From eoas-seminar at lists.fsu.edu Mon Jan 6 15:53:22 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 6 Jan 2025 20:53:22 +0000 Subject: [Eoas-seminar] =?utf-8?q?=5BSeminar-announce=5D_Scientific_Compu?= =?utf-8?q?ting_Colloquium_with_Marco_Larra=C3=B1aga?= Message-ID: "Direct and indirect feedbacks from mesoscale eddies to the atmosphere and sea surface waves" Marco Larra?aga Center for Ocean-Atmospheric Prediction Studies (COAPS), Florida State University (FSU) 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 in our 499 Dirac Science Library (DSL) Seminar Room. 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, Jan 8th, 2025, 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: Mesoscale eddies significantly influence ocean-atmosphere interactions through both direct and indirect feedback mechanisms. Thermal feedback refers to how mesoscale eddies induce spatial anomalies in sea surface temperature, which subsequently affect atmospheric processes such as wind patterns and air-sea heat fluxes. These sea surface temperature anomalies can drive local weather variability by altering the exchange of heat and momentum between the ocean and the atmosphere. In addition to thermal feedback, current feedback plays a crucial role in the energy dynamics of the ocean. This mechanism acts as an energy sink, transferring kinetic energy from the ocean's mesoscale features to the atmosphere, thus reducing eddy kinetic energy by approximately 30% in regions characterized by high mesoscale activity. In the Gulf of Mexico, a region with intense mesoscale dynamics influenced by the Loop Current and the eddies that the current detaches, the current feedback mechanism dampens mesoscale activity by roughly 20%. This energy reduction modifies the detachment statistics of Loop Current eddies, influencing their shedding frequency, size, and lifespan. Such alterations in eddy properties have broader implications for regional oceanic and atmospheric dynamics. Furthermore, mesoscale eddies indirectly impact the generation of sea surface waves. By inducing anomalies in the wind stress field, the current feedback leads to a tendency for increased wave heights. These findings underscore the importance of considering current feedback mechanisms in coupled ocean-sea surface waves-atmosphere simulations to enhance predictions of oceanic and atmospheric variability. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1852-colloquium-with-marco-larranaga-2025-01-08 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 5764 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 Jan 8 15:12:19 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 8 Jan 2025 15:12:19 -0500 Subject: [Eoas-seminar] Fwd: Carothers Lectures February 11 In-Reply-To: <96D50ACE-C92F-43B4-9242-D49265BD1113@fsu.edu> References: <96D50ACE-C92F-43B4-9242-D49265BD1113@fsu.edu> Message-ID: Our next lecture is on Tuesday, February 11, when Andrew Epstein (Professor and Chair of English, College of Arts and Sciences) and Tana Jean Welch (Associate Professor of Medical Humanities, College of Medicine) will engage us in a fascinating conversation about Poetry, Posthumanism, and Medicine! This is a Crossover Event with the Festival of the Creative Arts, so we are very excited!!! I've attached a flyer for the lecture to this email, and the direct link to the sign-up page for the luncheon is online here: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fforms.office.com%2Fr%2F3FqXuvSMjK&data=05%7C02%7Ceoas-seminar%40lists.fsu.edu%7Cf19eed1abe4b4724c0c608dd3020c2a2%7Ca36450ebdb0642a78d1b026719f701e3%7C0%7C0%7C638719639438073407%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=cu0bI18ufFsXm33XTVKAOcFoYDk2rKlAOlEWQ7%2BiFjw%3D&reserved=0 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: flyer_feb11.pdf Type: application/pdf Size: 828080 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Thu Jan 9 17:37:34 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 9 Jan 2025 22:37:34 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Jonathan Stewart Message-ID: "Statistical network analysis of networks with dependent edges" Jonathan Stewart Department of Statistics, 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 in our 499 Dirac Science Library (DSL) Seminar Room. 