摘要
位于我国西南部的青藏高原是世界上海拔最高、地形最复杂的高原 ,其热力和动力作用对我国和全球气候系统的影响非常显著 ,而高原地表反照率是决定地表能量收支平衡十分重要的参数。本文采用卫星遥感和地理信息系统技术 ,应用目前国际上最先进的双向反射模型 ,建立了动态的地表反照率反演方法 ,并对 1
The differences of land surface feature and physical characteristic are mainly reason that cause anisotropic distribution of albedo, it also is the reason that form areal climate. In this paper, using the bidirectional reflectance models and NOAA14-AVHRR data, we retrieved the monthly mean albedo in 1997, and analyzed the result. The type of land surface cover obviously change in every year because of the creativity of human. This inevitably makes environment to modify and lastly lead to global climate change though the convection of large scale atmospheric circulation. So, the land suface albedo is studied that has important scientific sense.
出处
《高原气象》
CSCD
北大核心
2002年第3期233-237,共5页
Plateau Meteorology
基金
国家重点基础发展规划研究项目 (G19980 4 0 90 0 part1)
国家自然科学基金项目 ( 40 10 50 11)
优秀国家重点实验室研究项目( 4982 30 0 2 )的共同资助
