Title: Spatial-Temporal and Decadal Change in Sunshine Resources from 1961 to 2010 in Yunnan
Abstract: Based on monthly sunshine duration data from 1961 to 2010 collected from 121 meteorological observation stations across Yunnan province, regional variation in these data were analyzed. We found that maximum sunshine duration was in March and the minimum was in July. In most parts of Yunnan, sunshine duration was more than 2000 hours. It was abundant in the west, and was relatively small in the east, and the south was greater than the north. The maximum center was located in the valley area of the Jinshajiang River basin, and the minimum center was located in northeastern Yunnan. Sunshine duration in Yunnan shows local change differences and asynchronism as it decreased in the north but increased in the south and decreased in the east and north of Ailaoshan but increased in the west and south. Sunshine duration reduced most in Kunming and increased most in Tengchong and Pu'er. The main distribution of Yunnan sunshine was wholeness; the second distribution was the southeast to the northwest, roughly less in the center and more on two sides. The distribution of sunshine showed obvious inter-annual and interdecadal variability, with a downward trend overall, and changed abruptly in 1985. The second distribution mainly presented a climate basic state and decadal variation, an overall increased trend and a catastrophe in 1995. In conclusion, changes in sunshine in Yunnan are synchronized with changes in precipitation and temperature.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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Cited By Count: 3
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