Estimation of atmospheric liquid water content from measurements of radiation transmission in the minimum of 2724-cm-1 HDO absorption band along slant and horizontal paths

摘要

Abstract: Relative transmission of radiation P in the minimum of the 2724-cm$-1$/ HDO band has been analyzed in two cases: a) for solar radiation and different air masses m (slant paths); b) globar as the artificial source of radiation in the ground air layer (horizontal paths with a length of 1.4 km). A technique for estimation of precipitated water w$-z$/ (cm) in the vertical atmospheric column with accuracy of about 10 percent has been suggested. Calibration curve P (s$-z$/ x m) calculated from the dependence of P on w$-o$/ - precipitated water of the ground air layer - is used.!8