Discrepancies between global reanalyses and observations in the interdecadal variations of Southeast Asian cold surge

Wan Ru Huang, Shih Yu Wang, Johnny C.L. Chan

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The Siberian High (SH) is an important part of the East Asian winter monsoon (EAWM) and is closely linked to cold surges. Previous studies revealed a pronounced decline in the strength of the SH during the late 20th century accompanied with a coherent decrease in the frequency of cold surges. However, studies using different data sets yielded different behaviour of the trends. Here we examine the interdecadal variations of the SH and cold surges deduced from six modern global reanalysis data sets. Discrepancies in such variations are found between the reanalysis data sets and observations as well as among different reanalysis data sets. Such discrepancies contribute to inconsistent interdecadal variations of the cold surge frequency in different reanalysis data sets. Potential causes of this situation are discussed.

Original languageEnglish
Pages (from-to)2272-2280
Number of pages9
JournalInternational Journal of Climatology
Volume31
Issue number15
DOIs
Publication statusPublished - 2011 Dec

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Keywords

  • Cold surge
  • East Asian winter monsoon
  • Interdecadal variation
  • Siberia High

ASJC Scopus subject areas

  • Atmospheric Science

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