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Title of Journal: Adv Atmos Sci

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Abbravation: Advances in Atmospheric Sciences

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SP Science Press

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1861-9533

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Identifying regional prolonged low temperature eve

Authors: Zongjie Zhang Weihong Qian
Publish Date: 2011/02/04
Volume: 28, Issue: 2, Pages: 338-351
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Abstract

This study examined regional prolonged low temperature PLT events in China from the observational station data for the period 1960–2008 using the new criteria The new definition of a site PLT event is that the daily minimum temperature does not exceed the 10th percentile threshold of the local daily minimum temperature climatology for at least 5 days at a station The regional PLT event is defined as at least five adjacent stations exhibiting site PLT simultaneously for 5 d Under the new definition 552 regional PLT events were identified and three indices duration extent and intensity as well as a comprehensive index CI were used to quantify the event severity In addition geographical patterns and temporal variations of regional PLT events were investigated using three event categories strong moderate and weak Spatially strong events were mainly located in the north of Xinjiang and along the Yangtze River to the south of the Yangtze River moderate events occurred in Xinjiang and south of the Yangtze River and weak events occurred south of the Yellow River The variation for the annual frequency of regional PLT events in China in the last 49 years showed a significant decreasing trend with a rate of −199 times per decade and the significant transition decade was the 1980s

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  10. Impacts of land surface and sea surface temperatures on the onset date of the South China Sea summer monsoon
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  13. A case study on the role of water vapor from Southwest China in downstream heavy rainfall
  14. Simulation of a persistent snow storm over southern China with a regional atmosphere-ocean coupled model
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