A SIMULTANEOUS NUMERICAL SOLUTION FOR GROUND-BASED MICROWAVE REMOTE SENSING OF TEMPERATURE AND WATER VAPOUR PROFILES IN 5mm O2 AND 1.348cm H2O BANDS

In this paper, the correlation of the channels in 5mm absorption band for ground-based microwave remote sensing is discussed and various methods for inverting temperature are compared. Sequentially, choosing optimal channels, samples of Beijing in summer and winter during 1970-1975 are tested numerically with both Monte Carlo method and statistical method for obtaining temperature and water vapour profiles. The rms errors for inverting temperature profiles are less than 1.5 K below 600 mb and 1.6 K below 700 mb in summer and winter respectively. The mean relative errors for nverting water vapour profiles are within 20% in the lower troposphere.