中国科学院研究生院学报2011，Vol.28Issue(1)：43-50,8.
黑龙江流域MODIS和AMSR-E雪盖产品精度分析
Accuracy evaluation of MODIS and AMSR-E snow cover products in the Heilongjiang drainage basin
摘要
Abstract
Using meteorological site data in Heilongjiang drainage basin as the ‘ truth valves' , we evaluated the snow identification accuracies of MODIS snow products and AMSR-E data from 2002 ～ 2007 and analyzed the influence of cloud and altitude on the snow identification accuracy. The results showed that MOD10A2,MOD10C2,and AMSR-E snow identification accuracies are 75.4％ , 88.7％ , and 88.9％ , respectively. The existence of cloud is the main factor affecting snow identification accuracy. MOD1OC2 snow identification results are close to the true values of meteorological stations and AMSR-E tends to overestimate the snow cover area. Besides,the results indicate that snow cover areas derived from the soft classification of MOD10A2 and MOD10C2 are smaller less than that derived from the hard classification,and the results obtained from the soft classification are closer to the true values.关键词
黑龙江流域/MODIS/AMSR-EKey words
Heilongjiang drainage basin/ MODIS/ AMSR-E分类
信息技术与安全科学引用本文复制引用
雷小春,宋开山,王宗明,仲桂新,赵凯,刘殿伟,张柏..黑龙江流域MODIS和AMSR-E雪盖产品精度分析[J].中国科学院研究生院学报,2011,28(1):43-50,8.基金项目
中国科学院知识创新工程重要方向项目(KZCX2-YW-340)资助 （KZCX2-YW-340）
