Absorption of solar radiation by the atmosphere as determined using satellite, aircraft, and surface data during the Atmospheric Radiation Measurement Enhanced Shortwave Experiment (ARESE)

摘要: Data sets acquired during the Atmospheric Radiation Measurement Enhanced Shortwave Experiment (ARESE) using simultaneous measurements from five independent platforms (GOES 8 geostationary satellite, ER-2, Egrett and Twin Otter aircraft, surface) are analyzed compared. A consistent data set can be built for selected days ARESE on basis of observations these platforms. The GOES albedos agree with ER 2, Egrett, measured instantaneous within 0.013±0.016, 0.018±0.032, 0.006±0.011, respectively. It is found that heavy overcast conditions aircraft yield an absorptance 0.32±0.03 layer between (0.5–13 km), while albedo versus surface transmittance analysis gives 0.33±0.04 total atmosphere (surface to top). solar radiation estimated by model calculations varies 0.16 0.24, depending used cloud aerosol implementation. These results in general agreement recent findings cloudy skies, but here a brings together (satellite, surface, aircraft) used. Previous reexamined light new findings, it concluded 0.224–0.68 μm spectral region ranges 0.04±0.06 0.08±0.06, particular case analyzed. No evidence excess clear-sky absorption beyond experimental errors found.