate that variations in the ABL stratification significantly impact the plume's energy content and decay, leading to distinctive patterns of dispersion, entrainment, and spread. 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 Sep 24 15:17:08 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 24 Sep 2024 19:17:08 +0000 Subject: [Eoas-seminar] [Seminar-announce] Canceled: Scientific Computing Colloquium with S. Lakshmivarahan Message-ID: This colloquium has been cancelled due to university closure. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 1501 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 Wed Sep 25 22:50:04 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 26 Sep 2024 02:50:04 +0000 Subject: [Eoas-seminar] MET seminar - Tuesday Oct 1 - Dr. David Peterson Message-ID: Our next Meteorology seminar will be on Tuesday Oct 1 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?? If you would like to schedule an individual meeting with Dr. Peterson, please contact cdholmes at fsu.edu with the times of your availability on the day of the seminar. These meetings will be online as Dr. Peterson is joining us remotely for the seminar. 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 Sun Sep 29 13:01:53 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Sun, 29 Sep 2024 17:01:53 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Zhe He Message-ID: "Towards An AI-Powered Application for Laboratory Test Results Comprehension " Zhe He Interim Director for the Institute for Successful Longevity Associate Professor in the School of Information (iSchool) 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 2, 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: Viewing laboratory test results is the most frequent activity for patients accessing patient portals, yet the interpretation of these results can be challenging and confusing. While previous research has explored various methods of presenting lab results, there has been limited focus on providing tailored information support based on an individual's medical context. Our AHRQ-funded LabGenie project addresses this gap by developing a user-centered, web-based tool designed to enhance patient engagement and understanding of lab results, particularly for older adults with multiple chronic conditions who often face difficulties due to limited health literacy and technology skills. In this talk, I will present a series of studies that investigate the challenges older adults face in understanding lab test results and our efforts to leverage generative AI and advanced biostatistical methods to provide better support. Our formative research included a survey of 270 patients to identify factors affecting their comprehension of lab results. Additionally, we evaluated the effectiveness of four large language models (LLMs) for answering lab-related questions sourced from a community Q&A website. To further enhance the accuracy of lab test interpretation, we analyzed the seasonality of lab results in a cohort of older adults with Alzheimer?s disease. We also used knowledge-augmented LLMs to determine normal ranges of various condition, predict differential diagnoses based on lab results and other medical information, and generate tailored questions for patients to follow with their doctors. Through these studies, we aim to develop innovative, AI-driven approaches that improve the accessibility and comprehension of lab results for older adults, ultimately promoting better patient engagement and shared decision-making in healthcare. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1818-colloquium-with-zhe-he-2024-10-02 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 5826 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 Sep 30 22:52:03 2024 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 1 Oct 2024 02:52:03 +0000 Subject: [Eoas-seminar] EOAS Colloquium, Friday October 4th, 3:00PM - Sierra Landreth, Alexis Slentz, Michael Core & Virginia Beade Message-ID: Dear all, Please join us this Friday 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 Beade: TBD Location and Time: EOAS 1050, Friday October 4th, 3:00PM. Detailed abstracts are given below. Please take the time to come along and support our graduate students! 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. -------------- next part -------------- An HTML attachment was scrubbed... URL: