Trend of Surface Albedo Changes in China in Last Decade
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Abstract:
EOSMODIS satellite data on surface albedo (MCD43C3 on Level3) are used to analyze the regional distribution of surface albedo features in China, as well as the interannual and quarterly trends from March 2000 to February 2009. The results show that the regional surface albedo in China was high in the west and low in the east, and varied with altitude and latitude; for nearly 10 years in most areas of China, the annual mean surface albedo had an increase trend, with the southeastern China being most extensive and highaltitude and high latitude regions being growthoriented; in the Hetao region and Songliao Plain, the surface albedo decreased most quickly. As for seasonal change, there was the most extensive area with variation trends in winter. There were sharply increase trends (00005 to 0001 per year) in the southeastern China in four seasons, and significantly decreasing trends in Hetao, except in winter. In autumn and winter, there was the extensive area with significant variation trends in the Tibetan Plateau, decreasing in the western hinterland of the plateau and increasing around the mountain glaciers.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.