Across much of Australia, inundation is seasonally variable and whilst areas of open water can be detected using optical remote sensing data (Landsat or MODIS, for example), inundation beneath vegetation is often difficult to discern. The Centre for Ecosystem Sciences is therefore proposing the use and development of techniques for detecting aquatic herbaceous and wooded vegetation using combinations of C-band SAR and L-band SAR data in combination with optical remote sensing data, with the resulting data layers feeding into models of environmental flows.