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, Jan 15th, 2025, 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: Network data are relational data that measure interactions or relationships between elements of a population of interest. Examples include social networks where individuals might relate to one another or interact with one another, as well as gene regulatory networks where genes can interact with one another. Network data are often represented as a graph with a set of nodes representing the elements of a population of interest and a set of edges which represent the relational data between elements of the population. Often, the complex mechanisms that give rise to the networks of our world induce dependence among edges in the network. A canonical example of this is transitivity in personal sentiment in friendship networks, where two people are more likely to be friends if they have a common friend. Statistical analyses of network data frequently are in the context of a single observation of the network, which in statistical language means we must perform inference based on a single collection of potentially dependent random variables, presenting numerous challenges to be overcome. This talk presents new developments in the statistical analysis of network data with dependent edges. Specific topics will include the estimation of statistical models for networks and the consistency of empirical distributions of sequences of graph statistics in contexts of networks with dependent edges. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1853-colloquium-with-jonathan-stewart-2025-01-15 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 5391 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 Jan 20 09:02:34 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 20 Jan 2025 14:02:34 +0000 Subject: [Eoas-seminar] Solid Earth Tectonics Seminar Monday 27th January 2:30 PM EOA 1050 Message-ID: Dear all, Dr. Sarah Trevino will be visiting us from Jan. 27th-28th as part of the faculty search for Solid Earth Tectonics. I am attaching the title and abstract of his talk. The talk is scheduled at 2:30 PM on 27th January 2025 (Monday) at EOA 1050. I hope you can attend the talk. Title: Unraveling Tectonic Histories: Integrating Magmatism, Deformation, and Geochronology Through Structural Petrochronology Abstract: The interplay between plate tectonics and the supercontinent cycle drives the construction, fragmentation, and destruction of continental crust through orogenesis, continental rifting, and subduction. These processes are fundamentally linked to magmatism and the formation of ductile shear zones, which play a critical role in crustal deformation. My research focuses on understanding these mechanisms by integrating petrology, structural geology, and geochronology?a methodology I describe as structural petrochronology. I investigate the timing and role of magmatism, metamorphism, deformation, and exhumation in crustal evolution, with a particular emphasis on high-temperature ductile shear zones and magmatic systems. Key contributions include characterizing melt storage and emplacement in silicic magma systems, developing titanite petrochronology to directly date deformation in shear zones, and studying water-assisted grain boundary migration in quartz to better understand ductile behavior. My work has provided insights into the spatial and temporal evolution of strain localization, the feedback between magmatism and deformation, and intra-arc transpression in the North American Cordillera. Future research aims to expand these approaches to the southern North American (Peninsular Range batholith, Mexico) and South American Cordilleras (Miocene plutonic belt, Chile) to address fundamental questions about deformation processes, magma emplacement, and plate reconstructions. Through interdisciplinary collaborations and community engagement, I seek to advance our understanding of the dynamic processes shaping Earth's lithosphere. Thank you Mainak Mookherjee Professor Florida State University Department of Earth, Ocean, and Atmospheric Science mmookherjee at fsu.edu o: (850) 644-1536 https://myweb.fsu.edu/mmookherjee/ eoas.fsu.edu linktr.ee/fsueoas ? ? -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: clip_image001.png Type: image/png Size: 19281 bytes Desc: not available URL: -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 01272025_SarahTrevino-EOASColloquium.pdf Type: application/pdf Size: 5915080 bytes Desc: not available URL: -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 1397 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Tue Jan 21 13:58:12 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Tue, 21 Jan 2025 18:58:12 +0000 Subject: [Eoas-seminar] EOAS seminar this Friday Message-ID: While you are preparing for the snowstorm, the colloquium committee would like to invite you to a seminar this Friday 3-4pm in Room 1040 (please note the room change). The speaker is Dr. Marco Larranaga Fu in FSU Center for Ocean-Atmospheric Prediction