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[B-5.1 Study on the Development and Improvement of a Climate Model]

[Contact Person]

Itsushi Uno
Head, Atmospheric Environment Division
National Institute for Environmental Studies
Environmental Agency
1 Onogawa, Tsukuba, Ibaraki 305 Japan
Phone +81-298-51-6111(Ext.439), Fax +81-298-51-4732
Email iuno@nies.go.jp

[Total Budget for FY1991-1993]

37,007,000 Yen (FY1993 12,252,000 Yen)

[Abstract]

　An atmospheric and oceanic general circulation model has been developed. This model is intended for a community-use research on climate change of the time-scale ranging from several years to several hundreds of years. Physical parameterizations of atmospheric radiation process and hydrological processes were developed. We also developed a high-accuracy and high-efficiency global ocean GCM. Then preliminary experiments were performed with realistic boundary conditions. It was found that the GCM is compatible with the most advanced models in the world by comparing with observed climate data. In addition, a land-surface model and sea-ice model were developed and their characteristics were investigated.

[Key Words]

Climate Model, Atmospheric General Circulation, Ocean General Circulation, Land-Surface Process, Parameterization