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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 15, issue 8
Hydrol. Earth Syst. Sci., 15, 2679–2692, 2011
https://doi.org/10.5194/hess-15-2679-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.
Hydrol. Earth Syst. Sci., 15, 2679–2692, 2011
https://doi.org/10.5194/hess-15-2679-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 26 Aug 2011

Research article | 26 Aug 2011

Estimating flooded area and mean water level using active and passive microwaves: the example of Paraná River Delta floodplain

M. Salvia1, F. Grings1, P. Ferrazzoli2, V. Barraza1, V. Douna1, P. Perna1, C. Bruscantini1, and H. Karszenbaum1 M. Salvia et al.
  • 1Instituto de Astronomía y Física del Espacio (IAFE, CONICET-UBA), Ciudad Universitaria, Pabellón IAFE, Buenos Aires, Argentina
  • 2Tor Vergata University, Ingegneria, DISP, 00133 Rome, Italy

Abstract. This paper describes a procedure to estimate both the fraction of flooded area and the mean water level in vegetated river floodplains by using a synergy of active and passive microwave signatures. In particular, C band Envisat ASAR in Wide Swath mode and AMSR-E at X, Ku and Ka band, are used. The method, which is an extension of previously developed algorithms based on passive data, exploits also model simulations of vegetation emissivity. The procedure is applied to a long flood event which occurred in the Paraná River Delta from December 2009 to April 2010. Obtained results are consistent with in situ measurements of river water level.

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