DERIVING MONTHLY MEANS SURFACE AIBEDO OF CHINA

The interactions of at mosphere, ocean, rock, glacier and creature lead to the global clim ate change. Mean while, the activity of human being has changed the natural structure of land surface and the inherent balance of at mosphere. All these not only have affect on the global environment change, but also bring forw ard more strict requirement to GCM. Land surface is composed by the earths surface feature with different configurations and physical character istics. Every kind of earths surface feather has individual fashion of energy distribution and mass exchange. Because of violent change with time, the earth's surface feathers seriously affect equilibrium of energy, momentum and mass between the earth's surface and atmospheric layers. Practically, the distribution of land-surface category is irregular and takes on horizontal anisotropy. When difference is very large between land-surface and surroundings, local especial micro-climate is created. Though turbulent convection of at mospheric layers, it affects large-scale environment change, for vegetation, this point is even more obvious.