Seminars
Fall 2026 AOES Seminars
2 Sep (CLIM) - Lee, Precipitation in SPEAR model
Speaker: Jaeyeon Lee, George Mason University
Title: Resolution Dependence of Extratropical Cyclone Precipitation over the United States in the GFDL SPEAR model
Time: Wednesday, September 2, 2026, 1:30–2:30 pm
Location: Exploratory Hall Room L111 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Abstract: Extratropical cyclones produce most of the cold-season precipitation over the contiguous United States, and their representation in climate models is sensitive to horizontal resolution. Increasing resolution is known to increase simulated mean precipitation across many models, but it remains unclear whether this increase is cyclone-related and, if so, which cyclone properties it reflects. In this talk I address that question using the GFDL SPEAR model hierarchy, whose three atmospheric resolutions of 100, 50, and 25 km share the same physical parameterizations and ocean model. Its growing wet bias over the West Coast and the eastern United States turns out to be carried entirely by cyclone-related precipitation, and to arise from precipitation intensity rather than from how often or how widely cyclones rain. Conditioning each cyclone on the moisture flux it encounters shows that higher-resolution cyclones rain more intensely at the same flux, but that this response takes different forms in the two regions: over the eastern United States the sensitivity of precipitation to moisture flux increases with resolution, whereas over the West Coast the precipitation increment remains nearly constant across moisture-flux conditions. I close by examining what these contrasting responses imply for interpreting a resolution-driven change in regional-mean precipitation.
Bio:Jaeyeon Lee is a postdoctoral research fellow in the Department of Atmospheric, Oceanic, and Earth Sciences at George Mason University, working with Cristiana Stan. He received his Ph.D. from Seoul National University in 2023 and was previously a postdoctoral researcher at Princeton University and NOAA/GFDL. His research examines how midlatitude weather systems shape regional climate and hydroclimate extremes, with a particular focus on extratropical cyclones and storm tracks, their interactions with the large-scale circulation, and their representation in climate models.
3 Sep (GEOL) - Sanders, Title TBD
Speaker: Cecelia Sanders
Title: TBD
Time:Thu, 3 Sep, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
9 Sep (CLIM) - Singh, Emerging AI-Enabled Research Ecosystems
Speaker: Bohar Singh, UCAR
Title: The Emerging AI-Enabled Research Ecosystems
Time: Wednesday, September 9, 2026, 1:30–2:30 pm
Location: Exploratory Hall Room L111 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Xiaojing Du
ABSTRACT: Abstract: Artificial intelligence is rapidly transforming the research lifecycle. Emerging tools now help researchers brainstorm ideas, understand complex papers, write and debug code, analyze data, and improve scientific manuscripts. Publishers are also developing policies that permit certain uses of AI when they are transparently disclosed and authors retain responsibility for the final work. These developments are accelerating the journey from research ideas to publication, while also contributing to a rapidly growing and increasingly fragmented scientific literature. Researchers must monitor numerous journals, preprint servers, databases, and alerting services to identify work relevant to their specific interests. Although many AI-enabled tools support individual stages of research, relatively few address the continuing challenge of personalized research discovery and knowledge organization.
This talk will introduce OneScholar, an evolving research ecosystem designed to help researchers discover relevant publications, save and organize papers, conduct focused literature surveys, and identify funding opportunities aligned with the interests of an individual researcher or research group. OneScholar is also being developed to connect a researcher’s personalized and carefully bounded knowledge space with general-purpose AI tools such as ChatGPT, Claude, and other AI assistants. This connection can support more focused, research-grounded brainstorming while reducing irrelevant information and noise. The presentation will demonstrate OneScholar’s current capabilities and discuss its future development as an integrated environment connecting research discovery, literature synthesis, knowledge organization, funding intelligence, and AI-assisted scientific inquiry.
