Analysis on Precipitation Characteristics in Xinjiang with EOF Method

JOURNAL OF DESERT RESEARCH ›› 2003, Vol. 23 ›› Issue (5): 554-559.

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Analysis on Precipitation Characteristics in Xinjiang with EOF Method

NAN Qing-hong, YANG Duo, YANG Qing

Institute of Desert Meteorology, China Meteorology Administration, Urumqi 830002, China

Received:2002-09-15 Revised:2002-10-20 Online:2003-10-20 Published:2003-10-20

Abstract

Abstract: With EOF Method,the precipitation data of January,April,July,October and annual average from 1960 to 1998 for 89 meteorological stations are used to deduce the distribution of character values and the temporal series of coefficients.According to the variance contribution of character values it was figured that the spatial distribution of several precipitation processes and the subdivision of annual precipitation change.Besides,the characteristics of annual precipitation change have been analyzed based on the deduced time coefficients.The study can provide a method and a basal figure type for the forecasting of annual and monthly climate.

Key words: Xinjiang, precipitation, spatial and temporal variation, regionalization

CLC Number:

P426.614

NAN Qing-hong, YANG Duo, YANG Qing. Analysis on Precipitation Characteristics in Xinjiang with EOF Method[J]. JOURNAL OF DESERT RESEARCH, 2003, 23(5): 554-559.

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Analysis on Precipitation Characteristics in Xinjiang with EOF Method

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