From eoas-seminar at lists.fsu.edu Fri Dec 1 08:01:04 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 1 Dec 2023 13:01:04 +0000 Subject: [Eoas-seminar] TODAY: 3 PM - Baum Lecture by Dr. Kerry Emanuel (MIT) In-Reply-To: References:

Message-ID: Just a final reminder of the Baum lecture today at 3 pm in EOA 1050! If you need a Zoom link contact Allison Wing (awing at fsu.edu) before 12:30 pm. Otherwise, see you in 1050! 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 Nov 27, 2023, at 8:03 AM, eoas-seminar--- via Eoas-seminar wrote: Dear all, This is a reminder to please join us for the Werner A. Baum Lecture this Friday December 1 at 3 PM in EOA 1050, to be given by distinguished climate scientist Dr. Kerry Emanuel, professor emeritus at MIT. See the attached flyer for more information. Dr. Emanuel will present ?What Sets the Climatology of Severe Thunderstorms? (abstract below). While this is intended as an in-person event, if you have a medical excuse or approved work off campus, please contact Allison Wing (awing at fsu.edu) for a Zoom link. DATE: Friday December 1 TIME: 3-4 PM LOCATION: EOA 1050 SPEAKER: Dr. Kerry Emanuel (MIT) TITLE: What Sets the Climatology of Severe Thunderstorms ABSTRACT: Severe convective storms are a significant source of weather-related losses and injury, worldwide. Yet very little is known about what sets their climatology in the current climate, and why climate models generally indicate increased severe storm activity as the climate warms. In this talk, I will focus on one of the main ingredients in severe convective storms: Convective Available Potential Energy (CAPE). The global climatology of CAPE differs significantly from that of deep convection in general; for example, high CAPE values are quite rare over the ocean. Using both an observational analysis and a 1-D model coupled to a model of soil and vegetation, I will argue that high CAPE results when air masses that have been significantly modified by passage over dry, lightly vegetated soils are advected over moist soils with moderate to extensive vegetation. This suggests that widespread agricultural practices may significantly modify the climatology of severe convection and points to how climate change might affect the prevalence and intensity of severe convective storms. -------------------------------------------- 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 _______________________________________________ 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: -------------- 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 Fri Dec 1 17:10:26 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 1 Dec 2023 22:10:26 +0000 Subject: [Eoas-seminar] [Seminar-announce] Scientific Computing Colloquium with Carlos Borges Message-ID: "Inverse Scattering Problems: A framework for high-resolution parameter reconstruction" Carlos Borges College of Sciences, University of Central Florida (UCF) 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, Dec 06, 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: We present a fast, accurate, and stable algorithm for the solution of the inverse acoustic scattering problems. Given full aperture far field measurements of the scattered field for multiple angles of incidence, we use a continuation-in-frequency scheme based in Chen's method of recursive linearization to reconstruct unknown parameters of a domain with high resolution in a fully nonlinear regime. Despite the fact that the underlying optimization problem is formally ill-posed, non-linear, and non-convex, our scheme requires only the solution of a sequence of linear least squares problems at successively higher frequencies. By seeking a suitably band-limited approximation of the parameters, the solution of each iteration of the nonlinear optimization method is well-conditioned and involves the solution of forward scattering problems, for which we employ fast analysis-based solvers to solve integral representations to a PDE. We present compelling results obtained through the application of our framework to various manifestations of the inverse scattering problem, encompassing both penetrable and impenetrable obstacles in two dimensions. Our findings underscore the adaptability of the framework, showcasing its potential extension to three-dimensional problems?an exciting avenue for future exploration in our ongoing research endeavors. Additional colloquium details can be found here, https://www.sc.fsu.edu/news-and-events/colloquium/1765-colloquium-with-carlos-borges-2023-12-06 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4652 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 Dec 1 23:41:30 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Sat, 2 Dec 2023 04:41:30 +0000 Subject: [Eoas-seminar] This FRIDAY December 1, 3 PM - Baum Lecture by Dr. Kerry Emanuel (MIT) In-Reply-To: References:

Message-ID: Thank you everyone that joined us for the Baum Lecture this afternoon. If you missed it and would like the link to the Zoom recording, please contact Allison Wing (awing at fsu.edu). -------------------------------------------- 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 Nov 27, 2023, at 8:03 AM, Allison Wing wrote: Dear all, This is a reminder to please join us for the Werner A. Baum Lecture this Friday December 1 at 3 PM in EOA 1050, to be given by distinguished climate scientist Dr. Kerry Emanuel, professor emeritus at MIT. See the attached flyer for more information. Dr. Emanuel will present ?What Sets the Climatology of Severe Thunderstorms? (abstract below). While this is intended as an in-person event, if you have a medical excuse or approved work off campus, please contact Allison Wing (awing at fsu.edu) for a Zoom link. DATE: Friday December 1 TIME: 3-4 PM LOCATION: EOA 1050 SPEAKER: Dr. Kerry Emanuel (MIT) TITLE: What Sets the Climatology of Severe Thunderstorms ABSTRACT: Severe convective storms are a significant source of weather-related losses and injury, worldwide. Yet very little is known about what sets their climatology in the current climate, and why climate models generally indicate increased severe storm activity as the climate warms. In this talk, I will focus on one of the main ingredients in severe convective storms: Convective