Latitudinal variation of HNO₃, HCl and HF vertical column density above 11.5 km

Abstract

Simultaneous spectral observations in the atmosphere have been obtained for HNO 3 , HCl and HF in April‐May 1980, by the solar occultation technique, from an aircraft, between 64° North and 62° South. For these three species, the vertical column density above 11.5 km increases from low latitude in both hemispheres.