摘要
摘 要 应用NOAA-AVHRR气象卫星数据,通过近似的大气校正模型及双向反射模型,结合地理信息系统,建立了动态的反照率反演模型,并反演计算了我国长江三角洲地区1995年3~12月的地表反照率。通过对以多影响反照率变化出因子的分析显示,遥感反演结果与地表覆盖特征及气候特征基本相符。
Abstract The difference of land surface features and physical characteristics is mainly mechanism that causes anisolropic distribution of albedo. Using statistic models, bidirectional reflectance models and NOAA14-AVHRR data, we retrieve and analyse the monthly mean albedo of 1995. Land-surface cover type obviously change in every year because of (he human activities. This inevitably makes environment modified and often leads to global climate change though the convection of large-scale atmospheric circulation. So, a study of the land suface albedo has important scientific sense.
出处
《大气科学》
CSCD
北大核心
2002年第3期394-400,T001,共8页
Chinese Journal of Atmospheric Sciences
基金
中国科学院重点项目KZ952-S1-303
国家重点基础研究发展规划项目G1998040900第一部分资助