%0 Journal Article
%T VICARIOUS CALIBRATION ON THE SENSOR OF WHOLE SKY INFRARED CLOUD MEASURING SYSTEM<br>全天空红外测云系统辐射传感器的替代定标
%A SUN Xue-Jin
%A LIU Jian
%A MAO Jie-Tai
%A <br>孙学金
%A 刘剑
%A 毛节泰
%J 红外与毫米波学报
%D 2009
%I Science Press
%X In order to calibrate the sensor of whole sky infrared cloud measuring system(WSIRCMS) in operational period, a vicarious calibration method was proposed based on the clear sky infrared radiance field. The response rates and the offsets of the whole array were obtained by linear regression methodon the basis of the clear sky infrared radiance modeled by SBDART, and the DN values were observed. Our results show that the uncertainty of the response rates is 2.03DN unit/ (W·m^-2 · sr^-1), and the offsets have a character of normal distribution which can be considered as spatial random noise. The average error of temperature retvieved is within ±1.5℃ according to the validation of the blackbody test data, which can satisfy the quantitative applications of WSIRCMS.
%K atmospheric remote sensing
%K cloud
%K vicarious calibration
%K whole sky infrared cloud measuring system (WSIRC- MS)
%K downward infrared radiance<br>大气遥感
%K 云
%K 替代定标
%K 全天空红外测云系统
%K 向下红外辐射
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=CD36B5EA221E95B183108A8B8616A832&yid=DE12191FBD62783C&vid=D3E34374A0D77D7F&iid=CA4FD0336C81A37A&sid=318E4CC20AED4940&eid=11B4E5CC8CDD3201&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=8