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全球变暖背景下极端降水变化率与气温的响应关系

章杰 鱼京善 来文立

北京师范大学学报(自然科学版)2017,Vol.53Issue(6):722-726,5.
北京师范大学学报(自然科学版)2017,Vol.53Issue(6):722-726,5.DOI:10.16360/j.cnki.jbnuns.2017.06.014

全球变暖背景下极端降水变化率与气温的响应关系

Response of global warming to extreme precipitation increase over China

章杰 1鱼京善 1来文立1

作者信息

  • 1. 北京师范大学水科学研究院,100875,北京
  • 折叠

摘要

Abstract

The whole of China was selected as the study area in this study.Data of precipitation and temperature from 1960-2013 were used to analyze correlation between potential precipitation (saturation vapour pressure) and extreme precipitation with global warming.Change rate of saturated vapor pressure (β) and change rate of extreme precipitation (α) were found to be 9.3%· ℃-1 and 6.4%· ℃-1 respectively.Variation rate of extreme precipitation was found to be close to theoretical value (about 7% ·℃-1).An exponential relationship was established between β and mean temperature.Nine control groups were divided from 520 stations over China according to variations in annual temperature.Significant positive correlation between α and β (r=0.63) was established.The warmer group was found to have both higher α and β.Large scale spatial variations in extreme precipitation could be explained by variations in saturated vapor pressure at different temperatures.

关键词

全球变暖/极端降水/饱和水汽压

Key words

global warming/extreme precipitation/saturated vapor pressure

分类

天文与地球科学

引用本文复制引用

章杰,鱼京善,来文立..全球变暖背景下极端降水变化率与气温的响应关系[J].北京师范大学学报(自然科学版),2017,53(6):722-726,5.

基金项目

“十三五”国家重点研发计划重点专项基金资助项目(2016YFC0401308) (2016YFC0401308)

“十二五”科技支撑计划基金资助项目(2013BAB05B04) (2013BAB05B04)

中央高校基本科研业务费专项资金资助项目 ()

北京师范大学学报(自然科学版)

OA北大核心CSCDCSTPCD

0476-0301

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