AMSR-E observations of rain and flood events over vegetated areas of la Plata basin
This work analyzes AMSR-E signatures collected in two sites of La Plata basin, in South America. Within the wide Chaco forest, an area close to Las Lomitas meteorological station was selected. Here the forest is uniform, but not very dense, with biomass values in the range 70-120 t/ha. After strong...
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2010
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97814244_v_n_p63_Ferrazzoli http://hdl.handle.net/20.500.12110/paper_97814244_v_n_p63_Ferrazzoli |
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paper:paper_97814244_v_n_p63_Ferrazzoli2023-06-08T16:37:24Z AMSR-E observations of rain and flood events over vegetated areas of la Plata basin Forest Hydrology Microwave remote sensing Agricultural fields Brightness temperature difference C-bands Dynamic range E-signature Flood event Flood monitoring Forest Hydrometric stations La Plata basin Land cover Meteorological station Microwave remote sensing Polarization indices Radar data Rain events South America X bands Hydrology Polarization Radiometers Radiometry Rain Remote sensing Water levels Microwaves This work analyzes AMSR-E signatures collected in two sites of La Plata basin, in South America. Within the wide Chaco forest, an area close to Las Lomitas meteorological station was selected. Here the forest is uniform, but not very dense, with biomass values in the range 70-120 t/ha. After strong rain events, appreciable variations of polarization index at C and X band were observed. As expected, the better dynamic range is obtained at C band. Also AMSR-E signatures collected during a strong flooding event in the Delta of Paraná River were analyzed. Variations of polarization index are strong, as expected. Information about the water level in the river was made available by hydrometric stations. We selected specific pixels characterized by different kinds of land cover: agricultural fields, marshes, and planted forests. A significant correlation between polarization index (at various frequencies) and water level is proved. A flood monitoring algorithm based on AMSR-E brightness temperature difference is tested. Optical and radar data are used as ancillary input for calibration and validation proposes. © 2010 IEEE. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97814244_v_n_p63_Ferrazzoli http://hdl.handle.net/20.500.12110/paper_97814244_v_n_p63_Ferrazzoli |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Forest Hydrology Microwave remote sensing Agricultural fields Brightness temperature difference C-bands Dynamic range E-signature Flood event Flood monitoring Forest Hydrometric stations La Plata basin Land cover Meteorological station Microwave remote sensing Polarization indices Radar data Rain events South America X bands Hydrology Polarization Radiometers Radiometry Rain Remote sensing Water levels Microwaves |
| spellingShingle |
Forest Hydrology Microwave remote sensing Agricultural fields Brightness temperature difference C-bands Dynamic range E-signature Flood event Flood monitoring Forest Hydrometric stations La Plata basin Land cover Meteorological station Microwave remote sensing Polarization indices Radar data Rain events South America X bands Hydrology Polarization Radiometers Radiometry Rain Remote sensing Water levels Microwaves AMSR-E observations of rain and flood events over vegetated areas of la Plata basin |
| topic_facet |
Forest Hydrology Microwave remote sensing Agricultural fields Brightness temperature difference C-bands Dynamic range E-signature Flood event Flood monitoring Forest Hydrometric stations La Plata basin Land cover Meteorological station Microwave remote sensing Polarization indices Radar data Rain events South America X bands Hydrology Polarization Radiometers Radiometry Rain Remote sensing Water levels Microwaves |
| description |
This work analyzes AMSR-E signatures collected in two sites of La Plata basin, in South America. Within the wide Chaco forest, an area close to Las Lomitas meteorological station was selected. Here the forest is uniform, but not very dense, with biomass values in the range 70-120 t/ha. After strong rain events, appreciable variations of polarization index at C and X band were observed. As expected, the better dynamic range is obtained at C band. Also AMSR-E signatures collected during a strong flooding event in the Delta of Paraná River were analyzed. Variations of polarization index are strong, as expected. Information about the water level in the river was made available by hydrometric stations. We selected specific pixels characterized by different kinds of land cover: agricultural fields, marshes, and planted forests. A significant correlation between polarization index (at various frequencies) and water level is proved. A flood monitoring algorithm based on AMSR-E brightness temperature difference is tested. Optical and radar data are used as ancillary input for calibration and validation proposes. © 2010 IEEE. |
| title |
AMSR-E observations of rain and flood events over vegetated areas of la Plata basin |
| title_short |
AMSR-E observations of rain and flood events over vegetated areas of la Plata basin |
| title_full |
AMSR-E observations of rain and flood events over vegetated areas of la Plata basin |
| title_fullStr |
AMSR-E observations of rain and flood events over vegetated areas of la Plata basin |
| title_full_unstemmed |
AMSR-E observations of rain and flood events over vegetated areas of la Plata basin |
| title_sort |
amsr-e observations of rain and flood events over vegetated areas of la plata basin |
| publishDate |
2010 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97814244_v_n_p63_Ferrazzoli http://hdl.handle.net/20.500.12110/paper_97814244_v_n_p63_Ferrazzoli |
| _version_ |
1768543348210008064 |