Ozone decline and its effect on night airglow intensity of Na 5893 Å at Dumdum (22.5°N, 88.5°E) and Halley Bay (76°S, 27°W) |
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| Authors: | P K Jana S C Nandi |
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| Institution: | (1) Department of Chemistry, Institute of Education (P.G) for Women, Chandernagore, Hooghly, 712 138 West Bengal, India;(2) Serampore High School, Serampore, Hooghly, 712 201 West Bengal, India |
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| Abstract: | The paper presents the effect of O3 depletion on night airglow emission of Na 5893 Å line at Dumdum (22.5°N, 88.5°E), India and Halley Bay (76°S, 27°W), a British Antarctic service station. Calculations based on chemical kinetics show that the airglow intensity of Na 5893 Å line will also be affected due to the depletion of O3 concentration. The nature of yearly variation and seasonal variation of the intensity of Na 5893 Å line for the above two stations are shown and compared. It is shown that the rate of decrease of intensity of Na 5893 Å line is comparatively more at Halley Bay due to the dramatic decrease of Antarctic O3 concentration. A possible explanation for this dramatic decrease of Antarctic O3 concentration is also mentioned. |
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| Keywords: | Ozone depletion airglow intensity |
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