The Advanced Solid-state Array Spectroradiometer (ASAS) is an airborne, passive multi-angle spectrometer operated by NASA Goddard Space Flight Center (GSFC). ASAS measures reflectance across 30 spectral channels in the 450 to 880 nm wavelength range to help characterize the directional variability of various land surface cover types. At typical flight altitudes of 4,500 to 5,000 m, ASAS has a spatial resolution of 3 to 4 m at nadir. It has a frame rate ranging from 3 to 64 frames per second.
Instrument Details
- Spectrometer/Radiometer
- Earth Science > Land Surface > Land Use/land CoverEarth Science > Land Surface > TopographyEarth Science > Biosphere > VegetationEarth Science > Land Surface >Earth Science > Biosphere > Ecosystems > Terrestrial Ecosystems > ForestsEarth Science > Land Surface > Surface Radiative Properties > ReflectanceEarth Science > Atmosphere > Atmospheric Radiation > Reflectance
- Land Surface, Troposphere
- 3-64 Hz
- 3-4 m
- 341-666 THz
- https://doi.org/10.1117/12.942278
James Irons
Philip Dabney
NASA
Naval Ocean Systems Center
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