Studies (COAPS). Below are the seminar title and abstract. Look forward to seeing you at the seminar, and stay WARM! Seminar Title: Exploring Feedback Mechanisms Between Ocean, Atmosphere, and Sea Surface Waves at the Mesoscale. Seminar Abstract: Mesoscale eddies significantly influence ocean-atmosphere interactions through both direct and indirect feedback mechanisms. Thermal feedback refers to how mesoscale eddies induce spatial anomalies in sea surface temperature, modulating the exchange of heat and momentum between the ocean and the atmosphere and driving local weather variability. In addition to thermal feedback, current feedback plays a crucial role in the energy dynamics of the ocean. This mechanism acts as an energy sink, transferring kinetic energy from the ocean's mesoscale features to the atmosphere, thus reducing eddy kinetic energy by approximately 30% in regions characterized by high mesoscale activity. In the Gulf of Mexico, a region with intense mesoscale dynamics influenced by the Loop Current and the eddies that the current detaches, the current feedback mechanism dampens mesoscale activity by roughly 20%. This energy reduction modifies the detachment statistics of Loop Current eddies, influencing their shedding frequency, size, and lifespan. Such alterations in eddy properties have broader implications for regional oceanic and atmospheric dynamics. Furthermore, mesoscale eddies indirectly impact the generation of sea surface waves. By inducing anomalies in the wind stress field, the current feedback leads to a tendency for increased wave heights. These findings underscore the importance of considering current feedback mechanisms in coupled ocean-sea surface waves-atmosphere simulations to enhance predictions of oceanic and atmospheric variability. -------------- Ming Ye, Ph.D. Professor in Hydrogeology Department of Earth, Ocean, and Atmospheric Science Office: 3015 EOAS Building (1011 Academic Way) Phone: 850-645-4987 Department of Scientific Computing Office: 489 Dirac Science Library Phone: 850-644-4587 Florida State University Tallahassee, FL 32306-4520 Cell: 850-567-4488 Email: mye at fsu.edu http://earth.eoas.fsu.edu/~mye/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Jan 24 17:29:31 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 24 Jan 2025 22:29:31 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Malbor Asllani Message-ID: "Patterns, structure and dynamics of non-normal networked systems" Malbor Asllani Department of Mathematics, Florida State University (FSU) 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 in our 499 Dirac Science Library (DSL) Seminar Room. 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, Jan 29, 2025, 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 study delves into the complex dynamics of non-normal networks, highlighting their profound implications for system stability and the emergence of phenomena such as leader nodes, synchronization, and chimera states. By introducing a novel analytical framework, the research distinguishes the nuanced behaviors of non-normal networks from their normal counterparts, emphasizing non-normality's pivotal role in shaping network resilience and adaptability. Through a combination of rigorous mathematical modeling and empirical analysis, we uncover how non-normal structures amplify transient responses, leading to unexpected behaviors under perturbations. Notably, our findings reveal the critical influence of non-normality in the formation of leader nodes that guide network dynamics, facilitate enhanced synchronization in systems where coherence was previously challenging, and promote the emergence of chimera states, characterized by coexisting synchronized and desynchronized dynamics. These insights challenge traditional views in network theory and provide groundbreaking perspectives on designing and controlling resilient networked systems across various disciplines, from biological networks to technological and social systems. By elucidating the intricate ways non-normality influences the emergence and stability of complex network states, our work advances understanding in complex systems, underscoring the significance of non-normal interactions in predicting and managing networked systems' behavior. