Oceanographic and Marine Meteorological Observations by Research Vessels

Oceanographic and marine meteorological observations are conducted in the western North Pacific and in the seas adjacent to Japan by two JMA research vessels named Ryofu Maru and Keifu Maru. Background marine pollution and greenhouse gases are also observed. For details of the data provided on this website, please refer to Description and Format of Data.

Observation Data

Point to one of the seasons below to display all observation tracklines for the season. Clicking on the season shows a list of observation cruises for that period in the table on the right.

Winter Spring Summer Fall

Revision History

Pointing to a ship name displays its trackline in the figure on the left. Click on the ship name to view the station chart and observation data of the cruise.

Fall of 2006

Ship Name	Cruise No.	Observation Area	Start Date	End Date
Kofu Maru	0610	East of Honshu	19 Oct. 2006	28 Nov. 2006
Keifu Maru	0610	The western North Pacific	13 Oct. 2006	31 Oct. 2006
Keifu Maru	0612	The western North Pacific	05 Dec. 2006	14 Dec. 2006
Chofu Maru	0609	The western North Pacific and the East China Sea	28 Sep. 2006	31 Oct. 2006
Ryofu Maru	0610	The western North Pacific	11 Oct. 2006	06 Nov. 2006
Seifu Maru	0610	The Sea of Japan and east of Honshu	04 Oct. 2006	17 Nov. 2006

JMA Data Report of Oceanographic Observations Special Issue is preserved by the National Diet Library's Web Archiving Project (WARP). (Go to the WARP page.)