A web-based land surface remote sensing products validation system (LAPVAS): application to albedo product  

作　　者：Xingwen Lin Jianguang Wen Yong Tang Mingguo Ma Dongqin You Baocheng Dou Xiaodan Wu Xiaobo Zhu Qing Xiao Qinghuo Liu 

机构地区：[1]State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences,Beijing,People’s Republic of China [2]University of Chinese Academy of Sciences,Beijing,People’s Republic of China [3]Joint Center for Global Change Studies,Beijing,People’s Republic of China [4]School of Geographical Sciences,Southwest University,Chongqing,People’s Republic of China [5]College of Global Change and Earth System Science,Beijing Normal University,Beijing,People’s Republic of China

出　　处：《International Journal of Digital Earth》2018年第3期308-328,共21页国际数字地球学报（英文）

基　　金：This work was jointly supported by National Natural Science Foundation of China[41671363];National Basic Research Program of China[2013CB733401];National High Technology Research and Development Program of China:[2013AA12A301].

摘　　要：Quantitative remote sensing product(QRSP)validation is a complex process to assess the accuracy and uncertainty independently using reference data with multiple land cover types and long-time series.A web-based system named as LAnd surface remote sensing Product VAlidation system(LAPVAS)is described in this paper,which is used to implement the QRSPs validation process automatically.The LAPAVS has two subsystems,the Validation Databases Subsystem and the Accuracy Evaluation Subsystem.Three functions have been implemented by the two subsystems for a comprehensive QRSP validation:(1)a standardized processing of reference data and storage of these data in validation databases;(2)a consistent and comprehensive validation procedure to assess the QRSPs’accuracy and uncertainty;and(3)a visual process customization tool with which the users can register new validation data,host new reference data,and readjust the validation workflows for the QRSP accuracy assessment.In LAPVAS,more than 100 GB of reference data warehoused in validation databases for 13 types of QRSPs’validation.One of the key QRSPs,land surface albedo,is selected as an example to illustrate the application of LAPVAS.It is demonstrated that the LAPVAS has a good performance in the land surface remote sensing product validation.

关 键 词：Remote sensing VALIDATION system LAPVAS uncertainty information ALBEDO 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]