Global environmental issues. include ozone layer depletion, global warming, acid deposition, tropical deforestation, desertification, pollution problems in developing countries, its impacts and damages affect not only the countries that caused the problems but go beyond their national boundaries and reached a global scale. These problems are inter- related in a complicated manner. The loss of ozone high in the atmosphere as consequences of human activities is a serious global scale environmental problem. Total ozone measurements from Total Ozone Mapping Spectrometer onboard Nimbus 7 (NASA). Meteor 3 (Russian), and Earth Probe (NASA) from November 1978-2001 use to determine the quantitative spatial and a temporal resolution of ozone over the South Asia have been used to investigate total Ozone trends. Long- term trend estimates obtained from the linear multiple regression analysis show no significant Ozone trend in the Southern part of Asia However, the measurement for mid latitude and northern region have shown significant negative trend in ozone. Ozone profile are also measured using GPS based Radiosonde / Ozonesonde balloon sounding system. The flight were carried out at 25’ N and 66º E up to 30-35 Km altitude. In this study the tropospheric ozone formation, stratospheric ozone subsidence and its variation (Seasonal) near and above the ground, temperature and dynamic behavior of the troposphere and stratosphere are also discussed. |
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