Climate indices from an experiment with four idealized stages of Qinghai-Tibet Plateau elevation (HT-1 to HT-4) and one glacial maximum stage (G) made with the NCAR climate model CCM3. These changes in continent-scale monsoon circulation are caused primarily by large increases in sensible heating and latent heating (precipitation) that are focused over or along the slopes of the high plateau. In central Asia, precipitation decreases.