国土资源遥感Issue(1)：128-132,5.
MODIS大气校正精度评价及其对表层雪密度提取影响
Accuracy Evaluation of MODIS Atmospheric Correction and Its Effects on Surface -Snow Density Extraction
摘要
Abstract
With Gurbantunggut desert as the study area and by using moderate resolution imaging spectrometer (MODIS) data, which is a kind of optical remote sensing data, in combination with snow reflectance spectra simultaneously measured by ASD Field Spec, the authors evaluated the correction capability of FLAASH model.Some results have been attained: ① Snow reflectance from 1st to 7th band of MODIS is similar to the simultaneously measured snow refiectivity, and the correlation coefficient of all bands is 0. 82 on the whole,indicating that FLAASH can greatly enhance the capability for identifing surface features of MODIS . ② On the basis of linear relationship between snow reflectance after correction at MODIS channel 6 and NDSI and measured snow density, a snow density remote computation model can be built by way of regression and fitting.关键词
大气校正/雪密度/反演/同步地物反射光谱/MODISKey words
Atmospheric correction/ Snow density/ Retrieval/ Synchronous ground reflectance spectra/ MODIS分类
计算机与自动化引用本文复制引用
刘艳,汪宏,张璞,李杨..MODIS大气校正精度评价及其对表层雪密度提取影响[J].国土资源遥感,2011,(1):128-132,5.基金项目
中央级公益性科研院所基本科研业务项目(编号:IDM200808、IDM200704)和新疆气象局基金项目(编号:C2006003)共同资助. （编号:IDM200808、IDM200704）
