Aa. Vlasov et al., CALIBRATION OF MICROWAVE MEASUREMENTS FROM HORIZONTAL RADIATION IN A FREE ATMOSPHERE, Soviet journal of remote sensing, 10(5), 1993, pp. 807-811
The paper describes a new method for calibrating radiometers using hor
izontal radiation in a free atmosphere close to the resonance frequenc
y of a line of strong absorption. Results of practical tests of this t
echnique in balloon experiments involving horizontal sensing of the at
mosphere are given.