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[B-4.4 Aircraft Observation of Areal Carbon Absorption]

[Contact Person]

Takashi Tamaru
Director,Aero-engine Division, National Aerospace Laboratory
Ministry of Education, Culture, Sports, Science and Technology
7-44-1, Higashi-machi, Jindaiji, Chofu, Tokyo 182-8522, Japan
Phone: +81-422-40-3450 Fax: +81-422-40-3445
E-mail: tamar@nal.go.jp

[Total Budget for FY1999-FY2000]

16,979,000 Yen (FY2000;  8,490,000 Yen)

[Abstract]

　The aim of this research is to establish aircraft measurement technique of trace gases in the atmosphere. The trace gases are carbon dioxide and other gases that influence the activity of forests. The present research consists of obtaining measurement techniques of gas concentration and the local three-dimensional flow at once on an airplane in order to know the flux, or mass transportation, of those chemical species. Comparing with the data obtained by the fixed radar facility, the verification was made to the data by ultrasonic anemometer installed on an aircraft. It demonstrated that the flux measurement by the airplane with an ultrasonic anemometer was made and the absorption of carbon dioxide was observed over the forest in Hokkaido.

[Key Words]

Carbon dioxide, mass transport, aircraft observation, wind measurement,ultrasonic anemometer, trace gas flux