Available Potential Energy (CAPE). The global climatology of CAPE differs significantly from that of deep convection in general; for example, high CAPE values are quite rare over the ocean. Using both an observational analysis and a 1-D model coupled to a model of soil and vegetation, I will argue that high CAPE results when air masses that have been significantly modified by passage over dry, lightly vegetated soils are advected over moist soils with moderate to extensive vegetation. This suggests that widespread agricultural practices may significantly modify the climatology of severe convection and points to how climate change might affect the prevalence and intensity of severe convective storms. -------------------------------------------- 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 <2023 - Baum Lecture - Flyer.pdf> -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Dec 4 10:41:39 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 4 Dec 2023 15:41:39 +0000 Subject: [Eoas-seminar] MET Seminar - Thursday December 7 - Dr. Clare Singer (Lamont-Doherty Earth Observatory/Boston College) Message-ID: Dear all, Please join us this Thursday December 7 for the last Meteorology seminar of the semester, given by Dr. Clare Singer of Lamont-Doherty Earth Observatory and Boston College. She will speak about "Stratocumulus-cumulus transitions in present and future climates? (abstract below). Dr. Singer will be joining us virtually but we will still gather in person in 1044. If you have a medical excuse or approved work off campus, please contact Allison Wing for the Zoom link. Otherwise, we will see you in 1044. If you are interested in meeting with the speaker via Zoom, please contact Allison Wing (awing at fsu.edu). DATE: Thursday December 7 SEMINAR TIME: Refreshments at 3 PM, Talk 3:15 - 4:15 PM SEMINAR LOCATION: EOA 1044 (Speaker remote) SPEAKER: Dr. Clare Singer TITLE: Stratocumulus-cumulus transitions in present and future climates ABSTRACT: Stratocumulus clouds occurring over eastern subtropical ocean basins dominate climatological cloudiness at low latitudes and are important for Earth?s global radiative energy budget. Further west, there is an observed transition to scattered cumulus cloud cover, the so-called stratocumulus-cumulus transition (SCT). To explore the mechanisms driving the SCT, I will present an extension of the traditional bulk boundary layer model for stratocumulus-topped boundary layers that explicitly considers cloud decoupling from the surface and subsequent cloud fraction reduction. I will then use this model to consider cloud decoupling and breakup in response to increased CO2 concentrations in an idealized two-column framework. Finally, I embed this representation of decoupling-induced cloud breakup in CESM2 to explore the direct effect of CO2 on low cloud cover while retaining a realistic representation of the large-scale circulation and thermodynamic state of the free-troposphere. I will show preliminary results from these experiments and discuss the implications of these results for nonlinear cloud feedbacks and direct cloud adjustments. ?????????????????? 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 Dec 7 08:32:59 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 7 Dec 2023 13:32:59 +0000 Subject: [Eoas-seminar] TODAY: MET Seminar - Dr. Clare Singer (Lamont-Doherty Earth Observatory/Boston College) In-Reply-To: References: Message-ID: Dear all, Just a reminder of our last MET seminar of the semester TODAY, given by Dr. Clare Singer who will speak about ?Stratocumulus-cumulus transitions in present and future climates?. Snacks at 3, talk at 3:15 in 1044. 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 Dec 4, 2023, at 10:41 AM, eoas-seminar--- via Eoas-seminar wrote: Dear all, Please join us this Thursday December 7 for the last Meteorology seminar of the semester, given by Dr. Clare Singer of Lamont-Doherty Earth Observatory and Boston College. She will speak about "Stratocumulus-cumulus transitions in present and future climates? (abstract below). Dr. Singer will be joining us virtually but we will still gather in person in 1044. If you have a medical excuse or approved work off campus, please contact Allison Wing for the Zoom link. Otherwise, we will see you in 1044. If you are interested in meeting with the speaker via Zoom, please contact Allison Wing (awing at fsu.edu). DATE: Thursday December 7 SEMINAR TIME: Refreshments at 3 PM, Talk 3:15 - 4:15 PM SEMINAR LOCATION: EOA 1044 (Speaker remote) SPEAKER: Dr. Clare Singer TITLE: Stratocumulus-cumulus transitions in present and future climates ABSTRACT: Stratocumulus clouds occurring over eastern subtropical ocean basins dominate climatological cloudiness at low latitudes and are important for Earth?s global radiative energy budget. Further west, there is an observed transition to scattered cumulus cloud cover, the so-called stratocumulus-cumulus transition (SCT). To explore the mechanisms driving the SCT, I will present an extension of the traditional bulk boundary layer model for stratocumulus-topped boundary layers that explicitly considers cloud decoupling from the surface and subsequent cloud fraction reduction. I will then use this model to consider cloud decoupling and breakup in response to increased CO2 concentrations in an idealized two-column framework. Finally, I embed this representation of decoupling-induced cloud breakup in CESM2 to explore the direct effect of CO2 on low cloud cover while retaining a realistic representation of the large-scale circulation and thermodynamic state of the free-troposphere. I will show preliminary results from these experiments and discuss the implications of these results for nonlinear cloud feedbacks and direct cloud adjustments. ?????????????????? 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 Mon Dec 11 12:18:11 2023 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 11 Dec 2023 12:18:11 -0500 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. *_15 Dec, rm 3067 EOA, 10 AM to 11 AM_* GLY MS Prospectus Dfns--Jordan Hopwood Title:? Influence of Land Use on Microplastic Concentrations in Urban and Rural Lakes and Springs? [Major Prof, Dr. M Ye] -- *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: