SENSORS TO RECORD ATMOSPHERIC AND TERRESTRIAL INFORMATION: PRINCIPLES OF COLLECTION AND ANALYSIS

In this presentation, the basic principles of sun-synchro­ nous polar and geosynchronous satellite-borne sensing devices for the detection and monitoring of atmospheric and terrestrial features will be considered. We shall consider both scanning and staring sensing de­ vices. The main thrust of the presentation will be to discuss the dif­ ferent experimental and operational systems which have been deployed to collect optimal data for selected purposes. The difference between an­ alog and digital data will be discussed.