Member Since 2015
Isla Simpson
Scientist 3, National Center for Atmospheric Research
AGU Research
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What Drives the Spread and Bias in the Surface Impact of Sudden Stratospheric Warmings in CMIP6 Models?
STRATOSPHERIC DYNAMICS, AEROSOL PROCESSES, AND INTERACTIONS WITH THE TROPOSPHERE II ORAL
atmospheric sciences | 13 december 2024
Ying Dai, Peter Hitchcock, Isla Simpson
This study evaluates the representation of the composite-mean surface response to sudden stratospheric warmings (SSWs) in 28 CMIP6 models. Most models...
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The Vertical Extent of Convection in the Community Earth System Model (CESM): A Simplified Total Energy Approach to Plume Properties
SUBSEASONAL TO SEASONAL TROPICAL VARIABILITY: OBSERVATIONS, MODELING, PROCESSES, AND GLOBAL IMPACTS I ORAL
atmospheric sciences | 13 december 2024
Richard B. Neale, Cecile Hannay, Peter H. Lauritze...
Precipitating convection in the tropics is associated with instability extending throughout the atmospheric column, deep latent heating profiles that ...
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Comparing historical mean sea level pressure extratropical cyclone activity trends between reanalysis and models
THE DYNAMICS OF LARGE-SCALE ATMOSPHERIC CIRCULATION IN PRESENT AND FUTURE CLIMATES: JET STREAMS, STORM TRACKS, STATIONARY WAVES, AND MONSOONS I POSTER
atmospheric sciences | 12 december 2024
Ian Baxter, Tiffany Shaw, Isla Simpson, Pu Lin, Zh...
Extratropical cyclones account for over 80% of mean and extreme precipitation in many key midlatitude water resource regions around the world, yet it ...
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High-resolution Simulations of the Polar Vortex
STRATOSPHERIC DYNAMICS, AEROSOL PROCESSES, AND INTERACTIONS WITH THE TROPOSPHERE I POSTER
atmospheric sciences | 12 december 2024
Julio T. Bacmeister, Isla Simpson, Cecile Hannay, ...
The stratospheric polar night vortex is an important feature of the atmospheric general circulation. Correctly simulating the strength and duration of...
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Sea surface temperature trend discrepancies impact Southern Hemisphere extratropical circulation trends
PACIFIC ATMOSPHERIC TELECONNECTIONS: DYNAMICS, IMPACTS, AND FUTURE PROJECTIONS I ORAL
global environmental change | 11 december 2024
Joonsuk Kang, Tiffany Shaw, Sarah M. Kang, Isla Si...
State-of-the-art coupled climate models fail to capture the observed historical sea surface temperature (SST) trends in the tropical Pacific and South...
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Impact of Vertical and Horizontal Resolution on Key Aspects of the Community Atmosphere Model version 7 (CAM7) Climate
HIGH-RESOLUTION EARTH SYSTEM MODELING ON LARGE SUPERCOMPUTERS I POSTER
atmospheric sciences | 11 december 2024
Cecile Hannay, Julio T. Bacmeister, Adam R. Herrin...
The Community Atmosphere Model version 6 (CAM6) serves as the atmospheric component of the Community Earth System Model Version 2 (CESM2). The standar...
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The Detection and Attribution Model Intercomparison Project: CMIP6 highlights and plans for CMIP7
DETECTION AND ATTRIBUTION OF ANTHROPOGENIC CLIMATE CHANGE AND EXTREME WEATHER AND CLIMATE EVENTS II ORAL
global environmental change | 11 december 2024
Isla Simpson, Nathan Gillett, Gabriele C. Hegerl, ...
The Detection and Attribution Model Intercomparison Project (DAMIP) coordinates single forcing climate model simulations for detection and attribution...
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Multi-model estimates of the timing of peak global warming relative to zero emissions under an idealized CO2 emissions ramp-down experiment
PROCESSES THAT CONTROL THE PAST, PRESENT, AND FUTURE NET LAND CARBON BALANCE II ORAL
biogeosciences | 11 december 2024
Charles D. Koven, Benjamin M. Sanderson, Victor Br...
We conducted a set of idealized CO2 emissions-driven experiments, flat10MIP, using multiple coupled carbon-climate Earth system models (ESMs) and simp...
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