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Simulation of the surfa radiation in the Loess Plateau on CMIP5 multimodel ensemele

Journal

Journal of Arid Land Resources and Environment

Authors

Zheng Zhiyuan, Wei Zhigang, Li Zhenchao, Liu Hui, Wei Hong, Zhao Wei

Year

2014

Volume

28

Issue

11

Pages

152-157

Corresponding Author

Wei, ZG

Request Full Text

wzg@bnu.edu.cn

Keywords

CMIP5; CMIP5; Loess Plateau; surface radiation; variation trend; effect factors

Abstract

Using the 20 global climate model simulation results provided by WCRP CMIP5 and multi model ensemble analysis method,the simulating surface radiation in the Loess Plateau in China from 1861 to 2005 were analyzed. The results show the surface short-wave radiation and net surface radiation had been decreasing,but the long-wave radiation had been increasing from 1861 to 2005. The decreasing value of surface downwelling and upwelling solar radiation were about 6. 73W·m ~(-2)·100a ~(-1)and 1. 69W·m ~(-2)·100a ~(-1),respectively. The increasing value of surface downwelling and upwelling long-wave radiation were about 5. 3W·m ~(-2)·100a ~(-1)and 2. 53W·m ~(-2)·100a ~(-1),respectively. The decreasing of surface net radiation was about 2. 26W·m ~(-2)· 100a ~(-1). The surface downwelling short-wave solar radiation was the main factor causing the net surface radiation change. Global warming and temperature rising have caused many climate factors changed,including cloud area fraction increasing,precipitation increasing,evaporation enhancing,surface soil moisture reducing,leaf area index increasing and snow cover area reducing,et al. With the surface radiation changing by these factors, climate system will be changed.
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