From eoas-seminar at lists.fsu.edu Wed Sep 4 05:23:43 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 4 Sep 2019 09:23:43 +0000 Subject: [Eoas-seminar] EOAS Colloquium Speaker this Friday 3:30 CAR 101 Message-ID: Please join us for the first speaker of the EOAS Colloquium series this Friday at 3:30 in CAR 101: Dr. Laura Waters of Sonoma State University "Effects of differentiation and degassing on magmatic oxidation states across tectonic settings." Abstract: Earth is unique for having an oxygenated atmosphere, liquid H2O and high standing, silica rich continents. While it is largely agreed upon that continents are created in subduction zones, there is little agreement on the magmatic processes responsible for calc-alkaline volcanism (i.e., the origin of Earth?s continents). Here, I evaluate the roles of intensive (e.g., pressure) and compositional variables (e.g., H2O) that may lead to calc-alkaline volcanism using a large dataset compiled from the literature. From that dataset, it is apparent that oxygen fugacity (fO2) plays a critical role in the formation of the calc-alkaline liquid line of descent. The potential effects of degassing and differentiation on magmatic oxygen fugacity are additionally explored to determine if the oxygen fugacity of any melt is related to its parent magma and source or if the oxygen fugacity is a function of secondary petrogenetic effects (e.g., crystallization and degassing). -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Wed Sep 4 08:09:06 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Wed, 4 Sep 2019 12:09:06 +0000 Subject: [Eoas-seminar] EOAS Colloquium Speaker this Friday 3:30 CAR 101 In-Reply-To: References: Message-ID: If you would like to meet with the speaker please email Jeremy Owens (jdowens at fsu.edu). From: Eoas-seminar On Behalf Of eoas-seminar--- via Eoas-seminar Sent: Wednesday, September 4, 2019 5:24 AM To: EOAS seminar Subject: [Eoas-seminar] EOAS Colloquium Speaker this Friday 3:30 CAR 101 Please join us for the first speaker of the EOAS Colloquium series this Friday at 3:30 in CAR 101: Dr. Laura Waters of Sonoma State University "Effects of differentiation and degassing on magmatic oxidation states across tectonic settings." Abstract: Earth is unique for having an oxygenated atmosphere, liquid H2O and high standing, silica rich continents. While it is largely agreed upon that continents are created in subduction zones, there is little agreement on the magmatic processes responsible for calc-alkaline volcanism (i.e., the origin of Earth?s continents). Here, I evaluate the roles of intensive (e.g., pressure) and compositional variables (e.g., H2O) that may lead to calc-alkaline volcanism using a large dataset compiled from the literature. From that dataset, it is apparent that oxygen fugacity (fO2) plays a critical role in the formation of the calc-alkaline liquid line of descent. The potential effects of degassing and differentiation on magmatic oxygen fugacity are additionally explored to determine if the oxygen fugacity of any melt is related to its parent magma and source or if the oxygen fugacity is a function of secondary petrogenetic effects (e.g., crystallization and degassing). -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Sep 6 09:38:31 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 6 Sep 2019 13:38:31 +0000 Subject: [Eoas-seminar] Reminder TODAY - EOAS Colloquium Speaker this Friday 3:30 CAR 101 Message-ID: Please join us for the first speaker of the EOAS Colloquium series Today at 3:30 in CAR 101: Dr. Laura Waters of Sonoma State University "Effects of differentiation and degassing on magmatic oxidation states across tectonic settings." Abstract: Earth is unique for having an oxygenated atmosphere, liquid H2O and high standing, silica rich continents. While it is largely agreed upon that continents are created in subduction zones, there is little agreement on the magmatic processes responsible for calc-alkaline volcanism (i.e., the origin of Earth?s continents). Here, I evaluate the roles of intensive (e.g., pressure) and compositional variables (e.g., H2O) that may lead to calc-alkaline volcanism using a large dataset compiled from the literature. From that dataset, it is apparent that oxygen fugacity (fO2) plays a critical role in the formation of the calc-alkaline liquid line of descent. The potential effects of degassing and differentiation on magmatic oxygen fugacity are additionally explored to determine if the oxygen fugacity of any melt is related to its parent magma and source or if the oxygen fugacity is a function of secondary petrogenetic effects (e.g., crystallization and degassing). -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Sun Sep 8 17:45:55 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Sun, 8 Sep 2019 21:45:55 +0000 Subject: [Eoas-seminar] EOAS Colloquium Friday Sept 13 3:30 CAR 101 In-Reply-To: References: Message-ID: Our next EOAS colloquium speaker will be this Friday at 3:30 in CAR 101: Dr. Nicolas Cassar of Duke University Title: Revisiting the biogeography of marine N2 fixation with high-resolution observations ?The supply of new nutrients to the ocean surface fuels primary production and the export of organic carbon to deep waters. As one of the main sources of new nitrogen to marine ecosystems, N2 fixation is a microbial process with profound biogeochemical implications. However, the fundamental role that N2 fixation plays in the cycling of nitrogen and carbon stands in sharp contrast to our poor understanding of its global distribution, a fact largely attributable to current methods that cannot capture the patchy distribution of marine N2 fixation. To ascertain its distribution, our lab recently developed a method for high-frequency underway measurements of N2 fixation. From our deployment of this new method over large swaths of the western North Atlantic, we located hotpots of marine N2 fixation along the Eastern Seaboard. I will discuss our results in the context of microbial communities and environmental conditions in this region. Overall, our observations of thriving cyanobacterial diazotrophs in coastal waters challenges the current paradigm of higher N2 fixation in the warm oligotrophic waters of the subtropical gyres.? -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Sep 9 12:58:22 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 9 Sep 2019 16:58:22 +0000 Subject: [Eoas-seminar] Seminar 11:00 Thursday at COAPS Message-ID: Title :Reconstruction of Agulhas Rings paths and thermohaline structures by satellite altimetry and Argo profiling float data. Speaker: Remi Laxenaire Location: COAPS conference room (2nd floor, Research A, Innovation Park) Time: Thursday Sept. 12th at 11:00 AM Abstract : The Indo-Atlantic interocean heat exchanges are tightly linked to global ocean circulation and climate. They are principally achieved by the Agulhas Rings (AR), the largest mesoscale eddies of the world ocean, which are investigated in this study by means of 24 years (1993-2016) of daily satellite-altimetry maps and Argo floats profiles. By applying the TOEddies eddy identification and tracking algorithm to daily maps of Absolute Dynamical Topography (ADT), we estimate Agulhas Rings origins, paths and lifetime. The main novelty lies in the detection of numerous eddies splitting and merging events that leads to the definition of a network of trajectories instead of a biunivocal identification between an eddy with a single trajectory. The results obtained by the network differ considerably with previous estimates connecting eddies formed in the Indian Ocean upstream of the Agulhas Current to eddies in the Brazil Current. The collocation of the reconstructed segments of AR trajectories with Argo profiling floats gives access to their thermohaline structure. These data allow to estimate the evolution of AR along their trajectories. In particular, we show en route modification of an AR, transitioning from a surface to a subsurface intensified eddy subducting when entering the South Atlantic subtropical gyre. Moreover, in the Cape Basin, before its subduction, this AR undergoes to very intense air-sea interactions that lead to a very deep mixing layer. Here the eddy upper-core of Indian Ocean thermocline waters are significantly cooled. These waters transform into mode waters once the eddy subducts into the ocean interior. Finally, an estimate of AR geographical distribution from the numerous eddies detected in the Cape Basin and South Atlantic Ocean show that the reconstructed AR is not an exception as AR generally subduct when they leave the Cape Basin. