Ground-Based Sensing of Temperature Profiles from Angular and Multi-Spectral Microwave Emission Measurements

Abstract

The use of angular-scan and multi-spectral techniques for Inferring temperature profiles from ground-based radiometric observations of emission by atmospheric oxygen is discussed. A recently developed multi-frequency radiometer used to evaluate, experimentally, the two techniques is described. Temperature profiles inferred from emission measurements are compared to radiosonde profiles recorded simultaneously with the radiometric data. It is concluded that a combination of angular-scan and multi-spectral input data yields a more accurate profile recovery than other sets of input data.