卫星遥感敦煌地区地表特征参数研究  

Study on Land Surface Parameters over Inhomogeneous Landscape of Dunhuang Area by Using Satellite Data

作　　者：马耀明[1] 刘东升[2] 王介民[1] 黄荣辉[3] 苏中波[4] 高峰[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000 [2]四川省人工降雨防雹办公室,四川成都610071 [3]中国科学院大气物理研究所,北京100029 [4]瓦格宁根大学及研究中心

出　　处：《高原气象》2003年第6期531-536,共6页Plateau Meteorology

基　　金：中国科学院知识创新项目(KZCX3 SW 329);国家重点基础研究发展规划项目(1998040900)资助

摘　　要：卫星遥感在研究沙漠化地区非均匀地表特征参数时有其独到的作用。本文提出了一个基于Landsat-7TM资料推算沙漠化地区地表特征参数的方案,并把其用于中国西北地区"我国重大气候和天气灾害形成及预测理论的研究"的敦煌试验区,并且利用3个景Landsat-7TM资料进行了分析研究,得到了一些有关沙漠化地区非均匀地表区域地表特征参数(地表反射率、地表温度、修正的土壤调整植被指数MSAVI和植被覆盖度)的新概念。For studying on the land surface parameters over inhomogeneous landscapeof desertification area, the utilization of satellite remote sensing is indispensable. In this study, methods based on Landsat-7TMare proposed and tested for deriving the regional land surface parameters over inhomogeneous landscapesof the Dunhuang experimental area. Dunhuang area is selected as a basic experimental area for the Chinese National Key Programme for Developing Basic Sciences: Research on the Formation Mechanism and Prediction Theory of Severe Climate Disaster in China. Three scenes of Landsat TM data used in this study are June 3, August 22, 2000 and January 29, 2001 in Dunhuang area. Some new concepts about the distributions of surface reflectance,surface temperature, MSAVI and vegetation coverage over inhomogeneous landscape of desertification area are point out in this paper.

关 键 词：沙漠化地区 敦煌试验区 Landsat-7 TM 地表特征参数 遥感 

分 类 号：P414.4[天文地球—大气科学及气象学]