%0 Journal Article
%T Cross-calibration of FY-2E/VISSR infrared window and water vapor channels with TERRA/MODIS<br>利用MODIS对FY-2E/VISSR红外窗区和水汽通道的交叉绝对辐射定标
%A Xu N
%A HU Xiu-Qing
%A CHEN Lin
%A ZHANG Yu-Xiang
%A <br>徐娜
%A 胡秀清
%A 陈林
%A 张玉香
%J 红外与毫米波学报
%D 2012
%I Science Press
%X This paper addresses the cross-calibration method of infrared window and water vapor channels of VISSR (Visible and Infrared Spin Scan Radiometer) with reference data provided by the onboard geostationary satellite FY-2E with MODIS (MoDerate resolution Imaging Spectroradiometer) and the onboard polar-orbit satellite TERRA. The cross-calibration is implemented using the satellite remote date in May, July and December of 2010. The results show that the bright temperature calculated using cross-calibration coefficients is nearly equal to the observed value of MODIS for all collocation samples, and about 90 percent of temperature bias is less than 1K. It can also be seen that the calibration slope decreases obviously from May to the beginning of July, and ascends slightly in the last ten-day of July，then keeps steady in December. The variation of calibration coefficients reveals great consistent with that of remote temperatures. All in all, the cross-calibration method described here can increase frequency and accuracy, and provide a methodological foundation for on-orbit calibration of FY-2E.
%K Geostationary meteorological satellite
%K cross-calibration
%K infrared channel
%K temporal and spatial collocation
%K spectral matching<br>静止气象卫星
%K 交叉绝对定标
%K 红外通道
%K 时空匹配
%K 光谱匹配
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=7A325AF54FF453A4F40263AF163CE93D&yid=99E9153A83D4CB11&vid=4AD960B5AD2D111A&iid=E158A972A605785F&sid=160561E9A96393DE&eid=90612DF06FCE4D55&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=14