Stratospheric water vapor feedback

被引：255

作者：

Dessler, A. E. ^{[1
]}

Schoeberl, M. R. ^{[2
]}

Wang, T. ^{[1
]}

Davis, S. M. ^{[3
,4
]}

Rosenlof, K. H. ^{[3
]}

机构：

[1] Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA

[2] Sci & Technol Corp, Columbia, MD 21046 USA

[3] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA

[4] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2013年 / 110卷 / 45期

基金：

美国国家科学基金会;

关键词：

climate change; lowermost stratosphere; overworld; QUASI-BIENNIAL OSCILLATION; BREWER-DOBSON CIRCULATION; TROPICAL TROPOPAUSE; INTERANNUAL VARIABILITY; GENERAL-CIRCULATION; CLIMATE SENSITIVITY; MODEL; TROPOSPHERE; OZONE; PERTURBATIONS;

D O I：

10.1073/pnas.1310344110

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

We show here that stratospheric water vapor variations play an important role in the evolution of our climate. This comes from analysis of observations showing that stratospheric water vapor increases with tropospheric temperature, implying the existence of a stratospheric water vapor feedback. We estimate the strength of this feedback in a chemistry- climate model to be + 0.3 W/( m(2).K), which would be a significant contributor to the overall climate sensitivity. One- third of this feedback comes from increases in water vapor entering the stratosphere through the tropical tropopause layer, with the rest coming from increases in water vapor entering through the extratropical tropopause.

引用

页码：18087 / 18091

页数：5

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