Statistics – Applications
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..310e&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 310-312 (SEE N92-10728 01-91)
Statistics
Applications
Backscattering, Debris, Mars Surface, Mathematical Models, Profilometers, Radar Scattering, Surface Roughness, Algorithms, Elevation, Infrared Lasers, Laser Applications, Remote Sensing, Space Observations (From Earth), Spectrum Analysis
Scientific paper
The topographies of several debris flow units near the Mount St. Helens Volcano were measured at lateral scales of millimeters to meters in September 1990. The objective was to measure the surface roughness of the debris flows at scales smaller than, on the order of, and larger that the radar wavelength of common remote sensing radars. A laser profiling system and surveying instruments were used to obtain elevation data for square areas that varied in size from 10 to 32 cm. The elevation data were converted to estimates of the power spectrum of surface roughness. The conversions were based upon standard periodogram techniques, and upon a modified spectral estimation technique that was developed.
Austin Richard T.
England Anthony W.
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