From eoas-seminar at lists.fsu.edu Thu Oct 5 11:28:18 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 5 Oct 2023 15:28:18 +0000 Subject: [Eoas-seminar] Reminder of Special EOAS Colloquium Tomorrow, October 6, 300PM Message-ID: Colleagues, For the EOAS Colloquium on October 6, we have a special visitor: Dr. Michael R. Farrar (M.S. and Ph.D. from FSU Meteorology) Director, National Centers for Environmental Prediction NOAA/NWS Former American Meteorological Society President Seminar Title: "National Weather Service (NWS) Transformation and the role of the National Centers for Environmental Prediction (NCEP)" Since this time slot overlaps with Prof. Fuelberg's MET4500 class, he has replaced his class for attendance with attending this seminar. Presentation begins at 3pm with snacks available at 245pm. Room 1050. Bob Hart -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Thu Oct 5 16:41:48 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 5 Oct 2023 20:41:48 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Manoj Atolia Message-ID: "Growth, Income Distribution and Policy Implications of Automation" Manoj Atolia Department of Economics, Florida State University (FSU) 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. Note: Zoom access is for 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 11, 2023, 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: Motivated by recent discussions about the distributional implications of automation and the possibility of a "universal basic income" (UBI) program to address them, we analyze the distributional and political economy implications of automation in a task-based model of production. We conceptualize automation as a shift in the relative productivity of capital at certain tasks that reduces the set of tasks done by labor. We capture distributional concerns by including two kinds of agents ? workers, who supply labor, and entrepreneurs, who own capital. After characterizing the equilibrium with fixed tax rates, we endogenize policy variables by computing the political economy equilibrium under majority voting, where policymakers have access to a capital tax and a transfer to workers (a "universal basic income"). We quantitatively study an episode of automation in a calibrated model, and find that workers prefer higher capital taxes in the long run, but lower capital taxes during the transition. Interestingly, this results in larger welfare gains for entrepreneurs than for workers relative to a constant tax regime, suggesting that capital owners stand to benefit from the institution of a UBI in a policy regime that maximizes worker welfare. In other results, we derive conditions under which the economy experiences full automation, characterize comparative statics of traditional technical progress vs. automation, give a condition under which automation may lower long-term wages, and show that all kinds of capital should be taxed at the same rate (i.e. no "robot taxes"). Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1752-colloquium-with-manoj-atolia-2023-10-11 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4735 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 6 08:34:48 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 6 Oct 2023 12:34:48 +0000 Subject: [Eoas-seminar] EOAS Colloquium this afternoon: FSU Alumnus Dr. Michael Farrar, Director of NCEP Message-ID: Colleagues, For the EOAS Colloquium this afternoon, we have a special visitor: Dr. Michael R. Farrar (M.S. and Ph.D. from FSU Meteorology) Director, National Centers for Environmental Prediction NOAA/NWS Former American Meteorological Society President Seminar Title: "National Weather Service (NWS) Transformation and the role of the National Centers for Environmental Prediction (NCEP)" Since this time slot overlaps with Prof. Fuelberg's MET4500 class, he has replaced his class for attendance with attending this seminar. Presentation begins at 3pm with snacks available at 245pm. Room 1050. Bob Hart -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Thu Oct 12 10:37:33 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 12 Oct 2023 14:37:33 +0000 Subject: [Eoas-seminar] [Seminar-announce] Joint GFDI-SC Colloquium with John Marshall Message-ID: "Numerical Exploration of the Ocean Circulation on Icy Moons" John Marshall Professor of Ocean and Climate Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 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. Note: Zoom access is for 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 18, 2023, 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: Subsurface oceans on the icy moons of our Solar System, such as Enceladus and Europa, are receiving increasing attention in the search for extraterrestrial life. It is thus important to understand the dynamics of these oceans and identify circulation pathways and timescales. Here, we use numerical simulations to explore likely ocean circulations if the primary energy source is geothermal heating from below. Codes developed in Julia and deployed on GPUs are used. We describe the phenomenology of the resulting circulation patterns as the assumed rotation rate and ocean depth is varied. Key non- dimensional numbers are identified, and used to organize our study, informing speculations about the nature of the circulation of real icy moons. Based on best estimates of controlling non-dimensional parameters, we argue that the ocean circulations on Europa and Enceladus are likely to be very strongly influenced by rotation and manifest multiple alternating bands of zonal currents flowing in opposite direction, with distinctly different tropical and extratropical regimes. The likely nature of the small-scale turbulence and convection excited by bottom heating, which energizes the zonal jets, is also described. