ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 39 Issue 9 > 2013,39(9):1197-1203. DOI:10.7519/j.issn.1000-0526.2013.09.016 Prev Next
Winter Precipitation Anomalies in Hebei Province and the Relations with Atmospheric Circulation and Sea Surface Temperature
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Abstract:
Using winter precipitation data from 73 meteorological stations in Hebei Province during 1961-2009, NCEP/NCAR reanalysis data and NOAA SST data of the Pacific Ocean during the same period, features of precipitation anomalies in Hebei Province in winter and their relations with the atmospheric circulation and SSTA of the Pacific Ocean are analyzed with the Singular Value Decomposition (SVD) analysis method, and other statistical methods. The results indicate that winter precipitation in Hebei has the characteristics of interdecadal and periodic variations. In the scale within a decade, 8 to 10 year or 2 to 3 year periodic changes in winter have been found in the recent 49 years. When the 500 hPa height field over East Asia in winter shows the positive, negative and positive East Asia-Pacific (EAP) teleconnection pattern from low to high latitudes, Hebei receives more precipitation than normal and the most remarkable areas are in Cangzhou and the eastern part of Chengde. When the distribution pattern of SST of the North Pacific shows PDO positive phase and the central equatorial Pacific distribution of SSTA appears to be the pattern of El Ni〖AKn~D〗o, the winter precipitation in Hebei becomes even more especially in Xingtai, Handan and Cangzhou.
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