Seminars

Abhishekh Srivastava, U California, Davis

Differences in trends between mean and extreme summer temperature are related to local hydroclimate

Wed, 23 Aug, 1:30, via Zoom (for link, email lortizur@gmu.edu)

AOES host: Tim DelSole

Timothy Delsole, George Mason U 

The Most Predictable Component of a Linear Stochastic Model 

Wed, 30 Aug, 1:30,

EXPL 3301 and via Zoom (contact bklinger@gmu.edu; different zoom link for this week)

AOES Host: Barry Klinger 

Thurs., 4:30-5:45 pm, 1309 Exploratory Hall GEOL 392/792;

in-person and Zoom: https://gmu.zoom.us/j/92533917846

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Christian Santoni, Stony Brook U 

Weather Research and Forecasting model simulations of wind farms 

Wed, 6 Sep, 1:30, via Zoom (https://gmu.zoom.us/j/5841495324) 

AOES Host: Luis Ortiz 

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Sep 07 Gan Tian, invertebrate paleontology, University of Maryland, College Park (live)

Thurs., 4:30-5:45 pm, 1309 Exploratory Hall GEOL 392/792;

in-person and Zoom: https://gmu.zoom.us/j/92533917846

Shawn Domagal-Goldman, NASA Goddard Space Flight Center

Wed, 13 Sep, 1:30, EXPL 3301 and via Zoom (for link, email lortizur@gmu.edu)

The Habitable Worlds Observatory and the Search for Life Beyond the Solar System

Are we alone? This is something humans have philosophized about for ages. NASA has plans to place that question into the domain of the scientific method. We are working with partners across the world on missions that are designed to search for evidence of biological activity on Mars, in the icy worlds in our outer Solar System, and on the myriad exoplanets beyond the Solar System. In this talk we will focus on the mission concept designed to search for life on exoplanets - the Habitable Worlds Observatory (HWO). HWO will be designed to look at reflected-light spectra of Earth-sized planets in the habitable zones of their host stars. This will allow scientists to analyze those spectra and look for signs of life. We will discuss how HWO will achieve this - both scientifically and from an engineering/technology standpoint. And we will showcase some of the work GMU students are doing that is relevant to this future great observatory.

AOES host: Alia Wofford

Sep 14 Aaron Martin, structural geology, Instituto Potosino, Mexico (live)

Thurs., 4:30-5:45 pm, 1309 Exploratory Hall GEOL 392/792;

in-person and Zoom: https://gmu.zoom.us/j/92533917846

Colin Raymond, U California Los Angeles

Compound threats from humid heat and storm systems: Assessment and process understanding

Wed, 20 Sep, 1:30, via Zoom (https://gmu.zoom.us/j/5841495324)

Extreme humid heat and storms are deadly hazards whose severity is expected to increase. When occurring in succession, their interaction can enhance the ultimate impacts, such as power outages removing artificial cooling during subsequent heat events. Recent projects have uncovered a substantial physical-process linkage between these two hazard types. For atmospheric rivers [ARs], we find that moist conditions amplify summertime humid heat, preferentially in the northern third of the US. By contrast, other US regions tend to experience ARs and humid heat separately, representing an important negative correlation of joint risk. For tropical cyclones [TCs], along preferred subtropical coastlines, top-1% humid heat is 3-5x more likely than normal within 24 hours of a TC passage. We employ composites, parcel tracking, and TC dynamical theory to understand the spatiotemporal patterns of this compound threat and the processes driving it. We find, for example, that record-breaking humid heat tends to occur over a much larger area for mid-latitude TCs than for tropical ones, and in areas of ascent but an absence of precipitation.

AOES host: Luis Ortiz

Sep 21 Ginny Catania, glaciology, climate change, University of Texas, Austin (virtual)

Thurs., 4:30-5:45 pm, Zoom: https://gmu.zoom.us/j/92533917846

Lucas R.F. Henneman, George Mason U

Wed, 27 Sep, 1:30, TBD and via Zoom (for link, email lortizur@gmu.edu)

AOES host: Luis Ortiz

Sep 28 Geoffrey Gilleaudeau, sedimentology, George Mason University (live)

Thurs., 4:30-5:45 pm, 1309 Exploratory Hall
GEOL 392/792; in-person and Zoom:  https://gmu.zoom.us/j/92533917846  

Christopher Strong, National Weather Service

Introduction to National Weather Service Operations

Wed, 4 Oct, 1:30, via Zoom (for link, email lortizur@gmu.edu)

AOES host: Cristina Stan

Oct 05 Agustina Toscano, invertebrate paleontology, University of Buenos Aires (live)

Thurs., 4:30-5:45 pm, 1309 Exploratory Hall
GEOL 392/792; in-person and Zoom:  https://gmu.zoom.us/j/92533917846  

Jonah Fogel, U Virginia

Wed, 11 Oct, 1:30, via Zoom (for link, email lortizur@gmu.edu)

AOES host: Tim DelSole

Oct 12 Marta Marchegiano, isotope geochemistry, University of Granada, Spain (virtual)

Thurs., 4:30-5:45 pm, Zoom:  https://gmu.zoom.us/j/92533917846  
 

Yue Dong, Columbia U

Wed, 18 Oct, 1:30, TBD and via Zoom (for link, email lortizur@gmu.edu)

AOES host: Natalie Burls

Sybren Drijfhout, U Southampton (UK)

Wed, 25 Oct, 1:30, via Zoom (for link, email lortizur@gmu.edu)

AOES host: Barry Klinge

Oct 26 Mebrahtu Weldeghebriel, low temperature geochemistry, Princeton University (virtual)

Thurs., 4:30-5:45 pm, Zoom:  https://gmu.zoom.us/j/92533917846  

Geoffree Plumlee, US Geological Service

Wed, 1 Nov, 1:30, TBD via Zoom (for link, email lortizur@gmu.edu)

AOES host: Tim DelSole

Nov 02 Shikha Sharma, sustainable energy, University of West Virginia (virtual)

Thurs., 4:30-5:45 pm, Zoom:  https://gmu.zoom.us/j/92533917846
 

Michael Allen, Towson University 

Wed, 8 Nov, 1:30, TBD, via Zoom (https://gmu.zoom.us/j/5841495324) 

AOES host: Daniel Vecellio 

Nov 09 Mohammad Farhat, geophysics, Paris Observatory, France (virtual)

Thurs., 4:30-5:45 pm, 1309 Exploratory Hall
GEOL 392/792; in-person and Zoom:  https://gmu.zoom.us/j/92533917846  
 

Andrea Molod, NASA Goddard Space Flight Center

Wed, 15 Nov, 1:30, TBD via Zoom (for link, email lortizur@gmu.edu)

AOES host: David Straus

Nov 16 Megan Whitney, vertebrate paleontology, Loyola University, Chicago (virtual)

Thurs., 4:30-5:45 pm, Zoom: https://gmu.zoom.us/j/92533917846

Wed, 29 Nov, 1:30,

Nov 30 Stephen Hesselbo, stratigraphy, University of Exeter, UK (virtual), 

Thurs., 4:30-5:45 pm, Zoom: https://gmu.zoom.us/j/92533917846