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1753-gfdi-colloquium-with-john-marshall-2023-10-18 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4375 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 Oct 12 14:18:16 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 12 Oct 2023 14:18:16 -0400 Subject: [Eoas-seminar] Fwd: Carothers Lectures November 14 In-Reply-To: References: Message-ID: The next lecture in the university-wide Carothers lecture series? is on Tuesday, November 14, when Shayne McConomy from the College of Engineering, will speak to us about "Learning as a Collision Model." Shayne will be introduced by Emily Pritchard. I've attached a flyer for the talk to this email, and the direct link to the sign-up page for the luncheon is online here: https://www.research.fsu.edu/research-offices/ord/milton-carothers-lecture-series/milton-carothers-lecture-registration-november2023/ -------------- next part -------------- A non-text attachment was scrubbed... Name: mcconomy_flyer.pdf Type: application/pdf Size: 1116640 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Fri Oct 13 10:28:29 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 13 Oct 2023 14:28:29 +0000 Subject: [Eoas-seminar] MET Seminar - Thursday October 19 - Prof. Bradford Johnson (FSU Dept. of Geography) Message-ID: Dear all, Please join us next Thursday October 19 for a Meteorology seminar, given by Prof. Bradford Johnson of FSU?s Department of Geography. He will speak about ?Getting Particular about Urban Precipitation Enhancement?. (Abstract below). Prof. Johnson will be joining us in person in 1044. If you are interested in meeting with the speaker, please contact Allison Wing (awing at fsu.edu). He is available on Thursday afternoon before the seminar. **Graduate students, there will be a free lunch with the speaker at 12:30 PM; please contact Allison Wing to sign up.** DATE: Thursday October 19 SEMINAR TIME: Refreshments at 3 PM, Talk 3:15 PM - 4:15 PM. SEMINAR LOCATION: EOA 1044 (Speaker in person) SPEAKER: Prof. Bradford Johnson TITLE: Getting Particular about Urban Precipitation Enhancement ABSTRACT: The relationship between the growth of urbanization, the surrounding natural environment, and the corresponding atmospheric response has been studied extensively. Through the replacement of forests, agricultural lands, and other natural land cover with impervious surfaces such as roads, buildings, and supporting infrastructure, several environmental changes can be observed. The combination of unnatural surfaces, commercial and industrial activities, increased emissions from anthropogenic heating and cooling, and decreased evapotranspiration leads to discontinuities in the surface energy budget. This often results in retention of heat in urban areas compared to surrounding rural areas, giving rise to the urban heat island (UHI). Increased surface roughness via the urban form and the UHI alter precipitation distribution and intensity through increased surface-based mechanical and thermal buoyancy, respectively. Urban precipitation research methods often fall into two broad categories ? numerical simulations and climatological studies. High-resolution numerical models, such as the Weather Research and Forecasting model, are deployed to assess dynamic response to land cover change via case study or seasonal simulations at urban-resolving spatial resolutions of less than or equal to 3km. Climatological approaches leverage a combination of in situ, radar, satellite-borne, and rain gauge products to characterize urban precipitation distribution from historical observing networks. Efforts to translate the knowledge of urban precipitation modification to actionable science have had mixed results. The information needed by end users can vary according to the task or application. The current body of research has identified preferred regions of enhanced rainfall ? over and downwind of the city center ? however, these generalizations are not optimal for operational use. The identification of precipitation hotspots (or areas where heavier and/or more frequent precipitation are observed relative to neighboring subregions) would provide actionable information toward numerous decision-making processes. Through both climatological and modeling methods, an investigation of urban precipitation hotspots is conducted. This talk highlights a climatological approach and poses a couple of questions: 1) What areas within cities have higher convective precipitation compared to city wide observations? 2) What are the antecedent atmospheric conditions during extreme, isolated precipitation events? ?????????????????? Allison Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean and Atmospheric Science Florida State University awing at fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Oct 13 14:17:14 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 13 Oct 2023 14:17:14 -0400 Subject: [Eoas-seminar] Upcoming Thesis and Dissertation Defenses Message-ID: As you are aware, we have an open house invitation for thesis and dissertation defenses.? This practice is followed to ensure we build a scholarly community among our student and faculty population.? In keeping with that mission, please consider joining us for the upcoming dissertation and thesis defenses, which are listed below.? In general, all defenses are posted to our public calendar , so you can always see what's coming around soon. *_17 Oct, rm 2061 EOA, 10 AM to 12 PM_* OCE Thesis Dfns--Paige Payne Title:? "Enigmatic, abundant and active Anaerolineae mediate carbon transformations in a salt marsh ecosystem? [Major Prof, Dr. M. Fuentes] Zoom ID: https://fsu.zoom.us/j/92422604369 -- *Jimmy Pastrano* */Coordinator of Graduate Studies/* */FSU Earth, Ocean, and Atmospheric Science/* *3008-C EOAS Bldg* *Tallahassee, FL 32306-4520*** -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 16 08:50:05 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 16 Oct 2023 12:50:05 +0000 Subject: [Eoas-seminar] EOAS Colloquium, Friday, Oct 20 @ 3:00 PM Message-ID: Dear colleagues, I am happy to announce that this week's speaker of the EOAS colloquium is Dr. Michael Diamond of EOAS. Time: Friday, Oct 20 @ 3:00 PM Location: EOAS 1050 (regular EOAS colloquium room) Title: Detection of large-scale cloud microphysical changes within a major shipping corridor after implementation of the International Maritime Organization 2020 fuel sulfur regulations Abstract: New regulations from the International Maritime Organization (IMO) limiting sulfur emissions from the shipping industry are expected to have large benefits in terms of public health but may come with an undesired side effect: acceleration of global warming as the climate-cooling effects of ship pollution on marine clouds are diminished. Previous work has found a substantial decrease in the detection