국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Vertical Distributions of Greenhouse Gases Measured by Aircraft over Sagami-Bay near Tokyo
저자	Takashi TAMARU, Kenji YAZAWA, Takeshi TAGASHIRA, Toshinobu MACHIDA, Gen INOUE
Keyword	Greenhouse gas; Aircraft observation; Tropospheric air quality; Airplane sampling; CO2; CH4; CO; N2O
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltm0000745.pdf?id=NALTM0000745
보고서번호	NAL TM-745
발행년도	2000.01
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	Tropospheric air over Sagami-Bay near Tokyo, was sampled and analyzed to obtain vertical distributions of major greenhouse gases and other chemically important reactive gases. Data collected twice a month for a year from February 1997 to February 1998 were analyzed and are discussed here. These data revealed the following important observational facts: most greenhouse gases are well mixed and relatively uniform above 2 km; CO2, CH4 and CO showed generally high concentration at altitudes below 2 km, presumably from artificial sources on the ground; averaged CO2 concentration corresponds fairly well with the data obtained by airline sampling near tropopause; N2O has the least variation in the atmosphere independent of altitude and season, and one of the important reactive species, CO, has quite a wide variation across the tropospheric layer and qualitatively similar concentration tendencies to CH4.