ARM Studies Reduce Model Simulation Uncertainties


The Office of Science Atmospheric Radiation Measurement (ARM) Program has completed a major effort aimed at improving the parameterizations of radiative transfer in the atmosphere which are used in global climate models to simulate how climate will respond in the future to natural and human-induced forcing. The development and validation of a new radiative transfer model reduced errors in longwave radiation flux calculations, resulting in a reduction in the uncertainties in model simulations of heating and cooling of the Earth’s atmosphere.