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Sep 13 10:17:30 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 13 Sep 2019 14:17:30 +0000 Subject: [Eoas-seminar] REMINDER TODAY: EOAS Colloquium Friday Sept 13 3:30 CAR 101 In-Reply-To: References: Message-ID: Our next EOAS colloquium speaker will be TODAY at 3:30 in CAR 101: Dr. Nicolas Cassar of Duke University Title: Revisiting the biogeography of marine N2 fixation with high-resolution observations ?The supply of new nutrients to the ocean surface fuels primary production and the export of organic carbon to deep waters. As one of the main sources of new nitrogen to marine ecosystems, N2 fixation is a microbial process with profound biogeochemical implications. However, the fundamental role that N2 fixation plays in the cycling of nitrogen and carbon stands in sharp contrast to our poor understanding of its global distribution, a fact largely attributable to current methods that cannot capture the patchy distribution of marine N2 fixation. To ascertain its distribution, our lab recently developed a method for high-frequency underway measurements of N2 fixation. From our deployment of this new method over large swaths of the western North Atlantic, we located hotpots of marine N2 fixation along the Eastern Seaboard. I will discuss our results in the context of microbial communities and environmental conditions in this region. Overall, our observations of thriving cyanobacterial diazotrophs in coastal waters challenges the current paradigm of higher N2 fixation in the warm oligotrophic waters of the subtropical gyres.? -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Sun Sep 15 18:13:45 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Sun, 15 Sep 2019 22:13:45 +0000 Subject: [Eoas-seminar] EOAS Colloquium Speaker Fri Sept 20 at 3:30 In-Reply-To: <450b6989-60eb-2ad6-ff22-7ee2f73495d4@fsu.edu> References: <450b6989-60eb-2ad6-ff22-7ee2f73495d4@fsu.edu> Message-ID: Please join us for our next speaker in the Fall EOAS Colloquium series, this Friday Sept 20 at 3:30 in CAR 101 Dr. Jon Ahlquist, Assoc. Prof., EOAS Quantifying Hurricane Forecast Uncertainty Forecast uncertainty for Hurricane Dorian was at the core of the national news earlier this month. Understanding forecast uncertainty is nontrivial, so this seminar will cover several of the issues involved with quantifying forecast uncertainty, particularly for hurricanes. These will include: (*) Bayesian vs frequentist view of probability (*) hurricane track vs intensity errors (*) the National Hurricane Center Track Forecast Cone (?cone of uncertainty?) (*) ensemble forecasting and Krishnamurti?s superensemble (*) spaghetti diagrams (*) adjusting an ensemble distribution to make it more representative of the actual uncertainty This talk is aimed at a general EOAS audience. If there is tropical activity on the day of the seminar, we can use forecasts for the day among the examples. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Sep 16 12:10:37 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 16 Sep 2019 16:10:37 +0000 Subject: [Eoas-seminar] News from the FSU Center for Ocean-Atmospheric Prediction Studies (COAPS) In-Reply-To: <1133139771769.1104107396812.1471269770.0.811100JL.2002@scheduler.constantcontact.com> References: <1133139771769.1104107396812.1471269770.0.811100JL.2002@scheduler.constantcontact.com> Message-ID: You don't want to miss this. [http://r20.rs6.net/on.jsp?ca=58d35cd3-5b1d-4ecc-923d-8c3453bec4d7&a=1104107396812&c=461612e8-9c17-11e9-b091-d4ae529ce48a&ch=46173d26-9c17-11e9-b091-d4ae529ce48a] Fall 2019 NEWSLETTER [https://www.coaps.fsu.edu/images/newsletter/coaps-news-masthead.jpg] International Ocean Vector Winds Science Team Meeting Highlights Air-Sea Coupling Solutions [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/IOVWST-2019.jpg] A number of current and former COAPSians attended this year's International Ocean Vector Winds Science Team (IOVWST) meeting, an annual forum for researchers to share progress in science related to ocean surface winds: oceanography, meteorology, air-sea interaction, and issues with instrumentation and data. This year's meeting also included highly focused sessions to promote progress in three areas: developing and communicating observational requirements for science and applications; issues and solutions related to air-sea coupling in observations and models; and calibration of extreme winds. It was decided that future meetings will include a broader applications of observations in the atmospheric and oceanic boundary-layers. [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/IOVWST-collage.jpg] Recent Activities & Accomplishments OceanWorks Team Members at ESIP Summer 2019 Meeting [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/ESIP-Summer2019.jpg] The OceanWorks project completed its final review with many of the team members together in person (pictured at left) at the ESIP Summer Meeting! ESIP a community of innovative science, data and information technology practitioners who catalyze connections across traditional institutional and domain boundaries to solve critical Earth science data stewardship, information technology and interoperability issues. OceanWorks is a collaboration