Interactions between the Upper Tropospheric and Stratospheric Region and Summer Monsoon as Revealed by Satellite Observations

Abstract

Using the upper tropospheric and stratospheric temperatures and total ozone amount data obtained from the TIROS-N satellite over the Indian region during the period May to July 1979 subdivided into six different phases of the monsoon, possible interactions between the 400-1mb atmospheric region and the summer monsoon have been examined in this paper. This investigation shows a noticeable decrease of the stratospheric temperatures and total ozone amount at the onset phase of the southwest monsoon with an increasing trend during its active phase. Variations in the stratospheric temperatures and total ozone amount are found to be consistent with each other parcularly in the 100-70mb layer.