Behavior of Typhoon observed by NIMBUS -7 TOMS data
Manabu Matsuda,Fumihiko Hiruma,Kiyoshi Tsuchiya
Remote Sensing and Image Research Centre Chiba Univ.
1-33 Yayoi - Cho Chiba 260 Japan
Makoto Suzuki, Nobuo Takeuchi
The National Institute For Environmental Studies
16-2 Onogawa,Tsukuba Ibaragi 305 Japan
Abstract
The pattern of total ozone (total column density of ozone) in NIMBUS-7 TOMS (total ozone mapping spectrometer) data was found to reflect the typhoon behavior in the West Pacific. Some patterns of total ozone are found to be influenced by typhoon and are similar to the for of typhoon. In synoptic scale the area that the total ozone concentration changes in middle or mid high latitude corresponds to the part of the behind or front of the 300 mb trough line movement .it is that the pattern of total ozone is closely related to the atmospheric motion.
Introduction
Since the Antarctic ozone (O
3) hole was observed there have been many reports that ozone layer in stratosphere would be broken by CFM (chlorofluoro methane) the behavior on ozone is still under in intensive investigation .The behavior of ozone concentration is closely related to meteorological change in stratosphere it is important to know about the movement of ozone in the atmosphere and the mechanism of exchange between stratosphere and troposphere. The occurrence of the high concentration of ozone at the surface is mostly caused by ozone failing stratosphere troposphere (WMO 1985) Harthon et al (1976) proposed a mechanism of ozone falling the explained this mechanism as follows: ozone rich stratospheric air flows down in to developing frontal layer then ozone moves down within the frontal layer and around to a position near the trailing edge and as the trailing edge dissipates ozone is transported to the surface .
It is considered that violent atmosphere disturbance such as a typhoon may effect ozone distribution however as far the report on this problem is very few .An attempt is made to clarify the relationship between ozone distribution and typhoon together with contour pattern at 300 mb level.
