Ozone decline and its effect on night airglow intensity of Na 5893°A at Dumdum (22.5°N, 88.5° E) and Halley Bay (76°S, 27°W)

Journal of Earth system science

S C Nandi2²  P K Jana1¹ 

[1] Department of Chemistry, Institute of Education (P.G) for Women, Chandernagore, Hooghly 712 138, West Bengal, India.$$;Serampore High School, Serampore, Hooghly 712 201, West Bengal, India.$$

关键词: Ozone depletion;    airglow intensity.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

The paper presents the effect of O3 depletion on night airglow emission of Na 5893 A 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 A 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 A line for the above two stations are shown and compared. It is shown that the rate of decrease of intensity of Na 5893 A 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.

【 授权许可】

Unknown