A STUDY OF AEROSOL PROPERTIES AND SOLAR-RADIATION DURING A STRAW-BURNING EPISODE USING AIRCRAFT AND SATELLITE MEASUREMENTS

Aircraft measurements of radiative fluxes over the North Sea during a heavy straw-burning pollution episode are presented and compared with results from a radiative transfer model. The model uses aerosol properties derived from aircraft and satellite measurements, and acceptable agreement with the measured fluexes is obtained. High levels of aerosol concentration are described, with correspondingly large radiative effects. Boundary layer heating rates of 3 K day-1 are measured, and rates of 5-10 K day-1 in regions of higher aerosol loading are inferred.