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RISMonitoring of Sahelian Aerosol and Atmospheric Water Vapor Content Characteristics from Sun Photometer Measurements
Publisher: American Meteorological Society
Abstract: Atmospheric measurements in two Sahelian sites in West Africa are presented and analyzed. The measurements were performed using a sun photometer with five bands in the visible and near-infrared range of the solar spectrum. ...
Accuracy of Satellite Land Surface Reflectance Determination
Publisher: American Meteorological Society
Abstract: An accuracy budget of the surface reflectance determination from Meteosat geostationary satellite data is performed. Error analysis allows identification of three main problems: calibration uncertainty of the Meteosat ...
Satellite Estimation of Solar Irradiance at the Surface of the Earth and of Surface Albedo Using a Physical Model Applied to Metcosat Data
Publisher: American Meteorological Society
Abstract: A physically based model is used to derive downward solar irradiance at the surface of the earth and surface albedo from Meteosat satellite measurements in the wavelength range between 0.40 and 1. 1 0 ?m. The model takes ...
Calibrating a Coupled SVAT–Vegetation Growth Model with Remotely Sensed Reflectance and Surface Temperature—A Case Study for the HAPEX-Sahel Grassland Sites
Publisher: American Meteorological Society
Abstract: Models simulating the seasonal growth of vegetation have been recently coupled to soil?vegetation?atmosphere transfer schemes (SVATS). Such coupled vegetation?SVATS models (V?S) account for changes of the vegetation leaf ...
Global-Scale Assessment of Vegetation Phenology Using NOAA/AVHRR Satellite Measurements
Publisher: American Meteorological Society
Abstract: Phenology and associated canopy development exert a strong control over seasonal energy and mass exchanges between the earth?s surface and the atmosphere. Satellite measurements are used to assess main phenological stages ...