The depletion of the ozone shield over the Polar regions has raised many question such as climate and risks for humans and ecosystems resulting from enhanced UV radiations. The human exposure to UV radiation may result in many skin and eye disorders. A quantitative relation between the amount of UV radiation received and its adverse effects needs to be investigated. It is well known that even if the emission of ozone-depleting substances is halted immediately. The continuing depletion of the ozone layer will result in several thousands of extra cases of skin carcinoma. one of the important parameters to determine the extent of the climate change and the increase in UV radiation in the Asia-Pacific region is to monitor solar radiation (UV radiation) on a regional basis Minimum UV irradiation has been observed at Karachi (24.87șN, 67.03șE) during summer monsoon (July-Aug-Sep) with a cloud cover ranging from 90 to 100% UV-B perturbations have also shown antyicorrelation with total ozone. A satellite-based UV monitoring network could be useful to observe the distribution of the solar UV insulation over a large area and its seasonal dependence. the salient features of such programme could be the determination of seasonal trends and the variations in the distribution of solar UV radiation. Such a network would help arriving at representative models of UV radiation incidence and would enable the study of the temperature and dynamic behavior of the troposphere and stratosphere providing ground truth information for the calibration and verification of remote measurements using satellite, radar, lidars etc. ©1998 Elsevier Science Ltd. All rights reserved. |
Abstracts 
