Artículo
Modeling Temporal Evolution of Junco Marshes Radar Signatures
Grings, Francisco Matias
; Ferrazzoli, Paolo; Karszenbaum, Haydee
; Tiffenberg, Javier Sebastian
; Kandus, Patrici; Guerriero, Leila; Jacobo Berlles, Julio César Alberto
Fecha de publicación:
10/2005
Editorial:
Institute of Electrical and Electronics Engineers
Revista:
Ieee Transactions On Geoscience And Remote Sensing
ISSN:
0196-2892
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work, multitemporal synthetic aperture radar (SAR) data in conjunction with an electromagnetic (EM) model and a vegetation growth model were used to monitor and explain burn-regrowth events of junco vegetation in a wetland environment. The data used were from Radarsat-1, ENVISAT Advanced Synthetic Aperture Radar (ASAR), and European Remote Sensing 2 (ERS-2) temporal series. The EM model is based on radiative transfer theory and describes junco vegetation as a set of vertical dielectric cylinders on a flat flooded surface. It was used, together with the vegetation growth model, to predict the temporal evolution
of the radar response during a burn–regrowth event. This simulation was compared with the ERS-2 vertical (VV) data. It was observed a “bell-shaped” temporal trend that was confirmed by the simulated data with a mean error of 2.5 dB. Additionally, in view of current and future ENVISAT ASAR Alternating Polarization Mode precision data, the horizontal (HH) SAR temporal response was also simulated giving as a result strong differences between simulated HH and VV temporal trends. These differences are in good agreement with the ones observed between Radarsat-1 HH and ERS-2 VV SAR data acquired at close dates and also with the same differences observed between HH and VV ENVISAT ASAR data. Electromagnetic modeling results provide a sound theoretical interpretation of these observations.
Palabras clave:
Electromagnetic (Em)
,
Radar
,
Wetlands
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
Grings, Francisco Matias; Ferrazzoli, Paolo; Karszenbaum, Haydee; Tiffenberg, Javier Sebastian; Kandus, Patrici; et al.; Modeling Temporal Evolution of Junco Marshes Radar Signatures; Institute of Electrical and Electronics Engineers; Ieee Transactions On Geoscience And Remote Sensing; 43; 10; 10-2005; 2238-2245
Compartir
Altmétricas