Airborne GNSS-R: A key enabling technology for environmental monitoring
Weather forecast using GNSS-R relies, to a large extent, on data acquired by airborne and spaceborne platforms due to the extended coverage that can be achieved. GEO satellites can retrieve measurements over large areas but with spatial resolutions on the order of thousands of meters per pixel. LEO...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| 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:2117/355891 |
| Acceso en línea: | https://hdl.handle.net/2117/355891 https://dx.doi.org/10.1109/jstars.2021.3076003 |
| Access Level: | acceso abierto |
| Palabra clave: | Geographic information systems Global Positioning System Artificial satellites in navigation Sea measurements Instruments Spatial resolution Soil moisture Sea surface Global navigation satellite system Soil measurements Sistema de posicionament global Satèl·lits artificials en navegació Geodèsia per satèl·lit Sistemes d'informació geogràfica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació |
| Sumario: | Weather forecast using GNSS-R relies, to a large extent, on data acquired by airborne and spaceborne platforms due to the extended coverage that can be achieved. GEO satellites can retrieve measurements over large areas but with spatial resolutions on the order of thousands of meters per pixel. LEO satellites with polar orbits can provide measurements over the entire world, but they cannot provide good spatial or high temporal resolutions by themselves. LEO constellations of small satellites have the same coverage with improved spatial resolution and revisit times by using data fusion techniques. High-altitude pseudo-satellites offer an excellent temporal and spatial resolution but only over limited areas. In this article, the potential of using hosted GNSS-R payloads on commercial aircraft is explored as an alternative and cost-effective means to achieve a very high resolution and a very low revisit time for regional environmental applications. Finally, a case study of soil moisture monitoring over Europe is presented, including an analysis of the expected performance. |
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