Wetland marshes Wetlands 4 Argentina 2 Backscattering 2 Conservation of Natural Resources 2 Data reduction 2 Electromagnetic models 2 Environmental Monitoring 2 Envisat-1 2 Parana Delta 2 Precipitation (chemical) 2 Radar 2 Remote sensing 2 South America 2 Synthetic aperture radar 2 Vegetation 2 Water Movements 2 Water levels 2 Water storage 2 article 2 data set 2 ecosystem 2 ecosystem modeling 2 electromagnetic field 2 electromagnetic method 2 environmental management 2 environmental monitoring 2 estimation method 2 flooding 2 image analysis 2