利用2003-2005年卫星SSM/Ⅰ的每日雪深资料, 1996-2004年冬、春的NOAA/AVHRR积雪旬覆盖面积资料, 以及1996-2002年新疆北部11个地面台站的积雪观测资料, 研究了近年新疆积雪的时空分布特征。结果表明: 新疆积雪年际变化大, 近年最大积雪日数和面积出现在2000-2001年。积雪主要集中在天山山脉以北地区, 该区大部分地区每年冬、春积雪覆盖旬数超过了15旬, 在西南昆仑山脉地区也有小范围的高值区, 部分年份的冬、春积雪覆盖旬数超过了15旬。另外, 山区积雪覆盖旬数明显高于盆地, 准葛尔盆地积雪覆盖旬数明显多于塔里木盆地。积雪年际变化较显著的地区在中部天山山脉地区、西南部昆仑山脉地区和西部阿尔金山脉地区, 均超过了6旬。积雪深度在每年的2月达到最高。高值出现在阿勒泰地区、塔城、天山北麓、准噶尔盆地南缘和南疆西部的托什干河流域一带, 达到近40 cm。

Based on two kinds of remote sensing data(snow depth data of SSM/Ⅰ from 2003 to 2005, snow cover data of NOAA/AVHRR from 1996 to 2004) and 11 weather observation station data in Northern Xinjiang from 1996 to 2002, the temporal and spatial distributions of snow cover and snow depth in Xinjiang region were analyzed. The result showed that the snow cover days fluctuated from year to year, the maximum snow cover days occurred in 2000—2001. Spatially, the northern part of Tianshan Mountains was the primary snow cover area, and the snow cover areas exceed 15 ten-days in every winter-half year. There was also a high value in the Kunlun Mountains region in Southwest part of Xinjiang, and snow cover areas exceed 15ten-days in some winter-half years. It was found that snow cover days in mountain region were obviously more than that in plain region in Xinjiang region, and Zhunge'r Basin was more than Tarim basin. The remarkable areas for the variation of the snow cover over the Xinjiang area was in the Tianshan Mountains, Kunlun Mountains and Altyn Tagh Mountains. All the areas covered by snow were past six ten-days. The maxium snow cover occurredin February in Xinjiang region, the distribution area of high snow depth values over 40 cm located in Altay, Tachen Basin, Northern part of Tianshan Mountains, the south edge of Zhunge'r Basin, and Tashigan river.