CM Kishtawal

Atmospheric Sciences Division

Meteorology and Oceanographic Group

Space Application Centre (ISRO), Ahmedabad

Abstract : The paper presents a general overview of satellite systems and characteristics of different satellite orbits viz. polar, and geostationary orbits. Various classifications of satellite sensors e.g. imaging/non-imaging, optical/microwave, and passive/active were discussed with appropriate examples. The basic concept of satellite remote sensing based on the laws of radiation, and terrestrial absorption spectrum are presented in the first part of the article. Observations from two operational satellite sensors viz. NOAA-AVHRR, and INSAT-VHRR are discussed in more detail and with ample examples.

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