SOME SENSITIVITY EVALUATIONS OF POTENTIAL 2XCO2 CLIMATE IMPACT ON DEEP CONVECTION OVER WATER BODIES

A boundary-layer numerical model was used to evaluate the impact of GC Ms' predicted 2xCO2 climate on surface thermal fluxes over water bodie s, in situations conducive to deep convection following short-range ai rmass transformation. Multiple one-dimensional simulations, covering t he commonly observed ranges of SST and surface winds, indicate suppres sion of the sensible heat fluxes and almost unchanged latent fluxes fo r the 2xCO2 climate. Consequently, in most situations the potential fo r deep convection was slightly reduced.