THE SIGNIFICANCE OF DETAILED STRUCTURE IN THE BOUNDARY-LAYER TO THERMAL-RADIATION AT THE SURFACE IN CLIMATE MODELS

This study used a mid-latitude measurement of diurnal variations in th e boundary layer to simulate thermal radiation for a clear sky. The em issivity growth method was used for the absorption by the five major g reenhouse gases averaged over 10 cm-1 from line by line calculations. The vertical resolution of the model was 0.6 mb at the ground surface, and gradually increases to 100 mb in the middle troposphere. The impo rtance to the calculated surface and outgoing infrared radiation due t o detailed boundary layer structure and diurnal variations is demonstr ated. Thus there is a need to carefully consider the near surface atmo sphere in construction of radiation models for use in climate studies.