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1854-colloquium-with-malbor-asllani-2025-01-29 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 5521 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 Sun Jan 26 11:25:45 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Sun, 26 Jan 2025 16:25:45 +0000 Subject: [Eoas-seminar] Solid Earth Tectonics Seminar Monday 27th January 2:30 PM EOA 1050 Message-ID: Dear all, Dr. Sarah Trevino will be visiting us from Jan. 27th-28th as part of the faculty search for Solid Earth Tectonics. I am attaching the title and abstract of his talk. The talk is scheduled at 2:30 PM on 27th January 2025 (Monday) at EOA 1050. I hope you can attend the talk. Title: Unraveling Tectonic Histories: Integrating Magmatism, Deformation, and Geochronology Through Structural Petrochronology Abstract: The interplay between plate tectonics and the supercontinent cycle drives the construction, fragmentation, and destruction of continental crust through orogenesis, continental rifting, and subduction. These processes are fundamentally linked to magmatism and the formation of ductile shear zones, which play a critical role in crustal deformation. My research focuses on understanding these mechanisms by integrating petrology, structural geology, and geochronology?a methodology I describe as structural petrochronology. I investigate the timing and role of magmatism, metamorphism, deformation, and exhumation in crustal evolution, with a particular emphasis on high-temperature ductile shear zones and magmatic systems. Key contributions include characterizing melt storage and emplacement in silicic magma systems, developing titanite petrochronology to directly date deformation in shear zones, and studying water-assisted grain boundary migration in quartz to better understand ductile behavior. My work has provided insights into the spatial and temporal evolution of strain localization, the feedback between magmatism and deformation, and intra-arc transpression in the North American Cordillera. Future research aims to expand these approaches to the southern North American (Peninsular Range batholith, Mexico) and South American Cordilleras (Miocene plutonic belt, Chile) to address fundamental questions about deformation processes, magma emplacement, and plate reconstructions. Through interdisciplinary collaborations and community engagement, I seek to advance our understanding of the dynamic processes shaping Earth's lithosphere. ? Thank you Mainak Mookherjee Professor Florida State University Department of Earth, Ocean, and Atmospheric Science mmookherjee at fsu.edu o: (850) 644-1536 https://myweb.fsu.edu/mmookherjee/ eoas.fsu.edu linktr.ee/fsueoas ? -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 01272025_SarahTrevino-EOASColloquium.pdf Type: application/pdf Size: 5915080 bytes Desc: not available URL: -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: clip_image001.png Type: image/png Size: 19281 bytes Desc: not available URL: -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 1397 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Sun Jan 26 20:21:13 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 27 Jan 2025 01:21:13 +0000 Subject: [Eoas-seminar] Pete Adams seminar - January 31 @ 3 PM Message-ID: Dear all, Please join us this Friday, January 31 at 3 PM in EOAS 1044 for the departmental colloquium. The speaker will be Dr. Pete Adams from the University of Florida. Pete is a geomorphologist with a particular focus on Florida landscapes and coastal processes. Pete's original visit was cancelled due to Hurricane Helene. His talk is entitled (abstract attached): "Uplift of the Florida Peninsula, Reversal of the St. Johns River, and the Origin of Cape Canaveral" I know we have a very busy talk schedule, but I really do hope you will join us on Friday. Please let me know if you are interested in meeting with Pete 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: -------------- next part -------------- A non-text attachment was scrubbed... Name: Adams Seminar .pdf Type: application/pdf Size: 201256 bytes Desc: Adams Seminar .pdf URL: From eoas-seminar at lists.fsu.edu Thu Jan 30 09:40:32 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 30 Jan 2025 14:40:32 +0000 Subject: [Eoas-seminar] MET Seminar - Tuesday February 4 - Dr. Bor-Ting Jong (Princeton University/NOAA GFDL) Message-ID: Dear all, We are pleased to announce our first Meteorology Seminar of the semester! Please join us for next week?s MET seminar on Tuesday February 4 at 3 PM, which will be given by Dr. Bor-Ting Jong of Princeton University/NOAA GFDL. Dr. Jong will speak about "Increases in Extreme Precipitation over the Northeast United States using 25-km GFDL SPEAR Ensemble? (abstract below). Dr. Jong will be joining us virtually, but we will still gather together in EOA 1044. If you have a medical excuse or other approved work off-campus, please contact Allison Wing (awing at fsu.edu) for the Zoom link. Otherwise we look forward to seeing everyone in 1044. Please