摘要
比较了3种由Hyper-TSRB数据估算海面遥感反射比(Rrs)的方法,这3种方法分别为:prosoft、优化方法和经验方法。用于比较的现场测量数据为SeaBASS数据中193个站位的水中向上辐亮度(Lu(z))及向下辐照度(Ed(z))的剖面数。比较结果显示,3种方法对于较清的水体都有很高的精度,对于混浊的水体,优化方法和经验方法都有较高的精度,其中经验方法的性能稍优于优化方法,而prosoft方法精度较差,可达50%。
Three methods for determining the water leaving remote sensing reflectance （Rrs） from Hyper-TSRB measurement were compared, which are prosoft, optimization and empirical method, respectively. The data set used for comparison consists of 193 profiles of the downwelling irradiance Ed（z） and the upwelling radiance Lu（z） from SeaBASS database. The results show that three methods have high performance in the clear waters, both optimization and empirical methods have much higher accuracy than prosoft method in the turbid waters, and the accuracy of the empirical method is slight higher than that of optimization method.
出处
《海洋技术》
北大核心
2012年第2期54-57,62,共5页
Ocean Technology
基金
国家自然科学基金资助项目(40876005)
