Verification of aerosol models for satellite ocean color remote sensing

摘要: Direct atmospheric transmittance and sky radiance were measured spectrally at the coastal site of Scripps Institution Oceanography pier in La Jolla, California, during winters 1993 1994. was also aboard R/V Wecoma on Catalina Island 1994 California Cooperative Oceanic Fisheries Investigation winter cruise. The data analyzed to (1) verify whether aerosol models selected by Gordon Wang [1994] for sea-viewing wide field view sensor are adequate ocean color remote sensing from space (2) identify what type situ optics measurements should be performed correction algorithms. Aerosol optical thickness 870 nm generally low with most values below 0.1 after stratospheric aerosols. Values even lower offshore (R/V Wecoma, Island), no systematic correlation found between characteristics meteorological conditions. Therefore a mean background model, specified regionally, may sufficient space. For thicknesses above 0.1, two modes variability characterized Angstrom coefficients 1.2 0.5 corresponding tropospheric maritime models, respectively, identified measurements. allow one fit, within measurement inaccuracies, derived coefficient “pseudo” phase function (the product single-scattering albedo function), key parameters. Importantly, pseudo can coefficient. This means that shipborne Sun photometer made time satellite overpass usually color.