of ship tracks in clouds after the IMO 2020 regulations went into effect, but changes in large-scale cloud properties have been more equivocal. Using a statistical technique that estimates counterfactual fields of what large-scale cloud and radiative properties within an isolated shipping corridor in the southeastern Atlantic would have been in the absence of shipping, we confidently detect a reduction in the magnitude of cloud droplet effective radius decreases within the shipping corridor and find evidence for a reduction in the magnitude of cloud brightening as well. The instantaneous radiative forcing due to aerosol?cloud interactions from the IMO 2020 regulations is estimated to be of order 1?W?m?2 within the shipping corridor, lending credence to global estimates of order 0.1?W?m?2 from climate models. Although the contribution to warming since 2020 is expected to be small globally, the effects may be much larger regionally in the north Atlantic and Pacific. In addition to their geophysical significance, our results also provide independent evidence for general compliance with the IMO 2020 regulations. Note: Colleagues are encouraged to attend the colloquium in person. However, attending online will be feasible. Please request the colloquium Zoom link from Zhaohua Wu (zwu at fsu.edu) if you plan to attend online. Cheers, Zhaohua -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 16 20:37:47 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 16 Oct 2023 20:37:47 -0400 Subject: [Eoas-seminar] Upcoming Thesis and Dissertation Defenses In-Reply-To: References: Message-ID: An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Wed Oct 18 07:08:34 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 18 Oct 2023 11:08:34 +0000 Subject: [Eoas-seminar] Reminder GFDI/DSC seminar including zoom with MIT's John Marshall Wed Oct 18 3:30 4th floor Dirac In-Reply-To: References: Message-ID: EOAS Colleagues, Just a friendly reminder that later today (330pm) is a seminar at Dirac (and by zoom) that is likely to be quite fascinating, including for those who have seen the movies (or read the books) 2001 and 2010..... Flyer attached, and here is the zoom link: https://fsu.zoom.us/j/94273595552 Bob -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Numerical exploration of the ocean circulation on icy moons.docx Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document Size: 327955 bytes Desc: Numerical exploration of the ocean circulation on icy moons.docx URL: From eoas-seminar at lists.fsu.edu Thu Oct 19 08:18:11 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 19 Oct 2023 12:18:11 +0000 Subject: [Eoas-seminar] TODAY - MET Seminar - Prof. Bradford Johnson (FSU Dept. of Geography) In-Reply-To: <0099A97B-80F0-4293-8A00-927B23F1F333@fsu.edu> References: <0099A97B-80F0-4293-8A00-927B23F1F333@fsu.edu> Message-ID: Dear all, This is a reminder of today?s MET seminar, given by Prof. Bradford Johnson of FSU?s Department of Geography. He will speak about ?Getting Particular about Urban Precipitation Enhancement?. Snacks at 3, talk at 3:15, in EOA 1044. See you there! Cheers, Allison -------------------------------------------- Allison A. Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean, and Atmospheric Science Florida State University awing at fsu.edu On Oct 13, 2023, at 10:28 AM, Allison Wing wrote: Dear all, Please join us next Thursday October 19 for a Meteorology seminar, given by Prof. Bradford Johnson of FSU?s Department of Geography. He will speak about ?Getting Particular about Urban Precipitation Enhancement?. (Abstract below). Prof. Johnson will be joining us in person in 1044. If you are interested in meeting with the speaker, please contact Allison Wing (awing at fsu.edu). He is available on Thursday afternoon before the seminar. **Graduate students, there will be a free lunch with the speaker at 12:30 PM; please contact Allison Wing to sign up.** DATE: Thursday October 19 SEMINAR TIME: Refreshments at 3 PM, Talk 3:15 PM - 4:15 PM. SEMINAR LOCATION: EOA 1044 (Speaker in person) SPEAKER: Prof. Bradford Johnson TITLE: Getting Particular about Urban Precipitation Enhancement ABSTRACT: The relationship between the growth of urbanization, the surrounding natural environment, and the corresponding atmospheric response has been studied extensively. Through the replacement of forests, agricultural lands, and other natural land cover with impervious surfaces such as roads, buildings, and supporting infrastructure, several environmental changes can be observed. The combination of unnatural surfaces, commercial and industrial activities, increased emissions from anthropogenic heating and cooling, and decreased evapotranspiration leads to discontinuities in the surface energy budget. This often results in retention of heat in urban areas compared to surrounding rural areas, giving rise to the urban heat island (UHI). Increased surface roughness via the urban form and the UHI alter precipitation distribution and intensity through increased surface-based mechanical and thermal buoyancy, respectively. Urban precipitation research methods often fall into two broad categories ? numerical simulations and climatological studies. High-resolution numerical models, such as the Weather Research and Forecasting model, are deployed to assess dynamic response to land cover change via case study or seasonal simulations at urban-resolving spatial resolutions of less than or equal to 3km. Climatological approaches leverage a combination of in situ, radar, satellite-borne, and rain gauge products to characterize urban precipitation distribution from historical observing networks. Efforts to translate the knowledge of urban precipitation modification to actionable science have had mixed results. The information needed by end users can vary according to the task or application. The current body of research has identified preferred regions of enhanced rainfall ? over and downwind of the city center ? however, these generalizations are not optimal for operational use. The identification of precipitation hotspots (or areas where heavier and/or more frequent precipitation are observed relative to neighboring subregions) would provide actionable information toward numerous decision-making processes. Through both climatological and modeling methods, an investigation of urban precipitation hotspots is conducted. This talk highlights a climatological approach and poses a couple of questions: 1) What areas within cities have higher convective precipitation compared to city wide observations? 