join a few minutes early for refreshments before the start of the seminar. Dr. Jong is also available for individual Zoom meetings on Tuesday. Her research focuses on regional hydro climate variability and extremes, and their connections to the large-scale atmospheric circulation from sub seasonal to decadal and longer time scales. If you?d like to meet her, please contact Allison Wing. DATE: Tuesday February 4 SEMINAR TIME: 3-4 PM, please join early for refreshments SEMINAR LOCATION: EOA 1044 (Speaker remote) SPEAKER: Dr. Bor-Ting Jong TITLE: Increases in Extreme Precipitation over the Northeast United States using 25-km GFDL SPEAR Ensemble ABSTRACT: Simulating regional extreme precipitation remains challenging, partially limited by climate models? horizontal resolution. Our recent work, using the ensembles generated by GFDL (Geophysical Fluid Dynamics Laboratory) SPEAR (Seamless System for Prediction and EArth System Research) models, shows that a model with 25 km horizontal resolution facilitates a much more realistic simulation of extreme precipitation than comparable models with 50 or 100 km resolution. We take the Northeast United States as an example as the Northeast US has faced the most rapidly increasing occurrences of extreme precipitation within the US in the past few decades. The 25-km GFDL-SPEAR ensemble simulates the trend of Northeast US extreme precipitation quantitatively consistent with observed trend over recent decades. We therefore use the same model for assessments of meteorological factors, including atmospheric rivers (AR) and tropical cyclone (TC)-related events, that have contributed to the trend of extreme precipitation over the Northeast US and future projections. I will show that the increasing extreme precipitation over the Northeast US since the 1990s were mainly linked to TC-related events, especially extratropical transitions. In the future warming climate, both AR-related and TC-related extreme precipitation over the Northeast US are projected to increase, even though the numbers of TC in the North Atlantic are projected to decrease in the 25-km GFDL-SPEAR SSP5-8.5 simulations. ?????????????????? 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 Jan 31 08:11:04 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 31 Jan 2025 13:11:04 +0000 Subject: [Eoas-seminar] Colloquium today @ 3 PM - Pete Adams - University of Florida In-Reply-To: References: Message-ID: Dear all, Please join us today at 3 PM in EOAS 1044 for Pete Adam's seminar entitled: Uplift of the Florida Peninsula, Reversal of the St. Johns River, and the Origin of Cape Canaveral Sincerely, Maya ________________________________ From: Eoas-seminar on behalf of eoas-seminar--- via Eoas-seminar Sent: Sunday, January 26, 2025 8:21 PM To: eoas-seminar--- via Eoas-seminar Subject: [Eoas-seminar] Pete Adams seminar - January 31 @ 3 PM Dear all, Please join us this Friday, January 31 at 3 PM in EOAS 1044 for the departmental colloquium. The speaker will be Dr. Pete Adams from the University of Florida. Pete is a geomorphologist with a particular focus on Florida landscapes and coastal processes. Pete's original visit was cancelled due to Hurricane Helene. His talk is entitled (abstract attached): "Uplift of the Florida Peninsula, Reversal of the St. Johns River, and the Origin of Cape Canaveral" I know we have a very busy talk schedule, but I really do hope you will join us on Friday. Please let me know if you are interested in meeting with Pete 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: -------------- next part -------------- A non-text attachment was scrubbed... Name: Adams Seminar .pdf Type: application/pdf Size: 201256 bytes Desc: Adams Seminar .pdf 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 Fri Jan 31 09:37:56 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 31 Jan 2025 14:37:56 +0000 Subject: [Eoas-seminar] COAPS Short Seminar Series Message-ID: COAPS Short Seminar Series 11:00 AM Feb. 3rd 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. A Multi-observation Analysis of Salinity Diffusion into the Mixed Layer in the Bay of Bengal By Sthitapragya Ray Description: Multi-observation 3-dimensional datasets (ARMOR3D and GLOBCURRENT) were used to compute the mixed layer salinity budget over the Bay of Bengal (BoB) and the residual of the budget was used to compute the eddy diffusivity of salinity at the base of the mixed layer. The estimated diffusivity values were subsequently used to compute the contribution of vertical diffusion of salinity (VDIFF) to the salinity tendency (ST) in the mixed layer. Diffusivity values of the order of 10^(?4) ?