Analysis of the capability of C-band fully polarimetric SAR data to monitor snowed environments
[ANGLÈS] This study focuses on snow cover monitoring based on C-Band fully Polarimetric Synthetic Aperture Radar (PolSAR) data. Due to the lack of polarimetric sensors, most of the previous studies have been based on single polarization data, supported by time or frequency diversities, resulting in...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2099.1/20327 |
| Acceso en línea: | https://hdl.handle.net/2099.1/20327 |
| Access Level: | acceso abierto |
| Palabra clave: | Synthetic aperture radar Polarimetry SAR snow water equivalent C-Band Polarimetria nieve banda C Radar d'obertura sintètica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar |
| Sumario: | [ANGLÈS] This study focuses on snow cover monitoring based on C-Band fully Polarimetric Synthetic Aperture Radar (PolSAR) data. Due to the lack of polarimetric sensors, most of the previous studies have been based on single polarization data, supported by time or frequency diversities, resulting in low sensitivity to the presence of snow and its physical parameters below X-Band. As it is shown, the use of polarimetry may overcome the previous limitations allowing to differentiate between dry, wet and absence of snow, making it possible to introduce a snow monitoring methodology based on multi-temporal PolSAR data and the use of target decomposition theorems. In general, snow scattering at C-Band is due primarily to surface and volume scattering. The previous theses are supported by results based on a case study over the North-Eastern Pyrenees, Spain, monitored with the Radarsat-2 system. |
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