Abstract
Satellite remote sensing observations offer unique possibilities to monitor, understand and predict hydrological hazards, particularly in ungauged catchments. In this study, we use state-of-the-art multi-mission remote sensing observations to update a hydrological model of the poorly instrumented Ogooué river in Gabon. We use a conceptual rainfall-runoff model forced with satellite-based climate observations; and calibrate the model parameters using an aggregated objective function including Sentinel-3 satellite altimetry and GRACE/GRACE-FO total water storage. The model is used to evaluate flood risk in combination with Sentinel-1 water surface extent and flood occurrence maps and to simulate the potential impact of climate change on the rainfall-runoff processes in the catchment.
Original language | English |
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Title of host publication | Proceedings of 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS |
Publisher | IEEE |
Publication date | 2021 |
Pages | 451-454 |
ISBN (Print) | 978-1-6654-0369-6 |
DOIs | |
Publication status | Published - 2021 |
Event | 2021 IEEE International Geoscience and Remote Sensing Symposium - Brussels, Belgium Duration: 11 Jul 2021 → 16 Jul 2021 https://ieeexplore.ieee.org/xpl/conhome/9553015/proceeding |
Conference
Conference | 2021 IEEE International Geoscience and Remote Sensing Symposium |
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Country/Territory | Belgium |
City | Brussels |
Period | 11/07/2021 → 16/07/2021 |
Internet address |
Series | IEEE International Geoscience and Remote Sensing Symposium Proceedings |
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ISSN | 2153-6996 |
Keywords
- Flood
- Catchment hydrology
- Surface water extent
- Water surface elevation
- Altimetry