between several NASA open-source, big data projects to create a science data analytics platform that supports data discovery, anomaly detection, quality-screened data subsetting, in situ-to-satellite data match-up services, and visualization and analysis tools on the fly with ocean data available from distributed data centers. The COAPS Marine Data Center supported the SAMOS shipboard dataset within the OceanWorks system and contributed to development of the Distributed Oceanographic Match-Up Service to match in situ and satellite data. Current COAPSians who worked on this project include Shawn Smith, Jocelyn Elya, Mark Bourassa, Mike McDonald, and Homer McMillan. Biological Survey Cruise in the Labrador Sea In June/July, Dmitry Dukhovskoy participated in a research cruise taking biological and hydrodynamic survey of the continental shelf break and deep basin in the northwestern Labrador Sea. Dukhovskoy was responsible for providing physical oceanographic interpretations of observations (water masses, location of oceanic fronts, etc.). He worked with the Moving Vessel Profiler (MVP) -- a new instrument that allows for very detailed temperature and salinity measurements in the upper 300-500 m ocean. Because this instrument can be used while a vessel is moving, it saves a great deal of time. It is also a good instrument for measuring oceanic fronts, which can be very narrow features making them very difficult to observe with other hydrographic measurements. [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/dd-cruise.jpg] Honors and Awards [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/Bourassa-IEEE-award-web.jpg] Mark Bourassa was elected to the grade of Senior Member in the Institute of Electrical and Electronics Engineers (IEEE) Geosciences & Remote Sensing Society. Bourassa has been an active member of the society for 16 years. He has served as a session organizer for the IEEE Geosciences and Remote Sensing Symposium (IGARSS), chaired many session, and reviewed many papers for IEEE publications, particularly for Transactions on Geoscience and Remote Sensing. He has also served as a leader in the remote sensing community for over a decade. Public Education & Outreach Summer Outreach Program Focuses on Ocean Science This summer, COAPS and CSOMIO hosted an outreach initiative focused on bringing fun and informative ocean science activities to students in Tallahassee and Panama City. Outreach intern Lucia Gil, a senior studying biology at FSU, designed each of the lessons and accompanying hands-on demonstrations and interacted with more than 200 children ages 4-14 over the course of the summer. Gil's activities dealt with the nature of clouds, ocean currents, and hurricanes. She also developed creative activities to help students appreciate issues related to plastics in the ocean and plankton's role in the ocean. Each lesson included an interactive element where students could work through the ideas within small groups. [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/summer-outreach.jpg] Student Achievements [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/ovswt-ethan-poster-web.jpg] [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/Daneisha-Blair-2019.jpg] Congratulations to Daneisha Blair (at right) on being awarded the Latin America-Caribbean (LAC) scholarship. Blair is a master's student studying meteorology. Ethan Wright, master's student in meteorology, presented a poster on "A Comparison of Buoys and Scatterometers in High Wind Conditions" at the International Ocean Vector Winds Team annual meeting (at left). [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/grad-trio-summer19.jpg] Look who moved their tassels this summer! [https://www.coaps.fsu.edu/images/newsletter/coaps-grad-cap.jpg] Marine Data Center undergraduate programmer Randy Bruno-Piverger (top left) was awarded a BS in Computer Science with honors in the major, and a BA in Philosophy with honors in the major. Bruno-Piverger has accepted a position at IBM at their headquarters in Durham, NC. Programmer Camill Folsom (middle left) successfully defended his master's project in computer science, "Shipboard Automated Meteorological and Oceanographic System: Merger Program Re-Write" and graduated over the summer. John Ueling (bottom left) successfully defended his master's project in meteorology: "Describing the onset and demise of the Australian Monsoon." Ueling will be pursuing a PhD in meteorology at FSU under the direction of Vasu Misra. He will be looking at the impacts of climate change on Florida's climate. [https://www.coaps.fsu.edu/images/newsletter/2019-Fall/kyle-defense-web.jpg] On