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The applicability of imaging spectrometry to the measurement of foliar chemistry of herbaceous wetland vegetation was assessed for cultivated rice. Multiple samples were obtained from five California rice fields for analyses of nitrogen and lignin concentrations, and Airborne Visible/Infrared...
The empirical study reported in this article focused on the relationships between vegetation properties and reflectance measured on a corn canopy throughout its phenological evolution by means of a truck-mounted speetroradiometer. The objective was to produce relationships between spectral...
Aerosol scatters solar radiation before it reaches the surface and scatters and absorbs it again after it is reflected from the surface and before it reaches the satellite sensor. The effect is spectrally and spatially dependent. Therefore, atmospheric aerosol (dust, smoke, and air pollution...
Accurate cloud detection in Advanced Very High Resolution Radiometer (AVHRR) data over land is a difficult task complicated by spatially and temporally varying land surface reflectances and emissivities. The AVHRR Split-and-Merge Clustering (ASMC) algorithm for cloud detection in A VHRR scenes...
Linear mixing models are widely used in terrestrial remote sensing, with the errors in these models being often attributed to “nonlinear” mixing. Nonlinear mixing refers to the interaction of light with multiple target materials. Reflectance data from creosote bush in the Manix Basin of the...
A cloud detection algorithm was designed as an adjunct to a companion edge-detection algorithm. The cloud detection integrates two distinct algorithms: one based on multiimage processing, the other on single-image analysis. The multiimage portion of the cloud detection algorithm operates on a...
A Fraunhofer Line Radiometer (FLR) measured solar-excited chlorophyll a fluorescence ( F ) as an indicator of photosynthetic capacity in leaves of Washingtonia robusta (palm) and Vitis vinifera (grape). Under clear skies, the FLR utilized the Fraunhofer line-depth principle (FLDP) to detect F...
The Hapke bidirectional reflectance model has been widely used for soil modeling, but gives significant errors when the soil scatters very strongly and anisotropically. In our new model, we decompose the radiation field into three components instead of two: single-scattering radiance,...
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