Declining trend of total ozone column over the northern parts of India
Abstract:Ozone is one of the important atmospheric trace gases that absorbs both incoming solar near‐ultraviolet and outgoing infrared radiation from the Earth's surface. After the discovery of the ‘ozone hole', assessment of the long‐term trend of ozone in different regions of the globe has become a frontline topic of research. The present study deals with the variability in the total ozone column over the Indian subcontinent using satellite and limited ground observations. The linear regression technique was applied to the Nimbus and Earth Probe Total Ozone Mapping Spectrometer (EP‐TOMS) data to study the trends during 1997–2003. The rate of decline of ozone is found to be higher in recent years over the northern parts of India, covering the Indo‐Gangetic basin, compared with other parts of India.
Document Type: Research Article
Affiliations: 1: Center for Earth Observing and Space Research, School of Computational Sciences, George Mason University, Fairfax, VA 22030, USA 2: Department of Civil Engineering, Indian Institute of Technology, Kanpur – 208 016, India
Publication date: 2005-08-20