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Using Relative Humidity as a State Variable in Climate Feedback Analysis

delete2012-04-10
delete102
PRE
AI
I
Isaac M. Held *
K
Karen M. Shell
DOI:10.1175/JCLI-D-11-00721.1delete
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摘要

摘要

En 中文
An approach to climate change feedback analysis is described in which tropospheric relative humidity replaces specific humidity as the state variable that, along with the temperature structure, surface albedos, and clouds, controls the magnitude of the response of global mean surface temperature to a radiative forcing. Despite being simply a regrouping of terms in the feedback analysis, this alternative perspective has the benefit of removing most of the pervasive cancellation between water and lapse-rate feedbacks seen in models. As a consequence, the individual feedbacks have less scatter than in the traditional formulation. The role of cloud feedbacks in controlling climate sensitivity is also reflected more clearly in the new formulation.
Keyword:
TROPOSPHERIC ADJUSTMENT
MODEL
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期刊

Journal of Climate 封面图
Journal of Climate
IF:
4
论文数:
1.4W
被引数:
5.9W

机构

N
national oceanic atmospheric admin (noaa) - usa
学者数:
1.4W
论文数: 1.1W
被引数: 10
O
Oregon State University
学者数:
1.7W
论文数: 1.5W
被引数: 2.4W
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