The observed sensitivity of the global hydrological cycle to changes in surface temperature

被引：27

作者：

Arkin, Phillip A. ^{[1
]}

Smith, Thomas M. ^{[2
]}

Sapiano, Mathew R. P. ^{[3
]}

Janowiak, John ^{[1
]}

机构：

[1] Univ Maryland, CICS ESSIC, College Pk, MD 20740 USA

[2] NOAA STAR SCSB, College Pk, MD 20740 USA

[3] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA

来源：

ENVIRONMENTAL RESEARCH LETTERS | 2010年 / 5卷 / 03期

关键词：

global change hydrological cycle; PRECIPITATION;

D O I：

10.1088/1748-9326/5/3/035201

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Climate models project large changes in global surface temperature in coming decades that are expected to be accompanied by significant changes in the global hydrological cycle. Validation of model simulations is essential to support their use in decision making, but observing the elements of the hydrological cycle is challenging, and model-independent global data sets exist only for precipitation. We compute the sensitivity of the global hydrological cycle to changes in surface temperature using available global precipitation data sets and compare the results against the sensitivities derived from model simulations of 20th century climate. The implications of the results for the global climate observing system are discussed.

引用

页数：6

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