検索画面に戻る Go Research

	(171Kb)

[A-1.1 Research on Variations of Ozone and Related Minor Species with an Infrared Laser Heterodyne Spectrometer]

[Contact Person]

Prof. Hiroshi Fukunishi
Department of Astrophysics and Geophysics
Faculty of Science, Tohoku University, Sendai 980, Japan
Tel:+81-22-222-1800(Ext.3582), Fax:+81-22-262-3357
E-mail:fukunishi@stpp.geophys.tohoku.ac.jp

[Total Budget for FY1990-1992]

11,715,000 Yen

[Abstract]

　Decline of ozone amounts in the mid-latitude regions in the northern hemisphere has been reported in recent years. The purpose of this study is to clear causes of ozone variations in the mid-latitude regions using ozone vertical profile data observed by the infrared laser heterodyne spectrometer and potential vorticity data calculated from the global analysis data provided by the Japan Meteorological Agency. Observations of ozone vertical profiles were made at the National Institute for Environmental Studies in Tsukuba in the 1991/1992 and 1992/1993 winter seasons. From comparison between the ozone data, and the potential vorticity data, it is found that natural ozone variations due to air transport dominate in winter seasons around Japan, however, there was a case that ozone poor air originating from the high latitude regions where ozone may be destroyed through heterogeneous processes was transported to Japan.

[Key Words]

Ozone, Minor Species, Infrared Spectroscopy, Laser Heterodyne, Remote Sensing