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Inhomogeneous trends in the onset date of extreme hot days in China over the last five decades

Yang Yang Zhaohui Lin Lifeng Luo Yan Zhang Zhen Li

大气和海洋科学快报(英文版)2021,Vol.14Issue(6):33-40,8.
大气和海洋科学快报(英文版)2021,Vol.14Issue(6):33-40,8.

Inhomogeneous trends in the onset date of extreme hot days in China over the last five decades

Inhomogeneous trends in the onset date of extreme hot days in China over the last five decades

Yang Yang 1Zhaohui Lin 2Lifeng Luo 3Yan Zhang 1Zhen Li2

作者信息

  • 1. International Center for Climate and Environment Sciences,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China
  • 2. University of Chinese Academy of Sciences,Beijing,China
  • 3. Department of Geography,Environment,and Spatial Sciences,Michigan State University,East Lansing MI,USA
  • 折叠

摘要

Abstract

基于1960-2018年均一化日最高气温(Tmax)资料,发现中国大部分区域高温初始发生日期(FirstEHD)呈提前趋势,但华北地区一些站点呈推迟趋势,这主要由上述区域Tmax的长期变化趋势决定,但Tmax变率的影响也不可忽视.FirstEHD的变化趋势在1990s出现年代际转折,其中新疆,华北和长江流域在1990s前后FirstEHD变化趋势的符号发生变化,华南地区则表现为1990s前后FirstEHD趋势幅度的不同,但符号保持不变;研究表明FirstEHD趋势的年代际转折转折与大气环流年代际趋势的变化紧密相关.

关键词

极端高温日数/高温初始发生日期/长期趋势/年代际变化/最高气温变率

Key words

Extreme hot days/Onset date/Trend/Decadal change/Variability of maximum temperature

引用本文复制引用

Yang Yang,Zhaohui Lin,Lifeng Luo,Yan Zhang,Zhen Li..Inhomogeneous trends in the onset date of extreme hot days in China over the last five decades[J].大气和海洋科学快报(英文版),2021,14(6):33-40,8.

基金项目

This work was funded by the National Key Research and De-velopment Program of China[Grant number 2017YFA0604304]and the National Natural Science Foundation of China[Grant number 41661144032]. ()

大气和海洋科学快报(英文版)

OACSCD

1674-2834

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