NASA Technical Reports Server (NASA) · 1985 · 11 citations · 0 references
Natural SciencesEarth SciencesForestryAtmospheric RadiationAtmospheric ScienceRemote SensingAtmospheric CorrectionAtmospheric Effects On ObservationsLand Surface MonitoringLeaf Area Index EstimationVegetation IndicesVegetation MonitoringAerial Forest InventoryCanopy Variability AssessmentLeaf Area Index AssessmentLeaf Area Index MeasurementRadianceRemote Sensing-based EstimationTemporal Variability Of Atmospheric ConditionsVegetation Biophysical Parameter Retrieval
An analysis is presented of the magnitude and variability of the effect of the atmosphere on high-altitude Daedalus Airborne Thematic Mapper data. By regressing ATM radiances against ground radiances (from measurements by a helicopter-mounted Barnes Modular Multiband Radiometer), it was possible to account for atmospheric conditions and variability across a 250 km transect in Oregon to estimate coniferous forest leaf area index. The technique permitted scene contrast to be increased, providing an improved capability for measurement of ground feature radiance.