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A snow wetness retrieval algorithm for sar
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Shi, Jian-Cheng Dozier, Jeff |
| Copyright Year | 1992 |
| Description | The objectives of this study are: (1) to evaluate the backscattering signals response to snow wetness; and (2) to develop an algorithm for snow wetness measurement using C-band polarimetric synthetic aperture radar (SAR). In hydrological investigations, modeling and forecasting of snowmelt runoff requires information about snowpack properties and their spatial variability. In particular, timely measurement of snow parameters is needed for operational hydrology. The liquid water content of snowpack is one of the important parameters. Active microwave sensors are highly sensitive to liquid water in the snowpack because of the large dielectric contrast between ice and water in the microwave spectrum. They are not affected by weather and have a spatial resolution compatible with the topographic variation in alpine regions. However, a quantitative algorithm for retrieval snow wetness has not yet been developed. |
| File Size | 202596 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940012259 |
| Archival Resource Key | ark:/13960/t1mh2j23j |
| Language | English |
| Publisher Date | 1992-06-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Moisture Content Backscattering Radar Geology Topography Weather Forecasting Polarimetry Microwave Spectra Snow Cover Synthetic Aperture Radar Hydrology Models Radar Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
