Title: Variation of Sunshine Duration and Its Influencing Factors in Black Gobi Desert of China
Abstract:The variation characteristic of sunshine duration over Black Gobi Desert of China was analyzed on the basis of monthly sunshine duration series(1960-2011) from 11 surface meteorological stations.The r...The variation characteristic of sunshine duration over Black Gobi Desert of China was analyzed on the basis of monthly sunshine duration series(1960-2011) from 11 surface meteorological stations.The results indicated that although sunshine duration was decreasing markedly in most parts of China,in Black Gobi Desert,the variation of sunshine duration was steady and showed an insignificant trend with a decreasing rate of-2.0 h /10 a in recent 52 years,which was much less than that of surrounding areas.Among the four seasons,the sunshine duration showed an increasing tendency with a rate of 0.34 h /10 a in spring,but a negative trend occurred in other seasons,especially in winter,the decreasing trend was significant with a rate of-3.04 h /10 a.For different regions,annual sunshine hours variation was not the same,in the northern foot of the Tianshan Mountains and the western Qilian Mountains and the parts of west side of Alxa Plateau,the sunshine duration showed an decreasing tendency,but in the Hami basin,Dunhuang basin and most parts of Beishan,it showed an increasing tendency.The decrease of sunshine hours in Black Gobi Desert was closely related to obvious increase of annual precipitation and decrease of annual mean wind speed there.Read More
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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