Tropopause and interchange of minor constituents in the upper troposphere and lower stratosphere (UTLS) region

A R Jain, Vivek Panwar, C J Johny, Shipra Jain, S K Peshin, T K Mandal & S K Dhaka CSIR-National Physical Laboratory, Dr K S Krishnan Road, New Delhi 110 012, India Research Institute of Sustainable Humanosphere, Kyoto University, Gokasho Uji, Kyoto, Japan National Centre for Medium Range Weather Forecasting, Ministry of Earth Sciences, Noida, 201 309, UP, India India Meteorological Department, Lodi Road, New Delhi 110 003, India Department of Physics and Electronics, Rajdhani College, University of Delhi, Raja Garden, New Delhi 110 015, India E-mail: atmajain@gmail.com