August 8, Kyle Ahern defended his dissertation, "Hurricane Boundary Layer Structure During Intensity Change: An Observational and Numerical Analysis," to earn his doctoral degree in meteorology. Ahern was co-advised by Mark Bourassa and Bob Hartwill. He will graduate in fall 2019. Recent Publications Ahern, K., M. Bourassa, R. Hart, J. Zhan, R. Rogers, 2019: Observed Kinematic and Thermodynamic Structure in the Hurricane Boundary Layer During Intensity Change. Mon. Wea. Rev. 147(8), pp.2765-2785. Bourassa, M. A., T. Meissner, I. Cerovecki, et al., 2019. Remotely Sensed Winds and Wind Stresses for Marine Forecasting and Ocean Modeling. Frontiers in Marine Science, 6, p 443. Carstens, J. (2019). Tropical Cyclogenesis from Self-aggregated Convection in Numerical Simulations of Rotating Radiative-convective Equilibrium. Florida State University - FCLA; ProQuest Dissertations & Theses Global, Tallahassee, FL Cronin, M. F., Gentemann, C. L., Edson, J., Ueki, I., Bourassa, M., Brown, S., et al. (2019). Air-Sea Fluxes With a Focus on Heat and Momentum. Front. Mar. Sci., 6. Deng, J., Wu, Z., Zhang, M., Huang, N. E., Wang, S., & Qiao, F. (2019). Data concerning statistical relation between obliquity and Dansgaard-Oeschger events. Data Brief, 23. Dukhovskoy, D. S., Yashayaev, I., Proshutinsky, A., Bamber, J. L., Bashmachnikov, I. L., Chassignet, E. P., et al. (2019). Role of Greenland Freshwater Anomaly in the Recent Freshening of the Subpolar North Atlantic. J. Geophys. Res. Oceans, 124(5), 3333?3360. Huang, T., Armstrong, E. M., Bourassa, M. A., Cram, T. A., Elya, J., Greguska, F., et al. (2019). An Integrated Data Analytics Platform. Mar. Sci., 6. Kent, E. C., Rayner, N. A., Berry, D. I., Eastman, R., Grigorieva, V. G., Huang, B., et al. (2019). Observing Requirements for Long-Term Climate Records at the Ocean Surface. Front. Mar. Sci., 6, 441. Liu, Y., Tan, Z. - M., & Wu, Z. (2019). Noninstantaneous Wave-CISK for the Interaction between Convective Heating and Low-Level Moisture Convergence in the Tropics. J. Atmos. Sci., 76(7), 2083?2101. Rodr?guez, E., Bourassa, M., Chelton, D., Farrar, J. T., Long, D., Perkovic-Martin, D., et al. (2019). The Winds and Currents Mission Concept. Front. Mar. Sci., 6. Stukel, M. R., & Kelly, T. B. (2019). The carbon: (234) Thorium ratios of sinking particles in the California current ecosystem 2: Examination of a thorium sorption, desorption, and particle transport model. Marine Chemistry, 212, 1?15. Stukel, M. R., Ohman, M. D., Kelly, T. B., & Biard, T. (2019). The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific. Front. Mar. Sci., 6. Villas B?as, A. B., Ardhuin, F., Ayet, A., Bourassa, M. A., Brandt, P., Chapron, B., et al. (2019). Integrated Observations of Global Surface Winds, Currents, and Waves: Requirements and Challenges for the Next Decade. Front. Mar. Sci., 6. Zou, M., Xiong, X., Wu, Z., Li, S., Zhang, Y., & Chen, L. (2019). Increase of Atmospheric Methane Observed from Space-Borne and Ground-Based Measurements. Remote Sensing, 11(8). Visit our website FSU Center for Ocean-Atmospheric Prediction Studies | 2000 Levy Ave., Bldg. A, Suite 292, Tallahassee, FL 32306-2741 Unsubscribe baustrui at fsu.edu Update Profile | About Constant Contact Sent by contact at coaps.fsu.edu in collaboration with [Trusted Email from Constant Contact - Try it FREE today.] Try email marketing for free today! -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Fri Sep 20 09:43:57 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Fri, 20 Sep 2019 13:43:57 +0000 Subject: [Eoas-seminar] Reminder - TODAY - EOAS Colloquium Speaker Fri Sept 20 at 3:30 In-Reply-To: <450b6989-60eb-2ad6-ff22-7ee2f73495d4@fsu.edu> References: <450b6989-60eb-2ad6-ff22-7ee2f73495d4@fsu.edu> Message-ID: Please join us for our next speaker in the Fall EOAS Colloquium series, TODAY at 3:30 in CAR 101 Dr. Jon Ahlquist, Assoc. Prof., EOAS Quantifying Hurricane Forecast Uncertainty Forecast uncertainty for Hurricane Dorian was at the core of the national news earlier this month. Understanding forecast uncertainty is nontrivial, so this seminar will cover several of the issues involved with quantifying forecast uncertainty, particularly for hurricanes. These will include: (*) Bayesian vs frequentist view of probability (*) hurricane track vs intensity errors (*) the National Hurricane Center Track Forecast Cone (?cone of uncertainty?) (*) ensemble forecasting and Krishnamurti?s superensemble (*) spaghetti diagrams (*) adjusting an ensemble distribution to make it more representative of the actual uncertainty This talk is aimed at a general