2) What are the antecedent atmospheric conditions during extreme, isolated precipitation events? ?????????????????? Allison Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean and Atmospheric Science Florida State University awing at fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Thu Oct 19 11:38:43 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 19 Oct 2023 15:38:43 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Paula Reis Message-ID: "Numerical analysis of drainage in porous media using network models" Dr. Paula Reis PoreLab - Porous Media Laboratory Physics Department, University of Oslo 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: Zoom access is for 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 25, 2023, 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: Modeling fluid-fluid displacements in porous media has been an active research topic for the past few decades, with applications spanning multiple fields. In this endeavor, extensive efforts have been directed toward the development of models related to CO_2 storage in subsurface geological, oil recovery methods, drying, and water management in fuel cells. In this presentation, we narrow our focus to pore-scale models of drainage using network representations of the pore space. From invasion-percolation to more complex dynamic pore-network models (PNM), we explore ways to incorporate the complex interplay of capillary, viscous, and gravitational forces taking place in porous-media multiphase flows into simplified numerical models. Particularly, a method to effectively model the impact of film flow during slow drainage in granular porous media is introduced, and the related results ? along with comparisons with experimental observations ? are presented. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1755-colloquium-with-paula-reis-2023-10-25 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4198 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 Oct 19 21:58:56 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 20 Oct 2023 01:58:56 +0000 Subject: [Eoas-seminar] POSTPONED - EOAS Colloquium, Friday, Oct 20 @ 3:00 PM In-Reply-To: References: Message-ID: Dear all, The EOAS colloquium by Prof. Michael Diamond (FSU EOAS) scheduled for tomorrow (Friday October 20) has been postponed. It will instead be held *next* Friday, October 27 at 3 PM in EOA 1050. Apologies for the late notice, and we look forward to seeing you next Friday. Cheers, Allison -------------------------------------------- Allison A. Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean, and Atmospheric Science Florida State University awing at fsu.edu On Oct 16, 2023, at 8:50 AM, eoas-seminar--- via Eoas-seminar wrote: Dear colleagues, I am happy to announce that this week's speaker of the EOAS colloquium is Dr. Michael Diamond of EOAS. Time: Friday, Oct 20 @ 3:00 PM Location: EOAS 1050 (regular EOAS colloquium room) Title: Detection of large-scale cloud microphysical changes within a major shipping corridor after implementation of the International Maritime Organization 2020 fuel sulfur regulations Abstract: New regulations from the International Maritime Organization (IMO) limiting sulfur emissions from the shipping industry are expected to have large benefits in terms of public health but may come with an undesired side effect: acceleration of global warming as the climate-cooling effects of ship pollution on marine clouds are diminished. Previous work has found a substantial decrease in the detection of ship tracks in clouds after the IMO 2020 regulations went into effect, but changes in large-scale cloud properties have been more equivocal. Using a statistical technique that estimates counterfactual fields of what large-scale cloud and radiative properties within an isolated shipping corridor in the southeastern Atlantic would have been in the absence of shipping, we confidently detect a reduction in the magnitude of cloud droplet effective radius decreases within the shipping corridor and find evidence for a reduction in the magnitude of cloud brightening as well. The instantaneous radiative forcing due to aerosol?cloud interactions from the IMO 2020 regulations is estimated to be of order 1?W?m?2 within the shipping corridor, lending credence to global estimates of order 0.1?W?m?2 from climate models. Although the contribution to warming since 2020 is expected to be small globally, the effects may be much larger regionally in the north Atlantic and Pacific. In addition to their geophysical significance, our results also provide independent evidence for general compliance with the IMO 2020 regulations. Note: Colleagues are encouraged to attend the colloquium in person. However, attending online will be feasible. Please request the colloquium Zoom link from Zhaohua Wu (zwu at fsu.edu) if you plan to attend online. Cheers, Zhaohua _______________________________________________ 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 Oct 20 08:16:00 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 20 Oct 2023 12:16:00 +0000 Subject: [Eoas-seminar] MET Seminar - Thursday October 26 - Prof. Jimmy Booth (City College of New York) Message-ID: Dear all, Please join us next Thursday October 26 for a Meteorology seminar, given by Prof. Jimmy Booth of City College of New York. He will speak about "Understanding Weather Hazards in the Northeast United States Through Analysis of Cyclone Tracks?. (Abstract below). Prof. Booth will be joining us in person in 1044. If you are interesting in meeting with the speaker, please contact Rhys Parfitt (rparfitt at fsu.edu). He is available on Thursday afternoon before the seminar and on Friday morning. DATE: Thursday October 26 SEMINAR TIME: Refreshments at 3 PM, Talk 3:15 PM - 4:15 PM. SEMINAR LOCATION: EOA 1044 (Speaker in person) SPEAKER: Prof. Jimmy Booth TITLE: Understanding Weather Hazards in the Northeast United States Through Analysis of Cyclone Tracks ABSTRACT: This talk is primarily focused on cyclones, both extratropical and tropical. While 1-day operational forecasts of these storms can be quite good, there is