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Member Since 2015
Isla Simpson
Scientist 3, National Center for Atmospheric Research
AGU Research
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Implementation and Exploration of Parameterizations of Large‐Scale Dynamics in NCAR's Single Column Atmosphere Model SCAM6
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
25 june 2024
Sean Cohen, Adam H. Sobel, Michela Biasutti, Shugu...
A single column model with parameterized large‐scale (LS) dynamics is used to better understand the response of steady‐state tropical p...
Contributions of Parameterized Gravity Waves and Resolved Equatorial Waves to the QBO Period in a Future Climate of CESM2
JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES
16 april 2024
Hyun-Kyu Lee, Hye-Yeong Chun, Rolando R. Garcia, J...
Contributions of the resolved waves and parameterized gravity waves to changes in the quasi‐biennial oscillation (QBO) in a future simulation...
How fast will the midlatitude land’s hottest days warm as climate changes?
EXTRATROPICAL LARGE-SCALE ATMOSPHERIC CIRCULATION VARIABILITY I ORAL
atmospheric sciences | 15 december 2023
Yi Zhang, William R. Boos, Isla Simpson
The IPCC assessment report relies partly on CMIP (Coupled Model Intercomparison Project) models, which project a warming rate of the hottest days aver...
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Externally-forced changes to stratosphere-troposphere coupling mode influences Southern Hemisphere seasonal climate predictability
EXTRATROPICAL LARGE-SCALE ATMOSPHERIC CIRCULATION VARIABILITY II ELIGHTNING
atmospheric sciences | 15 december 2023
Amy H. Butler, Eun-Pa Lim, Isla Simpson
Stratosphere-troposphere coupling in the Southern Hemisphere (SH) occurs primarily in austral spring, and the dominant mode of variability in this ver...
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Influence of obstacle effect on convectively generated gravity wave drag in the lowermost stratosphere
ATMOSPHERIC GRAVITY WAVES, FROM THE SURFACE TO THE EDGE OF SPACE I ORAL
atmospheric sciences | 15 december 2023
Martina Bramberger, M Joan Alexander, Julio T. Bac...
Atmospheric gravity waves play an important role in forcing large-scale atmospheric circulation that significantly impact seasonal and near-term clima...
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Revisiting the observation-model discrepancy in Southern Hemisphere winter storm track trends
EXTRATROPICAL LARGE-SCALE ATMOSPHERIC CIRCULATION VARIABILITY I ORAL
atmospheric sciences | 15 december 2023
Tiffany Shaw, Joonsuk Kang, Sarah M. Kang, Isla Si...
Reanalysis datasets show storminess in the Southern Hemisphere (SH) has significantly increased during wintertime since 1979. Previous work reported a...
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Observed humidity trends in dry regions contradict climate models.
THE GLOBAL WATER CYCLE: COUPLING AND EXCHANGES BETWEEN THE OCEAN, LAND, CRYOSPHERE, AND ATMOSPHERE I POSTER
global environmental change | 14 december 2023
Isla Simpson, Karen A. McKinnon, Daniel Kennedy, D...
Earth System Models are our primary tool for projecting the future hydroclimate that society must adapt to so we must continually assess whether these...
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Evidence for Anthropogenic Aerosols-Driven Precipitation Decline over the U.S. Southwest
DROUGHT: MECHANISMS AND IMPACTS IN THE PAST, PRESENT, AND FUTURE I POSTER
global environmental change | 14 december 2023
Yan-Ning Kuo, Flavio Lehner, Clara Deser, Matthew ...
Annual precipitation over the Southwestern United States (SWUS) has been decreasing since 1980. During this period, the tropical Pacific sea surface t...
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