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4245652 
Journal Article 
Yearly variation and annual cycle of total column ozone over New Delhi (29A degrees N, 77A degrees E), India and Halley Bay (76A degrees S, 27A degrees W), British Antarctic Survey Station and its effect on night airglow intensity of OH(8,3) for the period 1979-2005 
Jana, PK; Saha, DK; Sarkar, D 
2012 
Yes 
Journal of Earth System Science
ISSN: 0253-4126
EISSN: 0973-774X 
121 
6 
1527-1541 
WOS:000313661800011 
A critical analysis made on the long-term monthly, seasonal, yearly variation and annual cycle of total column ozone (TCO) concentration at New Delhi (29A degrees N, 77A degrees E), India and Halley Bay (76A degrees S, 27A degrees W), a British Antarctic Service Station reveals more decline in yearly mean ozone concentration at Halley Bay than at New Delhi from 1979 to 2005. The nature of variations of monthly mean TCO during the months of August and September was the most identical with that of yearly mean ozone values at New Delhi and Halley Bay, respectively, for the same period. Annual cycles of TCO over these stations are completely different for the above period. The effect of O-3 depletion on night airglow emission of OH(8, 3) line at New Delhi and Halley Bay has been studied. Calculations based on chemical kinetics show that the airglow intensity of OH(8, 3) has also been affected due to the depletion of O-3 concentration. The yearly variations and annual cycle of intensities of OH(8, 3) line for the above two stations are depicted and compared. It has been shown that the rate of decrease of intensity of OH(8, 3) line was comparatively more at Halley Bay due to dramatic decrease of Antarctic O-3 concentration. 
Ozone depletion; airglow emission; excitation mechanism; intensity