Abstract

This paper describes the Improved Stratospheric and Mesospheric Sounder experiment on the Upper Atmosphere Research Satellite. ISAMS uses a technique called pressure modulator radiometry, which permits the measurement of selected atmospheric parameters with high precision and selectivity. Marriage of this technique with the objectives of the UARS programme is aimed at producing a radical improvement in current knowledge of the middle atmosphere. In particular, it is hoped to make significant progress in understanding the coupled behaviour of radiation, dynamics and photochemistry in the stratosphere and mesosphere.

© 1990 Optical Society of America