西藏墨竹工卡积雪时空分布特征分析

Analysis of the Temporal and Spatial Distribution Characteristics of the Snow Cover in Maizhokunggar in Tibet

利用MODIS10A2积雪产品数据（2001～2013年）对西藏墨竹工卡县积雪的时间变化及其空间分布特征进行分析,结果表明,西藏墨竹工卡地区墨竹工卡98.62％的区域积雪持续日数是不超过180d;积雪随着海拔升高,持续天数也在增加;积雪覆盖率年际变化趋势不明显,但季节性差异大.

By using MODISIOA2 snow product data （2001-2013）, the temporal and spatial distribution characteristics of snow accumulalion in Maizhokunggar County, Tibet were analyzed. The results showed that the 98.62% of Tibetan Maizhokunggar area snow lasting days is not more than 180 days; with inereasing ahitude, snow lasting days has increased; snow cover annual variation trend is not obvious, hut the seasonal difference is large.