Laboratory of Space Geophysical and Oceanographic Studies (LEGOS joint research unit)

The LEGOS research and teaching scientific fields include oceanography and the water cycle in the broadest sense, with the physics of the oceanic, hydrological, cryospheric and atmospheric components, including coastal and climatic components, as well as marine biogeochemistry and geochemistry.
In addition, several Observation Services and working groups allow the lab know-how to be shared, capitalised and disseminated.

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Satellite-Derived Global Waterline Dataset with Environmental Forcings (1993-2019)
Satellite-Derived Global Waterline Dataset with Environmental Forcings (1993-2019)
Oct 6, 2025
Almar, Rafael; Boucharel, Julien; Abessolo Ondoa, Gregoire; Graffin, Marcan; Thoumyre, Grégoire; Papa, Fabrice; Bergsma, Erwin; Anthony, Edward; Melet, Angelique; Regard, Vincent, 2025, "Satellite-Derived Global Waterline Dataset with Environmental Forcings (1993-2019)", https://doi.org/10.23708/YEEOOW, DataSuds, V1, UNF:6:06e3JcjZPrcPVDdzhs5BfA== [fileUNF]
This dataset provides a global, monthly time series of shoreline (waterline) positions derived from optical satellite imagery between 1993 and 2019. It includes cross-shore waterline variations at ~0.27° alongshore resolution worldwide, associated with key environmental drivers a...
data_dictionnary.tab
Oct 6, 2025 - Satellite-Derived Global Waterline Dataset with Environmental Forcings (1993-2019)
Tabular Data - 866 B - 2 Variables, 17 Observations - UNF:6:06e3JcjZPrcPVDdzhs5BfA==
Documentation
Data dictionary describing the variables in the data file
GlobalWaterlineDataset.nc
Oct 6, 2025 - Satellite-Derived Global Waterline Dataset with Environmental Forcings (1993-2019)
Network Common Data Form - 131.3 MB - MD5: 60e0695bb7d6c749ceeca84a915f04a0
Données
NetCDF data file (.nc), compatible with common scientific analysis tools (MATLAB, Python, R, etc.).
ReadMe_YEEOOW.txt
Oct 6, 2025 - Satellite-Derived Global Waterline Dataset with Environmental Forcings (1993-2019)
Plain Text - 2.8 KB - MD5: b866aad17efce1bc7f9acce8bff0e615
Documentation
Contains citation, description and conditions of use of dataset data
Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 03-05 September 2017
Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 03-05 September 2017
Sep 22, 2025 - Field campaigns data
Piton, Violaine; Duy Vinh, Vu; Herrmann, Marine; Ouillon, Sylvain, 2025, "Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 03-05 September 2017", https://doi.org/10.23708/UPI9FU, DataSuds, V2, UNF:6:7a7PsuEiqzgVEFEcBcbSyQ== [fileUNF]
These data were collected in the frame of Violaine Piton’s PhD at LEGOS (Toulouse, France), whose subject is to study the dynamics and sediment transport along the estuary-coastal area continuum. The evolution of the Red River delta in terms of siltation, erosion and accretion of...
ReadMe_UPI9FU.txt
Sep 22, 2025 - Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 03-05 September 2017
Plain Text - 3.2 KB - MD5: b9532dbadcb8185e060abde567591b10
Documentation
Contains citation, description and conditions of use of dataset data
Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 06-08 December 2017
Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 06-08 December 2017
Sep 22, 2025 - Field campaigns data
Piton, Violaine; Duy Vinh, Vu; Herrmann, Marine; Ouillon, Sylvain, 2025, "Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 06-08 December 2017", https://doi.org/10.23708/RWDVKC, DataSuds, V2, UNF:6:F6qUgvJVBsWHcgC9o2gLNg== [fileUNF]
These data were collected in the frame of Violaine Piton’s PhD at LEGOS (Toulouse, France), whose subject is to study the dynamics and sediment transport along the estuary-coastal area continuum. The evolution of the Red River delta in terms of siltation, erosion and accretion of...
ReadMe_RWDVKC.txt
Sep 22, 2025 - Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 06-08 December 2017
Plain Text - 3.2 KB - MD5: a6f3f3857f26443111b92254539ef1ce
Documentation
Contains citation, description and conditions of use of dataset data
Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 26-28 August 2017
Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 26-28 August 2017
Sep 22, 2025 - Field campaigns data
Piton, Violaine; Duy Vinh, Vu; Herrmann, Marine; Ouillon, Sylvain, 2025, "Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 26-28 August 2017", https://doi.org/10.23708/L5LZT3, DataSuds, V2, UNF:6:U0Bk2zb4qwgpYpT7AClq/g== [fileUNF]
These data were collected in the frame of Violaine Piton’s PhD at LEGOS (Toulouse, France), whose subject is to study the dynamics and sediment transport along the estuary-coastal area continuum. The evolution of the Red River delta in terms of siltation, erosion and accretion of...
ReadMe_L5LZT3.txt
Sep 22, 2025 - Hydrological and hydrochemical data collected from Van Uc River and estuary (Vietnam), 26-28 August 2017
Plain Text - 3.2 KB - MD5: 1c8625e7b89c479a0ba0583107503e6b
Documentation
Contains citation, description and conditions of use of dataset data
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