Zobrazeno 1 - 10
of 240
pro vyhledávání: '"Isla R. Simpson"'
Publikováno v:
npj Climate and Atmospheric Science, Vol 7, Iss 1, Pp 1-10 (2024)
Abstract Southern Hemisphere (SH) storminess has increased in the satellite era and recent work suggests comprehensive climate models significantly underestimate the trend. Here, we revisit this reanalysis-model trend discrepancy to better understand
Externí odkaz:
https://doaj.org/article/f586354c1f5745f7a1bdc6b729a5d4b7
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 16, Iss 7, Pp n/a-n/a (2024)
Abstract Canonical understanding based on general circulation models (GCMs) is that the atmospheric circulation response to midlatitude sea‐surface temperature (SST) anomalies is weak compared to the larger influence of tropical SST anomalies. Howe
Externí odkaz:
https://doaj.org/article/c2c662f12d53404caeb27f1eef303942
Autor:
Stephen G. Yeager, Ping Chang, Gokhan Danabasoglu, Nan Rosenbloom, Qiuying Zhang, Fred S. Castruccio, Abishek Gopal, M. Cameron Rencurrel, Isla R. Simpson
Publikováno v:
npj Climate and Atmospheric Science, Vol 6, Iss 1, Pp 1-13 (2023)
Abstract The impact of increased model horizontal resolution on climate prediction performance is examined by comparing results from low-resolution (LR) and high-resolution (HR) decadal prediction simulations conducted with the Community Earth System
Externí odkaz:
https://doaj.org/article/19ec71ab725943b2bae92b41a4a769a4
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 22, Pp n/a-n/a (2023)
Abstract The variability of the summer North Pacific Subtropical High (NPSH) has substantial socioeconomic impacts. However, state‐of‐the‐art climate models significantly disagree on the response of the NPSH to anthropogenic warming. Inter‐mo
Externí odkaz:
https://doaj.org/article/4024c1b0dc854691ae205a12f53d2eec
Autor:
Karen A. McKinnon, Isla R. Simpson
Publikováno v:
Geophysical Research Letters, Vol 49, Iss 18, Pp n/a-n/a (2022)
Abstract The 2021 Pacific Northwest heatwave featured record‐smashing high temperatures, raising questions about whether extremes are changing faster than the mean, and challenging our ability to estimate the probability of the event. Here, we iden
Externí odkaz:
https://doaj.org/article/ecdc2f86154f4bbe9cfef130682b712d
Autor:
Doug M. Smith, Nathan P. Gillett, Isla R. Simpson, Panos J. Athanasiadis, Johanna Baehr, Ingo Bethke, Tarkan A. Bilge, Rémy Bonnet, Olivier Boucher, Kirsten L. Findell, Guillaume Gastineau, Silvio Gualdi, Leon Hermanson, L. Ruby Leung, Juliette Mignot, Wolfgang A. Müller, Scott Osprey, Odd Helge Otterå, Geeta G. Persad, Adam A. Scaife, Gavin A. Schmidt, Hideo Shiogama, Rowan T. Sutton, Didier Swingedouw, Shuting Yang, Tianjun Zhou, Tilo Ziehn
Publikováno v:
Frontiers in Climate, Vol 4 (2022)
Multi-annual to decadal changes in climate are accompanied by changes in extreme events that cause major impacts on society and severe challenges for adaptation. Early warnings of such changes are now potentially possible through operational decadal
Externí odkaz:
https://doaj.org/article/c105c06136f345678b8ae3d3bbac69b9
Autor:
Isla R. Simpson, David M. Lawrence, Sean C. Swenson, Cecile Hannay, Karen A. McKinnon, John E. Truesdale
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 14, Iss 4, Pp n/a-n/a (2022)
Abstract The Community Earth System Model (CESM) is widely used for the prediction and understanding of climate variability and change. Accurate simulation of the behavior of near surface air temperature (T2m) is critical in such a model for addressi
Externí odkaz:
https://doaj.org/article/abbfb1f3867d426f828cb63739b58e3c
Publikováno v:
Journal of Climate. 36:1653-1678
Understanding the roles of land surface conditions and atmospheric circulation on continental daily temperature variance is key to improving predictions of temperature extremes. Evaporative resistance (rs, hereafter), a function of the land cover typ
Publikováno v:
Journal of Climate. 36:865-884
In this study, observations and simulations are used to investigate the mechanisms behind the different surface responses over the North Pacific and North Atlantic basins in response to sudden stratospheric warmings associated with a polar-night jet
Publikováno v:
Journal of Climate. 35:8031-8048
Extreme heat events are a threat to human health, productivity, and food supply, so understanding their drivers is critical to adaptation and resilience. Anticyclonic circulation and certain quasi-stationary Rossby wave patterns are well known to coi