2002-2011年新疆积雪时空分布特征研究

doi:10.7522/j.issn.1000-0240.2013.0123

冰川冻土 ›› 2013, Vol. 35 ›› Issue (5): 1095-1102.doi: 10.7522/j.issn.1000-0240.2013.0123

2002-2011年新疆积雪时空分布特征研究

娄梦筠^1,2, 刘志红¹, 娄少明³, 戴睿¹

1. 成都信息工程学院资源环境学院, 四川成都 610225;
2. 新疆兴农网信息中心, 新疆乌鲁木齐 830002;
3. 乌鲁木齐气象卫星地面站, 新疆乌鲁木齐 830011

收稿日期:2013-01-07 修回日期:2013-07-03 出版日期:2013-10-25 发布日期:2013-11-07
作者简介:娄梦筠(1988-),女,新疆乌鲁木齐人,2013年在成都信息工程学院获硕士学位,现主要从事遥感应用研究.E-mail:jenniferlou880221@163.com
基金资助:
新疆维吾尔自治区科技支撑项目(201133131)资助

Temporal and Spatial Distribution of Snow Cover in Xinjiang from 2002 to 2011

LOU Meng-yun^1,2, LIU Zhi-hong¹, LOU Shao-ming³, DAI Rui¹

1. College of Resources and Environment, Chengdu University of Information Technology, Chengdu Sichuan 610225, China;
2. Information Center of xjxnw.gov.cn (Xinjiang Xingnong Internet Web Site), Ürümqi Xinjiang 830002, China;
3. Ürümqi Meteorological Satellite Ground Station, Ürümqi Xinjiang 830011, China

Received:2013-01-07 Revised:2013-07-03 Online:2013-10-25 Published:2013-11-07
Contact: 刘志红,E-mail:wxzlzh@cuit.edu.cn E-mail:wxzlzh@cuit.edu.cn

摘要/Abstract

摘要： 基于2002-2011年的MODIS积雪产品数据, 对新疆积雪的年际变化特征、年内变化特征及空间分布特征进行了分析.结果表明: 年内积雪从10月中旬开始建立, 于1月面积达到最大, 7月面积达到最小.其中, 冬季积雪面积所占比例最大, 夏季最小. 2002-2011年新疆积雪面积总体上呈减少趋势. 其中, 春季和冬季为减少趋势;夏季的积雪由于其基本上都是高海拔的永久性积雪, 故比较稳定, 变化趋势不明显;秋季为上升趋势.新疆积雪空间分布极不均匀, 北疆积雪分布明显多于南疆.山区为积雪覆盖频次的高值区, 盆地为积雪覆盖频次的低值区.永久性积雪在阿尔泰山脉分布较少, 主要分布在天山山脉和昆仑山脉.就永久性积雪面积而言, 分布在海拔5 000~6 000 m的面积最大, 其次是海拔4 000~5 000 m, 再次是海拔6 000~7 000 m.

关键词: 积雪覆盖面积(SCA), 积雪分布, 永久性积雪, 积雪覆盖频次, 新疆

Abstract: Based on MODIS snow cover data from 2002 to 2011, the temporal and spatial distribution characteristics of the snow cover in Xinjiang are investigated. It is found that snow deposit starts in mid-October, and snow cover achieves the maximum depth in January and the minimum depth in July. In a year, snow-covered area (SCA) in winter is the largest, and that in summer is the least. The SCA in Xinjiang was decreasing from 2002 to 2011. Seasonally, there was a decreasing trend in spring and winter, no obvious changing trend in summer, and an increasing trend in fall. In summer, only permanent snow cover existed in high altitudes, which was rather stable. Spatially, distribution of SCA was uneven in Xinjiang. The SCA in North Xinjiang is more than that in the South Xinjiang. High frequency regions of snow cover were located in mountains, and low frequency regions in basins. The permanent SCA was the maximum in the Kunlun Mountains, followed by the Tianshan Mountains and was the minimum in the Altay Mountains. Looking along altitude, the permanent SCA was the maximum in the altitude from 5 000 m to 6 000 m, followed by that from 4 000 m to 5 000 m and then from 6 000 m to 7 000 m.

Key words: snow-covered area (SCA), snow cover distribution, permanent snow cover, snow cover frequency, Xinjiang

中图分类号:

P426.63⁺5

娄梦筠, 刘志红, 娄少明, 戴睿. 2002-2011年新疆积雪时空分布特征研究[J]. 冰川冻土, 2013, 35(5): 1095-1102.

LOU Meng-yun, LIU Zhi-hong, LOU Shao-ming, DAI Rui. Temporal and Spatial Distribution of Snow Cover in Xinjiang from 2002 to 2011[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2013, 35(5): 1095-1102.

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2002-2011年新疆积雪时空分布特征研究

Temporal and Spatial Distribution of Snow Cover in Xinjiang from 2002 to 2011

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