^2?? were observed over most of the basin, and the resulting VDIFF was identified as a leading order contributor to the salinity budget, with mean horizontal advection (MHADV) being the only other comparable contributor. The salinity variability within the BoB was observed to be dominated by the fresh water influx during summer monsoon and post-monsoon seasons and the subsequent advection of these waters along the western margin of the Bay by the East India Coastal Current (EICC). VDIFF counteracted the freshening effect of the MHADV of this freshwater, and the long-term (seasonal) variability of VDIFF was coherent with the vertical gradient of salinity, while its short-term (intraseasonal) variability was coherent with diffusivity variations. Diffusivity was observed to be primarily determined by the static stability (measured in terms of the squared Brunt-V?is?l? frequency at mixed layer depth). Although surface windstress and buoyancy flux (which generate turbulent kinetic energy) also played an important role in determining diffusivity, as illustrated by a multiple linear regression model. On the dynamics of the subtropical mode water from an ensemble view By Luolin Sun Description: The subtropical mode water (STMW) experiences a seasonal cycle of formation and erosion, and it has significant impact on the atmosphere-ocean interactions and the structure of the upper ocean. We here discuss such mechanisms from a dynamical perspective. We employ an ensemble of 48 North Atlantic Ocean simulations at mesoscale permitting resolution (1/12 degree) and characterize the STMW by a pool of low Ertel potential vorticity (PV) obtained for the ensemble-mean flow. This ensemble-based approach offers us the advantage of investigating the temporal variability of the STMW which is quantified by the annual evolution of the PV pool. Our finding reveals that the seasonal cycle of the STMW is mainly governed by the ensemble-mean flow and the eddies play an secondary role in the PV dynamics. 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. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4932 bytes Desc: not available URL: From eoas-seminar at lists.fsu.edu Fri Jan 31 12:08:01 2025 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 31 Jan 2025 17:08:01 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Adrian Barbu Message-ID: "Scalable Learning with Probabilistic PCA" Adrian Barbu Department of Statistics, 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 in our 499 Dirac Science Library (DSL) Seminar Room. 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, Feb 5, 2025, 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: Deep neural networks have drawn much attention due to their success in various vision tasks, including classification. Class Incremental Leaning is a paradigm where instances from new object classes are added sequentially. Traditional methods are faced with catastrophic forgetting, where the updated model forgets the old classes and focuses only on the new classes. In this work, we introduce a framework called incremental PPCA for class incremental learning. It uses a self-supervised pre-trained feature extractor to obtain meaningful features and trains Probabilistic PCA models on the extracted features for each class separately. The Mahalanobis distance is used to obtain the classification result, and an equivalent equation is derived to make the approach computationally affordable. Experiments on standard and large datasets show that the proposed approach outperforms existing state-of-the-art incremental learning methods by a large margin. The fact that the model is trained on each class separately makes it applicable to training on very large datasets such as the whole ImageNet with more than 10,000 classes. To better handle so many classes, we take inspiration from our understanding of the human hierarchical cognition models and propose a framework called Hierarchical PPCA for image classification. The framework uses probabilistic PCA models as basic classification units and groups the image classes into a smaller number of super-classes. During classification, Hierarchical PPCA assigns a sample to a small number of most likely super-classes, and restricts the image classification to the image classes corresponding to these super-classes. Experiments on ImageNet indicate the hierarchical classifier can achieve a 4-16 times speedup compared to a standard classifier without any loss in accuracy. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1856-colloquium-with-adrian-barbu-2025-02-5 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... 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