still much to improve for medium-range forecasts and climate predictions, especially in terms of the hazards the storms may bring. With this in mind, the approach presented herein uses statistical analysis of historical events to determine if there are links between the synoptic-scale organization of the storms and the locations or traits of the hazards they produce. Specifically, I will report on the connections, or, in some cases lack thereof, between the paths taken by these storms and storm surge, precipitation, and high winds. The statistical results are interpreted through known physical processes that generate the hazards, with rationale provided on the patterns observed. After talking about cyclones identified based on the hazards they create, I will shift focus and discuss temporal clustering of cyclones. For this topic, I will review Rossby wave-breaking and the unique behavior of clustering at the storm track entrance and exit. Then, I will review what is known on clustering events that impact Western Europe and then detail what we have found for the Northeast US. ?????????????????? Allison Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean and Atmospheric Science Florida State University awing at fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 23 11:31:13 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 23 Oct 2023 15:31:13 +0000 Subject: [Eoas-seminar] EOAS Colloquium, Friday, Oct 27 @ 3:00 PM Message-ID: Dear colleagues, As you may notice, the EOAS colloquium originally scheduled for the last Friday will be held this coming Friday. The speaker is Dr. Michael Diamond of EOAS. Time: Friday, Oct 27 @ 3:00 PM Location: EOAS 1050 (regular EOAS colloquium room) Title: Detection of large-scale cloud microphysical changes within a major shipping corridor after implementation of the International Maritime Organization 2020 fuel sulfur regulations Abstract: New regulations from the International Maritime Organization (IMO) limiting sulfur emissions from the shipping industry are expected to have large benefits in terms of public health but may come with an undesired side effect: acceleration of global warming as the climate-cooling effects of ship pollution on marine clouds are diminished. Previous work has found a substantial decrease in the detection of ship tracks in clouds after the IMO 2020 regulations went into effect, but changes in large-scale cloud properties have been more equivocal. Using a statistical technique that estimates counterfactual fields of what large-scale cloud and radiative properties within an isolated shipping corridor in the southeastern Atlantic would have been in the absence of shipping, we confidently detect a reduction in the magnitude of cloud droplet effective radius decreases within the shipping corridor and find evidence for a reduction in the magnitude of cloud brightening as well. The instantaneous radiative forcing due to aerosol?cloud interactions from the IMO 2020 regulations is estimated to be of order 1?W?m?2 within the shipping corridor, lending credence to global estimates of order 0.1?W?m?2 from climate models. Although the contribution to warming since 2020 is expected to be small globally, the effects may be much larger regionally in the north Atlantic and Pacific. In addition to their geophysical significance, our results also provide independent evidence for general compliance with the IMO 2020 regulations. Note: Colleagues are encouraged to attend the colloquium in person. However, attending online will be feasible. Please request the colloquium Zoom link from Zhaohua Wu (zwu at fsu.edu) if you plan to attend online. Cheers, Zhaohua -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Tue Oct 24 00:36:24 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 24 Oct 2023 04:36:24 +0000 Subject: [Eoas-seminar] Hollander Lecture on climate change in Dept. of Statistics this Wednesday Message-ID: Colleagues, Please note this Hollander Distinguished seminar on climate change I was informed of yesterday that will be occurring this Wednesday at 11am in CSL1003: https://stat.fsu.edu/HollanderLecture Bob -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Oct 23 23:42:58 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 24 Oct 2023 03:42:58 +0000 Subject: [Eoas-seminar] Special Seminar - Monday October 30th, Professor Shoshiro Minobe, Hokkaido University Message-ID: Dear all, Please join for a special short seminar on Monday October 30th, by Professor Shoshiro Minobe from Hokkaido University, Japan, on "Long-term Seasonal Prediction of Tropical Cyclones for East Asia with Machine Learning" (abstract below). Shoshiro will be joining us in person here in EOAS and is available to meet throughout Monday - please contact me if you would like to meet with him. DATE: Monday October 30 SEMINAR TIME: Talk 2:15 PM - 3:00 PM. SEMINAR LOCATION: EOA 3067 (Speaker in person) SPEAKER: Professor Shoshiro Minobe TITLE: Long-term Seasonal Prediction of Tropical Cyclones for East Asia with Machine Learning ABSTRACT: Of all the ocean basins, the western North Pacific (WNP) produces the largest number of tropical cyclones. Significant efforts have been made to predict seasonal tropical cyclone activity for countries or specific land areas in the WNP, which is a more challenging task than forecasting for the basin as a whole. Here, a new seasonal prediction of tropical cyclone activity for the countries of the WNP is presented using a machine learning method. Taking advantage of this machine learning method, ocean heat content is used as the predictor data. It is found that a statistically significant prediction can be made more than a half-year lead time for Japan and China. Several climate modes in the Indian and Pacific Oceans contribute to the predictability, but rather than using climate mode indices, which are defined mainly using SSTs, prediction using subsurface temperatures exhibit better performance, highlighting the importance of exploiting the ocean's memory stored in the subsurface temperature. ------------------------------------------------ Rhys Parfitt Assistant Professor, EOAS -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Thu Oct 26 08:00:04 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 26 Oct 2023 12:00:04 +0000 Subject: [Eoas-seminar] MET Seminar - TODAY - Prof. Jimmy Booth (City College of New York) In-Reply-To: References: Message-ID: Dear all, This is a reminder of today?s MET seminar in EOA 1044, given by Prof. Jimmy Booth of City College of New York, who will speak about "Understanding Weather Hazards in the Northeast United States Through Analysis of Cyclone Tracks". Snacks at 3, talk at 3:15. See you there! Cheers, Allison -------------------------------------------- Allison A. Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean, and Atmospheric Science Florida State University awing at fsu.edu On Oct 20, 2023, at 8:16 AM, eoas-seminar--- via Eoas-seminar wrote: Dear all, Please join us next Thursday October 26 for a Meteorology seminar, given by Prof. Jimmy Booth of City College of New York. He will speak about "Understanding Weather Hazards in the Northeast United States Through Analysis of Cyclone Tracks?. (Abstract below). Prof. Booth will be joining us in person in 1044. If you are interesting in meeting with the speaker, please contact Rhys Parfitt (rparfitt at fsu.edu). He is available on Thursday afternoon before the seminar and on Friday morning. DATE: Thursday October 26 SEMINAR TIME: Refreshments at 3 PM, Talk 3:15 PM - 4:15 PM. SEMINAR LOCATION: EOA 1044 (Speaker in person) SPEAKER: Prof. Jimmy Booth TITLE: Understanding Weather Hazards in the Northeast United States Through Analysis of Cyclone Tracks ABSTRACT: This talk is primarily focused on cyclones, both extratropical and tropical. While 1-day operational forecasts of these storms can be quite good, there is still much to improve for medium-range forecasts and climate predictions, especially in terms of the hazards the storms may bring. With this in mind, the approach presented herein uses statistical analysis of historical events to determine if there are links between the synoptic-scale organization of the storms and the locations or traits of the hazards they produce. Specifically, I will report on the connections, or, in some cases lack thereof, between the paths taken by these storms and storm surge, precipitation, and high winds. The statistical results are interpreted through known physical processes that generate the hazards, with rationale provided on the patterns observed. After talking about cyclones identified based on the hazards they create, I will shift focus and discuss temporal clustering of cyclones. For this topic, I will review Rossby wave-breaking and the unique behavior of clustering at the storm track entrance and exit. Then, I will review what is known on clustering events that impact Western Europe and then detail what we have found for the Northeast US. ?????????????????? Allison Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean and Atmospheric Science Florida State University awing at fsu.edu _______________________________________________ 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 Thu Oct 26 15:51:32 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 26 Oct 2023 19:51:32 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Yuan-Nan Young Message-ID: "Stoichiometric Model for the Microtubule-mediated dynamics of centrosome and nucleus" Yuan-Nan Young New Jersey Institute 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: Zoom access is for 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, Nov 1, 2023, 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 Stoichiometric Model for the interaction of centrosomes with cortically anchored pulling motors, through their associated microtubules (MTs), has been applied to study key steps in the cell division such as spindle positioning and elongation. In this work we extend the original Stoichiometric Model to incorporate (1) overlap in the cortical motors, and (2) the dependence of velocity in the detachment rate of MTs from the cortical motors. We examine the effects of motor overlap and velocity-dependent detachment rate on the centrosome dynamics, such as the radial oscillation around the geometric center of the cell, the nonlinear nature (supercritical and subcritical Hopf bifurcation) of such oscillation, and the nonlinear orbital motions previously found for a centrosome. We explore biologically feasible parameter regimes where these effects may lead to significantly different centrosome/nucleus dynamics. Furthermore, we use this extended Stoichiometric Model to study the migration of a nucleus being positioned by a centrosome. This is joint work with Reza Farhadifar and Michael Shelley. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1760-colloquium-with-yuan-nan-young-2023-11-01 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4289 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 27 08:38:40 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 27 Oct 2023 12:38:40 +0000 Subject: [Eoas-seminar] Fw: EOAS Colloquium, Friday, Oct 27 @ 3:00 PM In-Reply-To: References: Message-ID: Dear colleagues, This is a friendly reminder that we will have an EOAS colloquium today. See you at colloquium time. Cheers, Zhaohua ________________________________ From: Zhaohua Wu Sent: Monday, October 23, 2023 11:31 AM To: eoas-seminar at lists.fsu.edu ; info at coaps.fsu.edu Subject: EOAS Colloquium, Friday, Oct 27 @ 3:00 PM Dear colleagues, As you may notice, the EOAS colloquium originally scheduled for the last Friday will be held this coming Friday. The speaker is Dr. Michael Diamond of EOAS. Time: Friday, Oct 27 @ 3:00 PM Location: EOAS 1050 (regular EOAS colloquium room) Title: Detection of large-scale cloud microphysical changes within a major shipping corridor after implementation of the International Maritime Organization 2020 fuel sulfur regulations Abstract: New regulations from the International Maritime Organization (IMO) limiting sulfur emissions from the shipping industry are expected to have large benefits in terms of public health but may come with an undesired side effect: acceleration of global warming as the climate-cooling effects of ship pollution on marine clouds are diminished. Previous work has found a substantial decrease in the detection of ship tracks in clouds after the IMO 2020 regulations went into effect, but changes in large-scale cloud properties have been more equivocal. Using a statistical technique that estimates counterfactual fields of what large-scale cloud and radiative properties within an isolated