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Grings, F.M.; Ferrazzoli, P.; Karszenbaum, H.; Salvia, M.; Kandus, P.; Jacobo-Berlles, J.C.; Perna, P. "Model investigation about the potential of C band SAR in herbaceous wetlands flood monitoring" (2008) International Journal of Remote Sensing. 29(17-18):5361-5372
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Abstract:

Wetlands are areas where the presence of water at or near the soil surface drives the natural system. Imaging radars (SARs) have distinct characteristics which make them of significant value for monitoring and mapping wetland inundation dynamics. The presence or absence of water (which has a much higher dielectric constant than dry or wet soil) in wetlands may significantly alter the signal detected from these areas depending on the dominant vegetation type, density, and height. The objective of this paper is to present our current research efforts to explain and correctly simulate the radar response of wetland vegetation/inundation mixtures, and use simulations as an aid for retrieval applications. The radar response of junco marshes under different flood conditions and vegetation stages is analysed using a set of 13 multipolarization ENVISAT ASAR scenes acquired over the ParanáRiver Delta marshes during the period 2003-2005. The main aspect of the approach followed is the simulation of SAR wave interactions with vegetation and water, using an adapted and improved version of the EM model developed at Tor Vergata University. The results obtained indicate that with the refined EM model, it is possible to represent with a good accuracy VV and HH SAR responses of junco marshes for a variety of environmental conditions. Further work and data are needed to explain measured HV backscattering. The general agreement obtained between simulations and observations permitted the development of a simple retrieval scheme, and estimates of water level below the canopy were obtained for different environmental conditions. RMS errors of forward simulations and retrievals are reported and discussed. © 2008 Taylor & Francis.

Registro:

Documento: Artículo
Título:Model investigation about the potential of C band SAR in herbaceous wetlands flood monitoring
Autor:Grings, F.M.; Ferrazzoli, P.; Karszenbaum, H.; Salvia, M.; Kandus, P.; Jacobo-Berlles, J.C.; Perna, P.
Filiación:Instituto de Astronomía y Física del Espacio (IAFE), Ciudad Universitaria, 1428 vBuenos Aires, Argentina
Universitàdi Roma 'Tor Vergata', Facoltàdi Ingegneria, Dipartimento di Informatica, Sistemi e Produzione (DISP), Via del Politecnico 1, 00133 Rome, Italy
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales (FCEyN), Dpto. de Ecologia, Genetica y Evolucion, Laboratorio de Ecol. Regional, Grupo de Investigaciones en Ecol. de Humedales, Cd Universitaria, Pab. II, 1428 Buenos Aires, Argentina
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales (FCEyN), Dpto. de Computación, Ciudad Universitaria, Pab. I, 1428 Buenos Aires, Argentina
Palabras clave:Digital storage; Floods; Remote sensing; Synthetic aperture radar; Vegetation; Water levels; Environmental conditions; Forward simulation; Multi-polarization; Presence of water; Research efforts; Retrieval applications; Wave interactions; Wetland vegetation; Wetlands
Año:2008
Volumen:29
Número:17-18
Página de inicio:5361
Página de fin:5372
DOI: http://dx.doi.org/10.1080/01431160802036409
Título revista:International Journal of Remote Sensing
Título revista abreviado:Int. J. Remote Sens.
ISSN:01431161
CODEN:IJSED
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01431161_v29_n17-18_p5361_Grings

Referencias:

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Citas:

---------- APA ----------
Grings, F.M., Ferrazzoli, P., Karszenbaum, H., Salvia, M., Kandus, P., Jacobo-Berlles, J.C. & Perna, P. (2008) . Model investigation about the potential of C band SAR in herbaceous wetlands flood monitoring. International Journal of Remote Sensing, 29(17-18), 5361-5372.
http://dx.doi.org/10.1080/01431160802036409
---------- CHICAGO ----------
Grings, F.M., Ferrazzoli, P., Karszenbaum, H., Salvia, M., Kandus, P., Jacobo-Berlles, J.C., et al. "Model investigation about the potential of C band SAR in herbaceous wetlands flood monitoring" . International Journal of Remote Sensing 29, no. 17-18 (2008) : 5361-5372.
http://dx.doi.org/10.1080/01431160802036409
---------- MLA ----------
Grings, F.M., Ferrazzoli, P., Karszenbaum, H., Salvia, M., Kandus, P., Jacobo-Berlles, J.C., et al. "Model investigation about the potential of C band SAR in herbaceous wetlands flood monitoring" . International Journal of Remote Sensing, vol. 29, no. 17-18, 2008, pp. 5361-5372.
http://dx.doi.org/10.1080/01431160802036409
---------- VANCOUVER ----------
Grings, F.M., Ferrazzoli, P., Karszenbaum, H., Salvia, M., Kandus, P., Jacobo-Berlles, J.C., et al. Model investigation about the potential of C band SAR in herbaceous wetlands flood monitoring. Int. J. Remote Sens. 2008;29(17-18):5361-5372.
http://dx.doi.org/10.1080/01431160802036409