RELATION BETWEEN SEA SURFACE TEMPERATURE AND ASIAN MONSOON CHARACTERISTICS

K. G. Rubinshtein, R. Yu. Ignatov, and E. N. Egorova*

Analysis is presented of two ten-year (1979-1988) numerical experiments with the atmospheric general circulation model of the Hydrometeorological Center of Russia. In the first experiment the sea surface temperature (SST) was specified according to mean monthly observation data. For the second experiment, the SST was obtained through the month-to-month ten-year averaging. It is shown that the model reproduces the main features of monsoon circulation satisfactorily; the SST variability, when taken into account, affects the mean July precipitation intensity in the monsoon area, but has almost no impact on the structure of the mean precipitation field. Consideration of SST variability affects essentially the time variations of precipitation intensity anomalies over Hindustan, but particularly does not vary the circulation structure and intensity at the 200- and 850-hPa isobaric surfaces.