%0 Journal Article
%T In-Flight Radiometric Calibration for Thermal Channels of FY-1C Meteorological Satellite Sensors Using Qinghai Lake, Water Surface Radiometric Calibration Site<br>利用青海湖水面辐射校正场对FY—1C气象卫星热红外传感器进行绝对辐射定标
%A HU Xiu qing
%A RONG Zhi guo
%A QIU Kang mu
%A ZHANG Yu xiang
%A ZHANG Guang shun
%A HUANG Yi bin
%A <br>胡秀清
%A 戎志国
%J 遥感学报
%D 2002
%I 
%X This Paper describe that in flight radiometric calibration for thermal channels of FY 1C meteorological satellite sensors using Qinghai lake, water surface radiometric calibration site. The radiance of water surface measured by CE312, and then performed atmosphere correction including gas absorption and path radiance which computed by radiative transfer code MODTRAN37,predict the radiance in the satellite sensor entrance pupil. At the same time the spectral response of Satellite sensor and that of ground based sensor are coupled. At last the apparent radiance of sensor spectral channels are compared to the digital count of satellite's output to give the calibration coefficient. The result show the difference between in flight and on board calibration is about 5%, equivalent to a brightness temperature of 3 K.
%K vicarious calibration
%K spectral response match
%K radiative transfer calculation
%K apparent radiance<br>青海湖
%K 水面辐射校正场
%K 气象卫星
%K 热红外传感器
%K 绝对辐射定标
%K 替代定标
%K 光谱响应匹配
%K 辐射传输计算
%K 入瞳处辐亮度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=207DF4D009F15F05&yid=C3ACC247184A22C1&vid=B31275AF3241DB2D&iid=94C357A881DFC066&sid=A5B34D9E8FDA439A&eid=CF6CB42CFF3D4C4E&journal_id=1007-4619&journal_name=遥感学报&referenced_num=2&reference_num=7