globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-013-1955-x
Scopus记录号: 2-s2.0-84906725328
论文题名:
Importance of instantaneous radiative forcing for rapid tropospheric adjustment
作者: Ogura T.; Webb M.J.; Watanabe M.; Lambert F.H.; Tsushima Y.; Sekiguchi M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期:2017-05-06
起始页码: 1409
结束页码: 1421
语种: 英语
英文关键词: Climate sensitivity ; General circulation model ; Lower tropospheric stability ; Radiative forcing ; Tropospheric adjustment
英文摘要: To better understand CFMIP/CMIP inter-model differences in rapid low cloud responses to CO2 increases and their associated effective radiative forcings, we examined the tropospheric adjustment of the lower tropospheric stability (LTS) in three general circulation models (GCMs): HadGEM2-A, MIROC3.2 medres, and MIROC5. MIROC3.2 medres showed a reduction in LTS over the sub-tropical ocean, in contrast to the other two models. This reduction was consistent with a temperature decrease in the mid-troposphere. The temperature decrease was mainly driven by instantaneous radiative forcing (RF) caused by an increase in CO2. Reductions in radiative and latent heating, due to clouds, and in adiabatic and advective heating, also contribute to the temperature decrease. The instantaneous RF in the mid-troposphere in MIROC3.2 medres is inconsistent with the results of line-by-line (LBL) calculations, and thus it is considered questionable. These results illustrate the importance of evaluating the vertical profile of instantaneous RF with LBL calculations; improved future model performance in this regard should help to increase our confidence in the tropospheric adjustment in GCMs. © 2013 Springer-Verlag Berlin Heidelberg.
资助项目: JSPS, Japan Society for the Promotion of Science ; MEXT, Japan Society for the Promotion of Science
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54683
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作者单位: National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan; Met Office Hadley Centre, FitzRoy Road, Exeter, EX1 3PB, United Kingdom; Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8568, Japan; College of Engineering, Mathematics and Physical Sciences, University of Exeter, Harrison Building, North Park Road, Exeter, EX4 4QF, United Kingdom; Tokyo University of Marine Science and Technology, 2-1-6 Etchujima, Koto-ku, Tokyo, 135-8533, Japan

Recommended Citation:
Ogura T.,Webb M.J.,Watanabe M.,et al. Importance of instantaneous radiative forcing for rapid tropospheric adjustment[J]. Climate Dynamics,2014-01-01,43(2017-05-06)
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