Synoptic-scale controls of persistent low temperature and icy weather over southern China in January 2008

Research output: Conference Papers (RGC: 31A, 31B, 32, 33)32_Refereed conference paper (no ISBN/ISSN)Not applicablepeer-review

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Author(s)

  • W Chen
  • J LING
  • J. G. Pinto
  • Y SHAO

Related Research Unit(s)

Detail(s)

Original languageEnglish
Publication statusPublished - 8 Nov 2009

Conference

TitleFourth Japan-China-Korea Joint Conference on Meteorology
PlaceJapan
CityTsukuba
Period8 - 10 November 2009

Abstract

In January 2008, central and southern China experienced persistent low temperatures, freezing rain, and snow. The large-scale conditions associated with the occurrence and development of these snowstorms are examined in order to identify the key synoptic controls leading to this event. Three main factors are identified: 1) the persistent blocking high over Siberia, which remained quasi-stationary around 65°E for 3 weeks, led to advection of dry and cold Siberian air down to central and southern China; 2) a strong persistent southwesterly flow associated with the western Pacific subtropical high led to enhanced moisture advection from the Bay of Bengal into central and southern China; and 3) the deep inversion layer in the lower troposphere associated with the extended snow cover over most of central and southern China. The combination of these three factors is likely responsible for the unusual severity of the event, and hence a long return period.

Citation Format(s)

Synoptic-scale controls of persistent low temperature and icy weather over southern China in January 2008. / Zhou, Wen; Chan, J. C. L.; Chen, W; LING, J; Pinto, J. G.; SHAO, Y.

2009. Paper presented at Fourth Japan-China-Korea Joint Conference on Meteorology, Tsukuba, Japan.

Research output: Conference Papers (RGC: 31A, 31B, 32, 33)32_Refereed conference paper (no ISBN/ISSN)Not applicablepeer-review