Characteristics of Climate Change in Shijiazhuangduring Recent 55 Years
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Abstract:
The characteristics of climate change in Shjjiazhuang are analyzed on the basis of the monthly air temperature and monthly rainfall data of the Shijiazhuang station from 1951 to 2005 by using the deviation analysis, trend analysis, wavelet transform and abrupt change analysis methods. The results show: (1) The temperature variability was mostly notable in winter and was small in summer and autumn. (2) There were obvious linearly increasing trends in the annual temperature and temperatures in four seasons, obviously in spring and winter. The warming in the recent 55 years can be attributed to the spring and winter temperature increase. There was no linear variation trend in annual precipitation and precipitation in four seasons. (3) The periodicities of annual temperature and temperatures in four seasons were not obvious, but there was periodicity in precipitation changes. (4) There were obvious abrupt changes in annual temperature and temperatures in four seasons, but the same changes are not found in annual rainfall and rainfall in each season.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.