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Surface scattering properties estimated from modeling ASAS multiple emission angle reflectance data over the Lunar Crater Volcanic Field, Nevada
Author(s) -
Guinness Edward A.,
Arvidson Raymond E.,
Irons James R.,
Harding David J.
Publication year - 1991
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/91gl02664
Subject(s) - impact crater , albedo (alchemy) , remote sensing , geology , volcano , cobble , surface roughness , scattering , multispectral image , reflectivity , environmental science , atmospheric sciences , optics , physics , astronomy , art , ecology , seismology , performance art , habitat , biology , art history , quantum mechanics
ASAS multispectral data were acquired over Lunar Lake playa at 12 different lighting and viewing geometries. Atmospheric models and field‐based data demonstrate that atmospheric contributions to ASAS data were relatively small (<15%) and were thus ignored in analyses of surface photometric properties. ASAS data of an artificially roughened playa and cobble‐strewn surfaces exhibit trends of increasing reflectance as phase angle decreases. The reflectance of a natural playa surface exhibits Lambertian scattering properties that cannot be replicated with the Hapke [1986] photometric function. The Hapke model does fit the rough and cobble‐strewn playa data with single scattering albedo, asymmetry factor, and roughness terms consistent with known properties of these surfaces. No published photometric model explains the reflectance variations of all three surfaces.