EOAS audience. If there is tropical activity on the day of the seminar, we can use forecasts for the day among the examples. -------------- next part -------------- An HTML attachment was scrubbed... URL: From eoas-seminar at lists.fsu.edu Mon Sep 23 11:56:40 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 23 Sep 2019 15:56:40 +0000 Subject: [Eoas-seminar] No EOAS colloquium this week Message-ID: There will not be an EOAS colloquium speaker this week as there is a faculty meeting scheduled. From eoas-seminar at lists.fsu.edu Thu Sep 26 09:44:33 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Thu, 26 Sep 2019 13:44:33 +0000 Subject: [Eoas-seminar] MET Seminar, Oct. 3 Message-ID: Hi All, In the coming Thursday (Oct. 3), we will have the first MET seminar in this academic year at regular seminar time and location (3:30 PM, LOV 353) in which Prof. Hu will discuss model projected global warming. The title and abstract of her talk are (also see the attached seminar announcement flyer) Title: What are the main sources for the spread of climate model warming projection? Abstract: Climate models forced by increasing greenhouse gas concentrations unanimously project a long-term warming of Earth?s surface. The magnitude of this warming diverges substantially between models, which is termed as the inter-model warming projection spread (WPS). Cloud feedback has been postulated as the main cause of the large inter-model WPS. We examine the global warming projection under the RCP8.5 scenario reported in the Intergovernmental Panel on Climate Change (IPCC) fifth assessment report. We find that the inter-model spreads of surface albedo and water vapor feedbacks are the key contributors to the inter-model WPS. Surface turbulent sensible and latent heat flux feedbacks cancel out part of the inter-model spreads surface albedo and water vapor feedbacks, and therefore act to suppress the inter-model WPS. Despite of its large amplitude, the inter-model spread of cloud feedbacks exhibit little correlation with the inter-model WPS. Because different models exhibit different combinations of cancellations between cloud feedbacks and other feedback processes, the impact of the inter-model spread of cloud feedbacks does not play a major role in causing the inter-model WPS. The following is the list of this semester's MET seminar series: Date Speaker Title Oct. 3, 2019 Xiaoming Hu What are the main sources for the spread of climate model warming projection? Oct. 10, 2019 Esther Mullens The past, present, and future of extreme precipitation in the South Central U.S. Oct. 17, 2019 Zhaohua Wu Conditional Instability of the Second Kind: A Dead End or An Old and New Path Oct. 24, 2019 MET Faculty Meeting MET Faculty Meeting - No Seminar Oct. 31, 2019 Brian Haynes Thesis Defense Nov. 7, 2019 Nirupam Karmakar TBD Nov. 14, 2019 Allison Wing The role of radiative-convective feedbacks in tropical cyclone formation in numerical simulations Nov. 21, 2019 Bobby West TBD Nov. 28, 2019 Thanksgiving Thanksgiving - No Seminar Dec. 5, 2019 Sweta Das Thesis Defense Look forward to meeting you in the seminar room. Cheers, Zhaohua -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: MET_Seminar_Flyer_Hu.pdf Type: application/pdf Size: 987752 bytes Desc: MET_Seminar_Flyer_Hu.pdf URL: From eoas-seminar at lists.fsu.edu Mon Sep 30 15:29:21 2019 From: eoas-seminar at lists.fsu.edu (eoas-seminar at lists.fsu.edu) Date: Mon, 30 Sep 2019 19:29:21 +0000 Subject: [Eoas-seminar] EOAS Colloquium Speaker Fri Oct. 4 at 3:30 Message-ID: Hi all, Please join us for our next speaker in the Fall EOAS Colloquium series, this Friday Oct. 4 at 3:30 in CAR 101. Dr. Nick Moore, Assoc. Prof., Mathematics, FSU Title: Experiments and theory for anomalous waves induced by abrupt changes in topography Abstract: I will discuss both laboratory experiments and a newly developed theory for randomized surface waves propagating over variable bathymetry. The experiments show that an abrupt depth change can qualitatively alter wave statistics, transforming an initially Gaussian wave field into a highly skewed one. In our experiments, the probability of a rogue wave can increase by a factor of 50 compared to what would be expected from normal statistics. I will discuss a theoretical framework based on dynamical and statistical analysis of the truncated KdV equations. This theory accurately captures many key features of the experiments, such as the skewed outgoing wave distributions and the associated excitation of higher frequencies in the spectrum. -------------- next part -------------- An HTML attachment was scrubbed... URL: