Different long-term trends of extra-tropical cyclones and windstorms in ERA-20C and NOAA-20CR reanalyses

被引：53

作者：

Befort, Daniel J. ^{[1
]}

Wild, Simon ^{[1
]}

Kruschke, Tim ^{[2
]}

Ulbrich, Uwe ^{[3
]}

Leckebusch, Gregor C. ^{[1
]}

机构：

[1] Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England

[2] GEOMAR Helmholtz Ctr Ocean Res Kiel, Dept Ocean Circulat & Climate Dynam, Res Unit Marine Meteorol, Kiel, Germany

[3] Free Univ Berlin, Inst Meteorol, Berlin, Germany

来源：

ATMOSPHERIC SCIENCE LETTERS | 2016年 / 17卷 / 11期

关键词：

extra-tropical cyclones; windstorm events; reanalysis data; 20TH-CENTURY REANALYSIS; NORTH-ATLANTIC; TRACKING ALGORITHM; WINTER; 2013/14; CLIMATE MODEL; STORM; EVENTS; FREQUENCY; ENSEMBLE; IDENTIFICATION;

D O I：

10.1002/asl.694

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

NOAA 20th century and ERA-20C reanalysis datasets are evaluated regarding the representation of extra-tropical cyclones and windstorms over the Northern and Southern Hemisphere during the respective 6-month winter seasons. The results indicate substantial differences in low-frequency variability between the two datasets - especially in the first half of the 20th century - expressed in different signs and/or magnitudes of long-term trends. This is hampering a reliable analysis of real long-term trends of cyclone and windstorm activity. However, higher-frequency variability is in good agreement between both datasets especially for the Northern Hemisphere.

引用

页码：586 / 595

页数：10

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