10 Sep (GEOL) - Ahm, TitleTBD
Speaker: Anne-Sofie Ahm
Title: TBD
Time:Thu, 10 Sep, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
16 Sep (CLIM) - Tang, Title TBD
Speaker: Beiming Tang
Title:TBD
Time: Wed, 16 Sep, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
ABSTRACT: TBD
17 Sep (GEOL) - Evans, Title TBD
Speaker: Scott Evans
Title: TBD
Time:Thu, 17 Sep, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
23 Sep (CLIM) - McKinnon, Title TBD
Speaker: Karen McKinnon
Title:TBD
Time: Wed, 23 Sep, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Aahelee Sarker
ABSTRACT: TBD
24 Sep (GEOL) - Standring, Title TBD
Speaker: Patricia Standring
Title: TBD
Time:Thu, 24 Sep, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
30 Sep (CLIM) - Tallapragada, NWP at NOAA NWS
Speaker: Vijay Tallapragada
Title: Advancing operational NWP at NOAA NWS
Time: Wed, 30 Sep, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Jim Kinter
ABSTRACT: TBD
1 Oct (GEOL) - Gilleaudeau, Title TBD
Speaker: Geoff Gilleaudeau
Title: TBD
Time:Thu, 1 Oct, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoff Gilleaudeau
7 Oct (CLIM) - Nedza, UFS Tropical Cyclones
Speaker: Douglas Nedza
Title:UFS Tropical Cyclones
Time: Wed, 7 Oct, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
ABSTRACT: TBD
8 Oct (GEOL) - Peters, Title TBD
Speaker: Shanan Peters
Title: TBD
Time:Thu, 8 Oct, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
15 Oct (GEOL) - Denniston, Title TBD
Speaker: Rhawn Denniston
Title: TBD
Time:Thu, 15 Oct, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
19 Oct (CLIM & GEOL) - Lam, Title TBD
Speaker: Joint Climate–Geology seminar: Adriane Lam
Title:TBD
Time: Mon, 19 Oct, 4:00-5:00 pm
Location: Exploratory Hall, Room L111 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: TBD
ABSTRACT: TBD
21 Oct (CLIM) - Hu, Title TBD
Speaker: Aixue Hu
Title:TBD
Time: Wed, 21 Oct, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Go Sato/ Xiaojing Du
ABSTRACT: TBD
22 Oct (GEOL) - Jenkins, Title TBD
Speaker: Kelsey Jenkins
Title: TBD
Time:Thu, 22 Oct, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
28 Oct (CLIM) - Thompson, Title TBD
Speaker: Alexander Thompson
Title:TBD
Time: Wed, 28 Oct, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Tehreem Qureshi/Xiaojing Du
ABSTRACT: TBD
29 Oct (GEOL) - Wilson, Title TBD
Speaker: Frederic (Ric) H Wilson
Title: TBD
Time:Thu, 29 Oct, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
4 Nov (CLIM) - Straus, Storm Tracks
Speaker: David Straus
Title:Barotropic & Baroclinic Storm Tracks
Time: Wed, 4 Nov, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
ABSTRACT: TBD
5 Nov (GEOL) - Johnson, Title TBD
Speaker: Lilly Pfeifer-Johnson
Title: TBD
Time:Thu, 5 Nov, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
11 Nov (CLIM) - Wang, Title TBD
Speaker: Siyuan Wang
Title:TBD
Time: Wed, 11 Nov, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Daniel Tong
ABSTRACT: TBD
12 Nov (GEOL) - Bowyer, Title TBD
Speaker: Fred Bowyer
Title: TBD
Time:Thu, 12 Nov, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
18 Nov (CLIM) - Newman, Title TBD
Speaker: Matthew Newman
Title:TBD
Time: Wed, 18 Nov, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Aahelee Sarker
ABSTRACT: TBD
19 Nov (GEOL) - Asmerom, Title TBD
Speaker: Yemane Asmerom
Title: TBD
Time:Thu, 19 Nov, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau
2 Dec (CLIM) - Tomoff, Meteorologist at Mars Wrigley
Speaker: Alex Tomoff
Title:Lead Meteorologist at Mars Wrigley
Time: Wed, 2 Dec, 1:30-2:30 pm
Location: Exploratory Hall, Room L011 or via Zoom (for Zoom link, email xdu5@gmu.edu)
Host: Ivy Stempkovski
ABSTRACT: TBD
3 Dec (GEOL) - Graduate Students, Title TBD
Speaker: Graduate Students
Title: TBD
Time:Thu, 3 Dec, 4:30pm ET
Location:Exploratory 1309 and via Zoom (for link, email ggilleau@gmu.edu)
Host: Geoffrey J Gilleaudeau