Structure and growth of atmospheric boundary layer as observed by a tethered balloon payload

Abstract

Temperature, humidity, pressure, horizontal wind speed and its direction were measured by a tethered balloon (kytoon)-bome payload at the Central Agricultural Meteorological Observatory (CAMO), Pune, during 22 Feb. 1989-2 Mar. 1989 to study the evolution of atmospheric boundary layer and its other properties up to 1000 m. On an average 8-9 kytoon flights per day were arranged. The data collected on the above flights are analysed to study (i) the rise of inversion layer, (ii) transformation of stable boundary layer into thoroughly mixed layer, and (iii) temporal variation of mixing ratio.