globalchange  > 气候减缓与适应
DOI: 10.1175/JCLI-D-17-0328.1
Scopus记录号: 2-s2.0-85040572273
论文题名:
Widening of the Hadley Cell from Last Glacial Maximum to future climate
作者: Son S.-W.; Kim S.-Y.; Min S.-K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期:1
起始页码: 267
结束页码: 281
语种: 英语
英文关键词: Climate change ; General circulation models ; Hadley circulation ; Paleoclimate
Scopus关键词: Climate models ; Clouds ; Glacial geology ; Global warming ; Climate model simulations ; Coupled Model Intercomparison Project ; Equilibrium simulations ; General circulation model ; Hadley circulation ; Model inter comparisons ; Paleoclimates ; Surface air temperatures ; Climate change ; air temperature ; atmospheric general circulation model ; climate modeling ; climate variation ; CMIP ; Hadley cell ; Last Glacial Maximum ; paleoclimate
英文摘要: The Hadley cell (HC) change from paleoclimate to future climate is examined by comparing coupled model simulations archived for the Paleoclimate Modeling Intercomparison Project phase 3 (PMIP3) and phase 5 of the Coupled Model Intercomparison Project (CMIP5). Specifically, HC width and strength are evaluated using 100-yr equilibrium simulations for the Last Glacial Maximum (LGM), preindustrial (PI), and extended concentration pathway 4.5 (ECP4.5) conditions. Where available, ECP8.5 simulations are also examined to increase the sample size. All models show a systematic widening of the HC from the LGM to the PI and to the ECP4.5 and ECP8.5 simulations. Such widening, which is found in both hemispheres with more robust change in the Southern Hemisphere (SH) than in the Northern Hemisphere (NH), is significantly correlated with global-mean surface air temperature change and the associated static stability change in the subtropics. Based on the zero-crossing latitude of 500-hPa mass streamfunction, about 4.5° latitude widening of the HC results from global warming of 10°C. HC strength also exhibits a systematic weakening in the NH. However, in the SH, HC strength shows a rather minor change from LGM to ECP4.5 conditions because of the cancellation between HC weakening during the austral summer-fall and its strengthening during the spring. This result, which suggests no systematic relationship between HC width and strength changes, is discussed in the context of quasigeostrophic zonal-mean dynamics. Overall findings are also compared with recent studies that are based on transient climate model simulations. © 2018 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111707
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, South Korea

Recommended Citation:
Son S.-W.,Kim S.-Y.,Min S.-K.. Widening of the Hadley Cell from Last Glacial Maximum to future climate[J]. Journal of Climate,2018-01-01,31(1)
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