干旱区生态环境知识资源中心(Arid): MODIS雪深反演数学模型验证及分析

Arid

	MODIS雪深反演数学模型验证及分析
其他题名	Verification and analysis of mathematical model for retrieved snow depth based on MODIS data
	傅华 1; 李三妹 2; 黄镇 1; 沙依然 1; 李聪 1; 纪良 1
ISSN	1000-6060
出版年	2007
卷号	30 期号:6 页码:907-914
中文摘要	在MODIS卫星遥感积雪监测的基础上，利用雪深反演数学模型、积雪指数NDSI和多光谱阈值等相结合的方法，对2004年以来新疆北疆地区的积雪分布状况进行了反演和计算，并利用2004年11月～2005年3月冬季北疆地区气象台站雪深数据和2004年12月～2006年1月加密野外实测雪深数据，对反演雪深数据进行了验证及分析，北疆各地除塔城地区反演精度为83．2％以外，其它地区反演精度达85．2％以上，平均反演精度达86．2％；野外实测数据验证反演精度达92％以上。
英文摘要	This paper introduces a new mathematical model for retrieved snow depth using MODIS data. Based on the model ,the snow depths in the North of Xinjiang Uygur Autonomous Region of China since 2004 have been calculated and also tested using both the snow depth data from the meteorological stations of the same region from Nov. 2004 to Mar. 2005 and the field-measured snow depth data from Dec. 2004 to Jan. 2006. The results show the retrieved snow depth data is well correlated to the measured snow depth data, especially to the field-measured data. Although the snow depth data from the meteorological stations is not representative enough for the discrete distribution and city hot-island effect of the stations themselves, the retrieved snow depth data also has the same coherent variation trend as the field-measured snow depth data. Using snow depth data from the meteorological stations, the precision of the model in the north of Xinjiang reaches 85.2 percent except Tacheng Station＇s, whose precision amounts to 83.2 percent and the average precision is beyond 86.2 percent. Using the field-measured snow depth data, the precision of the model in the same area can reach 92 percent. The retieved snow depth model based on MODIS data, considering snow characteristics in different physical states（wet snow, dry snow, frozen snow, old snow, new snow and so on） and various complex underneath conditions including DEM（slope, plain, mountainous area）, land cover such as grassland, forest, cropland, desert, shrubland, wetland, tundra and so on, gets a high retrieval precision of the snow depths in the north of Xinjiang of China, which shows that it is feasible to perform snow depth calculation using the snow depth in-verse model based on MODIS data.
中文关键词	数学模型 ; 雪深反演 ; 验证
英文关键词	MODIS MODIS mathematical model, retrieved snow depth validation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:3039273
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220954
作者单位	1.新疆环境气象业务中心, 乌鲁木齐, 新疆 830002, 中国; 2.国家卫星气象中心, 北京 100081, 中国
推荐引用方式 GB/T 7714	傅华,李三妹,黄镇,等. MODIS雪深反演数学模型验证及分析[J],2007,30(6):907-914.
APA	傅华,李三妹,黄镇,沙依然,李聪,&纪良.(2007).MODIS雪深反演数学模型验证及分析.,30(6),907-914.
MLA	傅华,et al."MODIS雪深反演数学模型验证及分析".30.6(2007):907-914.