云的地基、数字摄像遥感原理和方法

An experimental set of bistation digital photograph system with a short baseline ,that acquires and processes dual synchronous digital cloudy images at real time, has been developed for observing the wide-band or spectral luminance distribution in different directions of the cloudy sky . On the basis of researching deeply the uncertainty measuring the sky luminance distribution with digital photography, an approach to the optical characteristics calibration of the CCD camera system and a self-controlling technique digital camera exposure and as well a method eliminating the effects of the system noises and stray light superposed on the effective signal are presented to ensure the correct mean level of given digital image pixel with high confidence. There are 5 science papers published and two computer softwares copyright approved..The experiments observing and valuating cloud height and types have been conducted, acquired data are yet in analyzing, including the alculation of systematic errors caused by istation direction angles and comparison to Lidar cloud height .

云的地面观测依然停留在依靠人工目测的落后状态，发展云的自动化地基遥感理论和方法是气象现代化必须解决的难题之一。本课题是在我们研究数字摄像能见度仪成果基础上建立可见/红外、高灵敏度数字摄像遥感全天空云像的试验系统，进行云状、云量和云高的遥感原砗头椒ǖ难芯俊＝缘孛嫫窆鄄饧际醺镄伦龀龉毕祝兄匾目蒲б庖搴陀τ们熬啊