INVESTIGADORES
GRINGS Francisco Matias
artículos
Título:
Estimating flow resistance of wetlands using SAR images and interaction models
Autor/es:
MERCEDES SALVIA; MARIANO FRANCO; FRANCISCO MATIAS GRINGS; PABLO PERNA; HAYDEE KARSZENBAUM; PAOLO FERRAZZOLI
Revista:
Remote Sensing
Editorial:
mpdi.com
Referencias:
Año: 2009 vol. 1 p. 992 - 1008
ISSN:
2072-4292
Resumen:
The inability to monitor wetland drag coefficients at a regional scale is rooted inthe difficulty to determine vegetation structure from remote sensing data. Based on the factthat the backscattering coefficient is sensitive to marsh vegetation structure, this paperpresents a methodology to estimate the drag coefficient from a combination of SARimages, interaction models and ancillary data. We use as test case a severe fire eventoccurred in the Paraná River Delta (Argentina) at the beginning of 2008, when 10% of theherbaceous vegetation was burned up. A map of the reduction of the wetland dragcoefficient is presented.
