Africa · River database
Africa RiverDB
River water-level time series from Sentinel-3 and Sentinel-6 FF-SAR altimetry.
Water Surface ElevationExplore database
Satellite hydrology research portal
Inland water levels, seen in finer detail.
Explore river and lake water-level time series derived from Fully-Focused Synthetic Aperture Radar (FF-SAR) processing of Sentinel-3 and Sentinel-6 satellite altimetry observations.
Developed by the University of Bonn, Institute of Geodesy and Geoinformation (UniBonn-IGG) as part of DETECT (CRC 1502) ↗
Africa & Europe
Rivers & lakes
Sentinel-3 & Sentinel-6
ALTIMETRY / FF-SARSCHEMATIC VIEW
Satellite ground track
Inland water return
WATER-LEVEL TIME SERIESWSE · illustrative
Not actual observations
Explore the data
Choose a database
Select a region and water-body type to enter the corresponding water-level time-series portal.
Europe · River database
Europe RiverDB
River water-level time series from Sentinel-3 and Sentinel-6 FF-SAR altimetry.
Water Surface ElevationExplore database
Africa · Lake database
Africa LakeDB
Lake water-level time series from Sentinel-3 and Sentinel-6 FF-SAR altimetry.
Water Surface ElevationExplore database
Europe · Lake database
Europe LakeDB
Lake water-level time series from Sentinel-3 and Sentinel-6 FF-SAR altimetry.
Water Surface ElevationExplore database
From observation to information
A satellite-based view of inland waters
DETECT–DIWASAR uses high-resolution FF-SAR altimetry processing to support the study of inland-water surface elevations. The database portals organize water-level time series by geographic region and water-body type.
01 / OBSERVE
Satellite observations
Sentinel-3 and Sentinel-6 radar altimetry provide the source observations for river and lake monitoring.
02 / PROCESS
FF-SAR processing
Fully-Focused SAR processing enhances along-track detail and supports the analysis of inland-water echoes, including off-nadir returns.
03 / EXPLORE
Water-level time series
Access the regional RiverDB and LakeDB portals to examine the available time-series data.
About the project
Designed for inland-water altimetry research
DIWASAR (Database of Inland Waters from Altimetry fully-focused SAR) was developed by the University of Bonn, Institute of Geodesy and Geoinformation (UniBonn-IGG). The portal provides a single starting point for discovering river and lake water-level time series derived from FF-SAR satellite altimetry.
The work is part of DETECT, Collaborative Research Centre (CRC) 1502. For more information, visit the official DETECT project website ↗.
Regional portals for Africa and Europe
Dedicated river and lake datasets
Sentinel-3 and Sentinel-6 FF-SAR observations
Get in touch
Contact
For questions about DIWASAR and the river and lake water-level time-series databases, please contact:
Jiaming Chen
University of Bonn · IGG
chenjiaming@uni-bonn.de