shipping corridor in the southeastern Atlantic would have been in the absence of shipping, we confidently detect a reduction in the magnitude of cloud droplet effective radius decreases within the shipping corridor and find evidence for a reduction in the magnitude of cloud brightening as well. The instantaneous radiative forcing due to aerosol?cloud interactions from the IMO 2020 regulations is estimated to be of order 1?W?m?2 within the shipping corridor, lending credence to global estimates of order 0.1?W?m?2 from climate models. Although the contribution to warming since 2020 is expected to be small globally, the effects may be much larger regionally in the north Atlantic and Pacific. In addition to their geophysical significance, our results also provide independent evidence for general compliance with the IMO 2020 regulations. Note: Colleagues are encouraged to attend the colloquium in person. However, attending online will be feasible. Please request the colloquium Zoom link from Zhaohua Wu (zwu at fsu.edu) if you plan to attend online. Cheers, Zhaohua -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Oct 27 09:24:05 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 27 Oct 2023 09:24:05 -0400 Subject: [Eoas-seminar] Fw: EOAS Colloquium, Friday, Oct 27 @ 3:00 PM In-Reply-To: References: Message-ID: Zhaohua, Is it OK to give me a link for this talk?? I didn't sleep well. I can keep awake if I have my computer, but in the lecture hall it would be a challenge. Cheers, Mark On 10/27/2023 8:38 AM, eoas-seminar--- via Eoas-seminar wrote: > Dear colleagues, > > This is a friendly reminder that we will have an EOAS colloquium > today.? See you at colloquium time. > > Cheers, > > Zhaohua > ------------------------------------------------------------------------ > *From:* Zhaohua Wu > *Sent:* Monday, October 23, 2023 11:31 AM > *To:* eoas-seminar at lists.fsu.edu ; > info at coaps.fsu.edu > *Subject:* EOAS Colloquium, Friday, Oct 27 @ 3:00 PM > Dear colleagues, > > As you may notice, the EOAS colloquium originally scheduled?for the > last Friday will be held this coming Friday. The speaker is Dr. > Michael Diamond of EOAS. > > *Time*: Friday, Oct 27 @ 3:00 PM > > *Location*: EOAS 1050 (regular EOAS colloquium room) > > Title: Detection of large-scale cloud microphysical changes within a > major shipping corridor after implementation of the International > Maritime Organization 2020 fuel sulfur regulations > > *Abstract*: New regulations from the International Maritime > Organization (IMO) limiting sulfur emissions from the shipping > industry are expected to have large benefits in terms of public health > but may come with an undesired side effect: acceleration of global > warming as the climate-cooling effects of ship pollution on marine > clouds are diminished. Previous work has found a substantial decrease > in the detection of ship tracks in clouds after the IMO 2020 > regulations went into effect, but changes in large-scale cloud > properties have been more equivocal. Using a statistical technique > that estimates counterfactual fields of what large-scale cloud and > radiative properties within an isolated shipping corridor in the > southeastern Atlantic would have been in the absence of shipping, we > confidently detect a reduction in the magnitude of cloud droplet > effective radius decreases within the shipping corridor and find > evidence for a reduction in the magnitude of cloud brightening as > well. The instantaneous radiative forcing due to aerosol?cloud > interactions from the IMO 2020 regulations is estimated to be of order > 1?W?m?2 within the shipping corridor, lending credence to global > estimates of order 0.1?W?m?2 from climate models. Although the > contribution to warming since 2020 is expected to be small globally, > the effects may be much larger regionally in the north Atlantic and > Pacific. In addition to their geophysical significance, our results > also provide independent evidence for general compliance with the IMO > 2020 regulations. > > *Note*: Colleagues are encouraged to attend the colloquium in person. > However, attending online will be feasible. Please request the > colloquium Zoom link from Zhaohua Wu (zwu at fsu.edu) if you plan to > attend online. > > Cheers, > > Zhaohua > > > > _______________________________________________ > 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 Oct 27 14:33:23 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 27 Oct 2023 18:33:23 +0000 Subject: [Eoas-seminar] Announcing the 2023 Werner A. Baum Lecture Message-ID: Dear all, I am pleased to announce the 2023 Werner A. Baum Lecture, to be held Friday December 1 at 3 PM in EOA 1050. The lecture will be given by renowned climate scientist Dr. Kerry Emanuel, professor emeritus at MIT. More information is on the attached flyer. For now, please save the date. We look forward to having a great turnout for what promises to be a fascinating lecture given by a prestigious speaker. Dr. Emanuel will be visiting EOAS Thursday November 30 - Friday December 1, and there will be opportunities for faculty, researchers, and students to meet with him. I will be arranging his schedule of meetings as we get closer to the date. Cheers, Allison ?????????????????? Allison Wing, Ph.D. Werner A. and Shirley B. Baum Professor Associate Professor, Department of Earth, Ocean and Atmospheric Science Florida State University awing at fsu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 2023 - Baum Lecture - Flyer.pdf Type: application/pdf Size: 318705 bytes Desc: 2023 - Baum Lecture - Flyer.pdf URL: From eoas-seminar at lists.fsu.edu Mon Oct 30 10:14:44 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 30 Oct 2023 14:14:44 +0000 Subject: [Eoas-seminar] REMINDER: Special Seminar TODAY 215PM EOA 3067 In-Reply-To: References: Message-ID: This is just a reminder of the special seminar today, by Professor Shoshiro Minobe, on seasonal prediction of tropical cyclones, at 215pm in EOA 3067. Please see below for details. Snacks and drinks will be provided. See you then. ________________________________ From: Eoas-seminar on behalf of eoas-seminar--- via Eoas-seminar Sent: Monday, October 23, 2023 11:42 PM To: eoas-seminar--- via Eoas-seminar Subject: [Eoas-seminar] Special Seminar - Monday October 30th, Professor Shoshiro Minobe, Hokkaido University