Search Results - "Simpson, Isla R."

The UCAR Africa Initiative: Recent insights, challenges, and opportunities to foster collaborative research for environmental sustainability.

Authors: Tang, Wenfu Kumar, Rajesh Méndez, Anna Del Moral et al.

Source: Bulletin of the American Meteorological Society; Mar2026, Vol. 107 Issue 3, p1-24, 24p

Is the High ECS in CESM2 Degrading Transient Climate Change Projections Over the 21st Century?

Authors: Duffy, Margaret L. Simpson, Isla R. Medeiros, Brian et al.

Source: Journal of Advances in Modeling Earth Systems. Jan2026, Vol. 18 Issue 1, p1-20. 20p.

The Path Toward Vertical Grid Options for the Community Atmosphere Model Version 7: The Impact of Vertical Resolution on the QBO and Tropical Waves.

Authors: Simpson, Isla R. Garcia, Rolando R. Bacmeister, Julio T. et al.

Source: Journal of Advances in Modeling Earth Systems. Sep2025, Vol. 17 Issue 9, p1-29. 29p.

The Detection and Attribution Model Intercomparison Project (DAMIP v2.0) contribution to CMIP7.

Authors: Gillett, Nathan P. Simpson, Isla R. Hegerl, Gabi et al.

Source: Geoscientific Model Development. 2025, Vol. 18 Issue 14, p4399-4416. 18p.

An evaluation of the seasonal Caribbean hydroclimate in low and high-resolution CESM and other CMIP6 models: An evaluation of the seasonal Caribbean hydroclimate: C. J. Martinez et al.

Authors: Martinez, Carlos J. Simpson, Isla R. Fasullo, John T. et al.

Source: Climate Dynamics. Jan2025, Vol. 63 Issue 1, p1-26. 26p.

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On the Robustness of Modeled Non‐Local Temperature Effects of Historical Land Use Changes.

Authors: Jäger, Felix Sieber, Petra Simpson, Isla R. et al.

Source: Journal of Advances in Modeling Earth Systems. Feb2026, Vol. 18 Issue 2, p1-20. 20p.

Subject Terms: *Land use, *Temperature effect, *Climate change, Atmospheric models, Environmental history, Signal separation, Heat transfer

Observed and Modeled Trends in Downward Surface Shortwave Radiation Over Land: Drivers and Discrepancies.

Authors: McKinnon, Karen A. Simpson, Isla R.

Source: Geophysical Research Letters. 12/28/2025, Vol. 52 Issue 24, p1-11. 11p.

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The CESM2 Single-Forcing Large Ensemble and Comparison to CESM1: Implications for Experimental Design.

Authors: Simpson, Isla R. Rosenbloom, Nan Danabasoglu, Gokhan et al.

Source: Journal of Climate. Sep2023, Vol. 36 Issue 17, p5687-5711. 25p. 1 Chart, 11 Graphs.

Use-Inspired, Process-Oriented GCM Selection: Prioritizing Models for Regional Dynamical Downscaling.

Authors: Goldenson, Naomi Leung, L. Ruby Mearns, Linda O. et al.

Source: Bulletin of the American Meteorological Society; Sep2023, Vol. 104 Issue 9, pE1619-E1629, 11p

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Mechanisms behind the Springtime North Pacific ENSO Teleconnection Bias in Climate Models.

Authors: Chen, Ruyan Simpson, Isla R. Deser, Clara et al.

Source: Journal of Climate. Dec2022, Vol. 35 Issue 23, p4091-4110. 20p. 4 Charts, 2 Graphs, 12 Maps.

Water Year 2021 Compound Precipitation and Temperature Extremes in California and Nevada.

Authors: Hoell, Andrew Quan, Xiao-Wei Hoerling, Martin et al.

Source: Bulletin of the American Meteorological Society; Dec2022, Vol. 103 Issue 12, pE2905-E2911, 7p

Improvements in Wintertime Surface Temperature Variability in the Community Earth System Model Version 2 (CESM2) Related to the Representation of Snow Density.

Authors: Simpson, Isla R. Lawrence, David M. Swenson, Sean C. et al.

Source: Journal of Advances in Modeling Earth Systems. Apr2022, Vol. 14 Issue 4, p1-25. 25p.

Emergent Constraints on the Large-Scale Atmospheric Circulation and Regional Hydroclimate: Do They Still Work in CMIP6 and How Much Can They Actually Constrain the Future?

Authors: Simpson, Isla R. McKinnon, Karen A. Davenport, Frances V. et al.

Source: Journal of Climate. Aug2021, Vol. 34 Issue 15, p6355-6377. 23p. 1 Chart, 12 Graphs, 1 Map.

Confronting Earth System Model trends with observations.

Authors: Simpson, Isla R. Shaw, Tiffany A. Ceppi, Paulo et al.

Source: Science Advances. 3/11/2025, Vol. 11 Issue 11, p1-20. 20p.

Model Biases in the Simulation of the Springtime North Pacific ENSO Teleconnection.

Authors: RUYAN CHEN SIMPSON, ISLA R. DESER, CLARA et al.

Source: Journal of Climate. Dec2020, Vol. 33 Issue 23, p9985-10002. 18p.

Recent and near‐term future changes in impacts‐relevant seasonal hydroclimate in the world's Mediterranean climate regions.

Authors: Seager, Richard Wu, Yutian Cherchi, Annalisa et al.

Source: International Journal of Climatology. Sep2024, Vol. 44 Issue 11, p3792-3820. 29p.

Subject Terms: *Atmospheric circulation, *Ocean temperature, *Mediterranean climate, *Climate change, Spring

Northern Hemisphere Stratosphere‐Troposphere Circulation Change in CMIP6 Models: 2. Mechanisms and Sources of the Spread.

Authors: Karpechko, Alexey Yu. Wu, Zheng Simpson, Isla R. et al.

Source: Journal of Geophysical Research. Atmospheres. 7/16/2024, Vol. 129 Issue 13, p1-23. 23p.

Subject Terms: *Climate change models, *Greenhouse gases, Polar vortex, Atmospheric models, Rossby waves, Standing waves