Spatial-Temporal Characteristics of Regional Extreme Low Temperature Events in China during 1960-2009

被引：0

作者：

WANG Xiao-Juan ^{[1
,2
]}

GONG Zhi-Qiang ^{[3
]}

REN Fu-Min ^{[3
]}

FENG Guo-Lin ^{[3
]}

机构：

[1] Department of Atmospheric and Sciences,Lanzhou University

[2] College of Physics and Electronic Project,Changshu Institute of Technology

[3] National Climate Center,China Meteorological Administration

来源：

AdvancesinClimateChangeResearch | 2012年 / 3卷 / 04期

基金：

中国国家自然科学基金;

关键词：

regional extreme low temperature events; spatial-temporal features; turning point; frequency distribution;

D O I：

暂无

中图分类号：

P468.02 [];

学科分类号：

0706 ; 070601 ;

摘要：

An objective identification technique is used to detect regional extreme low temperature events(RELTE) in China during 1960-2009.Their spatial-temporal characteristics are analyzed.The results indicate that the lowest temperatures of RELTE,together with the frequency distribution of the geometric latitude center,exhibit a double-peak feature.The RELTE frequently happen near the geometric area of 30 N and 42 N before the mid-1980s,but shifted afterwards to 30 N.During 1960-2009,the frequency,intensity,and the maximum impacted area of RELTE show overall decreasing trends.Due to the contribution of RELTE,with long duration and large spatial range,which account for 10% of the total RELTE,there is a significant turning point in the late 1980s.A change to a much more steady state after the late 1990s is identified.In addition,the integrated indices of RELTE are classified and analyzed.

引用

页码：186 / 194

页数：9