Key Zone, Key Period and Key Factor Influencing Climate in Northeast China

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  • 1. Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110016, China;
    2. School of Atmospheric Sciences, Nanjing University, Nanjing 210093, China

Received date: 2010-10-29

  Revised date: 2010-12-09

  Online published: 1997-08-20

Abstract

Based on air temperature and precipitation data in Northeast China during 1956 to 2007 as well as the related literatures at home and abroad, the key zone, key period and key factor influencing summer and winter air temperature and summer precipitation were analyzed and summarized. Summer precipitation often occurs in Northeast China under some circumfluence conditions, such as the polar vortex oscillation, the prevailing East Asia blocking high, the westward or northward subtropical high, the strong westerly jet center over Tibetan Plateau. On the other hand, low temperature in summer often appears in Northeast China when height field is negative anomaly over Iran high and South Asia high regions, polar vortex center intensity of last October is normal and strong, subtropical high intensity was weak and its location was eastward or southward in summer. Colder/warmer winter in Northeast China is related with the strong/weak Siberian high and Aleutian low, low/high prophase sea surface temperature of North Atlantic.

Cite this article

SUN Feng-hua, LI Li-guang, ZHANG Yao-cun . Key Zone, Key Period and Key Factor Influencing Climate in Northeast China[J]. SCIENTIA GEOGRAPHICA SINICA, 2011 , 31(8) : 911 -916 . DOI: 10.13249/j.cnki.sgs.2011.08.911

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