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[D-3.4 Study of Oceanic Surface Mixed Layer and Current System for Evaluation of Satellite Ocean Color Data]

[Contact Person]

Dr. Masahiro Endoh Laboratory Head,
Oceanographic Department,
Meteorological Research Institute,
Ministry of Transport
Nagamine 1-1, Tsukuba, Ibaraki, 305 Japan
Tel +81-298-51-7111(Ext.433), Fax +81-298-55-1439
E-mail endoh@mri-1.mri-jma.go.jp

[Total Budget for FY1990-1992]

6,150,000 Yen

[Abstract]

　Purpose of the project is to evaluate quantitatively effect of global distribution of phytoplankton to physical environment such as ocean water upwelling and surface mixing with the use of global water circulation numerical models. A numerical model employed is a standard global ocean circulation model driven by the climatological wind stress temperature and salinity with realistic bottom and coastal topography. Embedded in the model is a mixed layer model which has a turbulent closure scheme. The circulation model with annual forcing is integrated with time until it reaches to a quasisteady state. Upwelling in the equatorial and high latitude area and downwelling in the middle latitude are typical results with climatological forcing. Other variables such as horizontal currents convective mixing frequency and depth of surface mixed layer are also calculated.

[Key Words]

Circulation Model, Surface Mixed Layer, Satellite Ocean Color Data, Plankton Distribution