Project Group 6

Estimation of river discharge and surface water storage from spaceborne data: full catchment coverage with optimal space and time resolution

Insufficient observational evidence of hydrological parameters at the global scale is a major impediment for progress in hydrological modeling. As the data provision from in situ gauge networks is deteriorating, satellites come to the rescue. Although spaceborne sensors offer a synoptic and global view by their very nature, satellite products do have their own limitations in terms of accuracy, temporal resolution and spatial coverage.

This project aims to greatly improve the observational database for two key hydrological variables, river discharge and surface water storage, by innovative modeling of results from water level time series from satellite altimetry (project P5) and surface water area time series from satellite imagery (project P7).