%0 Journal Article
%T NATURAL TERRAIN INFRARED RADIATION STATISTICS IN A WIND FIELD<br>风场下自然地表红外辐射统计特性
%A RAO RUIZHON SONG ZHENGFANG
%A <br>饶瑞中
%A 宋正方
%J 红外与毫米波学报
%D 1991
%I Science Press
%X Considering the heat convection in a wind field, the infrared radiation statistics of natural terrain is analyzed by the heat balance equation. The first-order approximation is used for the radiation term in the equation. The results show that the heat convection will change the statistical distribution of the radiance in the thermal image of natural terrain. With the increase of wind speed, the most probable and average temperature will trend to the steady air temperature, and the contrast of the thermal image will decrease. The saturation phenomena of the convection effect are pointed out.
%K Thermal image
%K infrared radiation
%K terrain
%K wind field<br>风场
%K 地表
%K 红外辐射
%K 热图像
%K 统计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=77ADD2E99740D84937233C9F7DB56C3E&yid=116CB34717B0B183&vid=F3090AE9B60B7ED1&iid=0B39A22176CE99FB&sid=A8DE7703CC9E390F&eid=A020552C37306588&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=5&reference_num=0