Title :
Active and passive microwave systems in the assessment of flooded area fraction and mean water level in the Paraná River floodplain
Author :
Salvia, Mercedes ; Grings, Francisco ; Barraza, Veronica ; Perna, Pablo ; Karszenbaum, Haydee ; Feirazzoli, P.
Author_Institution :
Grupo de Teledeteccion, Inst. de Astron. y Fis. del Espacio, Buenos Aires, Argentina
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 passive and active microwave signatures. In particular, AMSR-E at X band, and C band ENVTSAT ASAR in Wide Swath mode and ALOS PALSAR in WB1 mode, 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 two flooding events which occurred in the Paraná River Delta in 2007 and from December 2009 to April 2010. Obtained results are consistent with in situ measurements of river water level.
Keywords :
floods; hydrological techniques; remote sensing by radar; rivers; synthetic aperture radar; AD 2007; AD 2009 12 to 2010 04; ALOS PALSAR; AMSR-E; C-band; Central South America; ENVTSAT ASAR; Parana River floodplain; X-band; flooded area fraction; mean water level; microwave systems; river delta; vegetated river floodplain; vegetation emissivity; Floods; Instruments; Microwave theory and techniques; Satellites; Active and passive microwave systems; Paraná River Delta; flooded fraction; water level;
Conference_Titel :
Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2012 12th Specialist Meeting on
Conference_Location :
Rome
Print_ISBN :
978-1-4673-1468-8
DOI :
10.1109/MicroRad.2012.6185239
