Variation in Summer Rainfall in North China during the Period 1956-2007 and Links with Atmospheric Circulation |
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Authors: | LIANG Feng TAO Shiyan WEI Jie BUEH Cholaw |
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Institution: | LIANG Feng1'2,TAO Shiyan2,WEI Jie2 . and BUEH Cholaw2 1Beijing Meteorological Bureau,China Meteorological Administration,Beijing 100089 2Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029 |
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Abstract: | Using gauge precipitation data and NCEP-NCAR reanalysis data, the interdecadal changes in summer precipitation during the period 1956-2007 in North China and the link with atmospheric circulation change over Eurasia are studied. Results show that precipitation amounts decreased by 16.2 mm per decade, which was attributable to a significant reduction in precipitation frequency. Contrary wave trains were found in the subtropical westerly jet (wave guide) over Eurasia for the wet and dry years of North China. ... |
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Keywords: | North China precipitation frequency wave trains downstream development water vapor transportation latent heat sensible heat |
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