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Progress in radar snow research. [brookings, south dakota
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ulaby, F. T. Aslam, A. Fung, A. K. Stiles, W. H. |
| Copyright Year | 1981 |
| Description | Multifrequency measurements of the radar backscatter from snow-covered terrain were made at several sites in Brookings, South Dakota, during the month of March of 1979. The data are used to examine the response of the scattering coefficient to the following parameters: (1) snow surface roughness, (2) snow liquid water content, and (3) snow water equivalent. The results indicate that the scattering coefficient is insensitive to snow surface roughness if the snow is drv. For wet snow, however, surface roughness can have a strong influence on the magnitude of the scattering coefficient. These observations confirm the results predicted by a theoretical model that describes the snow as a volume of Rayleig scatterers, bounded by a Gaussian random surface. In addition, empirical models were developed to relate the scattering coefficient to snow liquid water content and the dependence of the scattering coefficient on water equivalent was evaluated for both wet and dry snow conditions. |
| File Size | 27962859 |
| Page Count | 168 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820004637 |
| Archival Resource Key | ark:/13960/t9964cc1m |
| Language | English |
| Publisher Date | 1981-02-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Snow South Dakota Backscattering Data Surface Roughness Ground Truth Remote Sensing Scatterometers Moisture Content Microwave Spectrometers Radar Scattering Stratification Microwave Emission Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
