East Asia and Western Pacific METEOROLOGY AND CLIMATE

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(described in section 2) carried out to see if it can simulate spatial
and temporal temperature variations for the region and with the aim of
eventually using it to supplement the larger scale forecast from VFM
models or ECMWF.
Fig. 1
1 km GRID TERRAIN (150 x 150 grids )
AREA INCLUDES PEARL ESTUARY. HONG KONG & DAYA BAY
2. The Numerical Model
The local area model used in this experiment is a three
dimensional prognostic primitive equation model with Boussinesq approximation.
A more detailed description of the model may be found in
Kikuchi et al (1981) and Kimura (1983).
The heat budget calculation which changes the ground
temperatures follows Bhumralker's scheme (1975). However to simulate
the sky conditions, an extra factor which adjusts the amount of incoming
short wave radiation is employed. In the constant flux layer, the
vertical eddy diffusivity is obtained from the flux profile relationship
of Dyer and Hicks (1970) and of Kondo et al (1978) for the stable
and unstable stratification respectively. For the other layers, turbulence
is parametrized by Mellor and Yamada's level two turbulence