| |
|---|---|
 (240Kb)
|
| Shoichi Taguchi | |
| Scientist | |
| Inter-spheric Environmental Section | |
| Environmental Assessment Department | |
| National Institute for Resources and Environment | |
| National Institute of Advanced Industrial Science and Technology | |
| Ministry of Economy and Industrial Technology | |
| Onogawa 16-3, Tsukuba, Ibaraki, 305-8569 Japan | |
| Tel: +81-298-61-8384 Fax: +81-298-61-8358 | |
| E-mail: s.taguchi@aist.go.jp |
52,033,000 Yen
(FY 2000; 9,043,000 Yen)
Flux of carbon dioxide from the atmosphere to the ocean over north Pacific Ocean, 15瀘-60瀘 was estimated to be 0.35 PgC/yr based on the gradient of partial pressure of carbon dioxide and gas transfer velocity derived from surface winds. The same flux was estimated to be 0.3 PgC/yr based on the concentrations of carbon dioxide in the atmosphere using atmospheric inverse method. These estimates are smaller than the previous estimate of 0.45 PgC/yr. Filling gaps among these estimate requires accurate observations of the gradient of partial pressure at middle of the north Pacific, Sea of Japan and Sea of Okhotsk in winter to spring.
Carbon dioxide, material transport between atmosphere and ocean, inverse method, IPCC