Two numerical experiments were performed for sensitivity study of surf
ace albedo, one was a control run in which the albedo values for snow-
free surfaces were prescribed as constant; the other was a sensitivity
run in which an albedo with seasonal variation was incorporated into
the model show that the simulation of precipitation is sensitive to th
e surface albedo variations, especially those over Eastern Asia and th
e Sahara. Changes in surface albedo also have an impact on the monthly
mean sea level pressure, especially on the July-mean Western Pacific
subtropical high. Surface air temperature decreased over most of the E
astern Asia but increases over most of the Antarctica in July.