Satellite estimation of flooded area and river water level dynamics

Author

Salvia, M. ; Grings, F. ; Bruscantini, C. ; Barraza, V. ; Perna, P. ; Ferrazzoli, P. ; Karszenbaum, H.

Author_Institution

Inst. de Astron. y Fis. del Espacio (IAFE), Grupo de Teledeteccion Cuantitativa, UBA, Buenos Aires, Argentina

fYear

2014

fDate

13-18 July 2014

Firstpage

4351

Lastpage

4354

Abstract

The objective of this paper is to analyze the dynamics of flooded area and water level in a floodplain wetland. To this end we studied a flood that occurred in 2009-2010 related to an ENSO (El Niño/Southern Oscillation) event over the Paraná River delta. The method for obtaining flooded area fraction (f_f) and floodplain water level (WL), which is an extension of previously developed algorithms based on passive data, exploits the synergy of passive and active microwave signatures and model simulations of vegetation emissivity. The results are compared with, and plotted against, water level from Rosario port gauge and water level of a lagoon inside the floodplain obtained by microwave altimetry. This graphs are analyzed in terms of the possible equivalent topography of the floodplain.

Keywords

El Nino Southern Oscillation; floods; rivers; vegetation; AD 2009 to 2010; ENSO; Parana river delta; Rosario port gauge; active microwave signatures; flooded area; flooded area fraction; floodplain topography; floodplain water level; floodplain wetland; lagoon water level; river water level dynamics; satellite estimation; vegetation emissivity; Data models; Estimation; Floods; Microwave oscillators; Microwave theory and techniques; Remote sensing; Rivers; Flooded area; Paraná River delta; equivalent topography; microwave remote sensing; water level;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International

Conference_Location

Quebec City, QC

Type

conf

DOI

10.1109/IGARSS.2014.6947453

Filename

6947453