摘要
卫星遥感在研究青藏高原北部地区 (藏北高原地区 )非均匀陆表地表特征参数和植被参数时有其独到的作用。作者提出了基于NOAA 1 4AVHRR资料推算藏北高原地区地表特征参数和植被参数的方案 ,并把其用于全球能量水循环之亚洲季风青藏高原试验(GAME/Tibet)试验区。同时利用 3个景的NOAA 1 4AVHRR资料进行了分析研究 ,得到了一些有关藏北地区非均匀地表的区域地表特征参数 (地表反射率、地表温度 )和植被参数(INDV、修正的土壤调整植被指数IMSAV、植被覆盖度和叶面指数ILA)。
Studying on the land surface variables and vegetation variables over inhomogeneous landscape of the northern Tibetan Plateau area, the utilization of satellite remote sensing is indispensable. In this study, methods based on the NOAA-14 AVHRR are proposed and tested for deriving the regional land surface variables and vegetation variables over inhomogeneous landscapes of the GAME/Tibet (GEWEX (Global Energy and Water cycle Experiment) Asian Monsoon Experiment on the Tibetan Plateau, 1996-2000) area. Three scenes of the NOAA-14 AVHRR data used in this study are June 12, 1998, July 16, 1998 and August 21, 1998. The distributions of surface reflectance, surface temperature, I NDV, I MSAV, vegetation coverage and leaf area index I LA over inhomogeneous landscape of the Tibetan Plateau area are derived.
出处
《大气科学》
CSCD
北大核心
2004年第1期23-31,i002-i004,共12页
Chinese Journal of Atmospheric Sciences
基金
国家自然科学基金资助项目 40 2 75 0 0 3
中国科学院知识创新项目KZCX3 SW 3 2 9和KZCX1 1 0 0 6共同资助
关键词
卫星遥感
地表特征参数
植被参数
能量水循环
青藏高原
northern Tibetan Plateau area
satellite remote sensing data
land surface variable
vegetation variable