Dear all, Please join for a special short seminar on Monday October 30th, by Professor Shoshiro Minobe from Hokkaido University, Japan, on "Long-term Seasonal Prediction of Tropical Cyclones for East Asia with Machine Learning" (abstract below). Shoshiro will be joining us in person here in EOAS and is available to meet throughout Monday - please contact me if you would like to meet with him. DATE: Monday October 30 SEMINAR TIME: Talk 2:15 PM - 3:00 PM. SEMINAR LOCATION: EOA 3067 (Speaker in person) SPEAKER: Professor Shoshiro Minobe TITLE: Long-term Seasonal Prediction of Tropical Cyclones for East Asia with Machine Learning ABSTRACT: Of all the ocean basins, the western North Pacific (WNP) produces the largest number of tropical cyclones. Significant efforts have been made to predict seasonal tropical cyclone activity for countries or specific land areas in the WNP, which is a more challenging task than forecasting for the basin as a whole. Here, a new seasonal prediction of tropical cyclone activity for the countries of the WNP is presented using a machine learning method. Taking advantage of this machine learning method, ocean heat content is used as the predictor data. It is found that a statistically significant prediction can be made more than a half-year lead time for Japan and China. Several climate modes in the Indian and Pacific Oceans contribute to the predictability, but rather than using climate mode indices, which are defined mainly using SSTs, prediction using subsurface temperatures exhibit better performance, highlighting the importance of exploiting the ocean's memory stored in the subsurface temperature. ------------------------------------------------ Rhys Parfitt Assistant Professor, EOAS -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ Eoas-seminar mailing list Eoas-seminar at lists.fsu.edu https://lists.fsu.edu/mailman/listinfo/eoas-seminar From eoas-seminar at lists.fsu.edu Mon Oct 30 11:42:47 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 30 Oct 2023 11:42:47 -0400 Subject: [Eoas-seminar] Upcoming Thesis and Dissertation Defenses Message-ID: As you are aware, we have an open house invitation for thesis and dissertation defenses.? This practice is followed to ensure we build a scholarly community among our student and faculty population.? In keeping with that mission, please consider joining us for the upcoming dissertation and thesis defenses, which are listed below.? In general, all defenses are posted to our public calendar , so you can always see what's coming around soon. *_01 Nov, rm 3067 EOA, 1 PM to 3 PM_* GLY Thesis Dfns--Clinton Kromhout Title:? An analysis of sinkhole morphometric orientations and lineament orientations in parts of Leon, Wakulla, Gadsden, and Jefferson Counties of Florida? [Major Prof, Dr. M Ye] Zoom ID: https://fsu.zoom.us/j/94500204980 _ *02 Nov, rm 6067 EOA, 3:30 PM to 4:30 PM*_ MET Thesis Dfns--Joanna Rodgers Title:? The Characterization of the Variability of the Wet Season Over Central America? [Major Prof, Dr. V Misra] Zoom ID: https://fsu.zoom.us/j/4654723819 _*07 Nov, rm 5067 EOA, 1 PM to 3 PM*_ MET Thesis Dfns--Christopher Grover Title:? Assessing Extreme Temperatures Through Stationary Statistical Methods on Non-Stationary Data? [Major Prof, Dr. Z Wu] -- *Jimmy Pastrano* */Coordinator of Graduate Studies/* */FSU Earth, Ocean, and Atmospheric Science/* *3008-C EOAS Bldg* *Tallahassee, FL 32306-4520*** -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Tue Oct 31 14:43:14 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 31 Oct 2023 18:43:14 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Seminar with Clayton Webster Message-ID: "Smoothing-based gradient descent for high-dimensional nonconvex optimization" Dr. Clayton Webster Oden Institute for Engineering & Computational Sciences, The University of Texas at Austin, Austin, TX Lirio AI Research & Behavioral Reinforcement and Learning Lab (BReLL), Lirio, LLC., Knoxville, TN NOTES: * 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. * IN-PERSON ATTENDANCE IS REQUESTED. * 499 DSL SEMINAR ROOM * Zoom access is intended for external 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 Tuesday, Nov 7, 2023, 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: This talk is focused on a class of smoothing-based gradient descent methods when applied to high-dimensional non-convex optimization problems. In particular, Gaussian smoothing is employed to define a nonlocal gradient that reduces high-frequency noise, small variations, and rapid fluctuations in the computation of the descent directions and additionally preserves the structure or features of the loss landscape. The amount of smoothing is controlled by the standard deviation of the Gaussian distribution, with larger values resulting in broader and more pronounced smoothing effects, while smaller values preserve more details of the function. The resulting Gaussian smoothing gradient descent (GSmoothGD) approach can facilitate gradient descent in navigating away from and/or avoiding local minima with increased ease, thereby substantially enhancing their overall performance when applied to non-convex optimization problems. As such, this work also provides rigorous theoretical error estimates on the GSmoothGD iterates rate of convergence, that exemplify the impact of underlying function convexity, smoothness, and input dimension, as well as the smoothing radius. We also present several strategies to combat the curse of dimensionality as well as updating the smoothing parameter, aimed at diminishing the impact of local minima, and therefore, rendering the attainment of global minima more achievable. Computational evidence complements the present theory and shows the e?ectiveness of the GSmoothGD method compared to other smoothing-based algorithms, momentum-based approaches, backpropagation-based techniques, and classical gradient-based algorithms from numerical optimization. Finally, applications to various personalization tasks using MNIST, CIFAR10, and Spotify datasets demonstrate the advantage of GSmoothGD when used to solve reinforcement learning problems. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1761-seminar-with-clayton-webster-2023-11-07 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 5286 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