UMR LEGOS

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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1 to 10 of 112 Results

Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023) Nov 21, 2025 Boucharel, Julien; Almar, Rafael; Jin, Fei-Fei; Zhao, Sen; Stuecker, Malte; Dewitte, Boris, 2025, "Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023)", https://doi.org/10.23708/OUZPH4, DataSuds, V1 This dataset provides global monthly statistics of coastal total water levels (TWL) and associated exceedance metrics for the period January 1958 to December 2023. The Total Water Level (TWL) is defined as the sum of Sea Level Anomaly (SLA), wave runup (R), and tide (T). The data...
coastal_monthly_mean_max_hoursovertop_1958_2023_v1.nc Nov 21, 2025 - Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023) Network Common Data Form - 767.9 MB - MD5: be1f430938493d637388afae25448695 Données Data file in NetCDF format
documentation.pdf Nov 21, 2025 - Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023) Adobe PDF - 116.0 KB - MD5: 894671a0cf4805064ac8e78735e751ee Documentation Documentation file describing how the data was produced
ReadMe_OUZPH4.txt Nov 21, 2025 - Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023) Plain Text - 2.4 KB - MD5: 8870158ec732c233a0765dd1dcc53731 Documentation contains the citation, description and conditions of use, or even access, depending on the case, to the dataset
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 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

Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023)

Nov 21, 2025

Boucharel, Julien; Almar, Rafael; Jin, Fei-Fei; Zhao, Sen; Stuecker, Malte; Dewitte, Boris, 2025, "Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023)", https://doi.org/10.23708/OUZPH4, DataSuds, V1

This dataset provides global monthly statistics of coastal total water levels (TWL) and associated exceedance metrics for the period January 1958 to December 2023. The Total Water Level (TWL) is defined as the sum of Sea Level Anomaly (SLA), wave runup (R), and tide (T). The data...

coastal_monthly_mean_max_hoursovertop_1958_2023_v1.nc

Nov 21, 2025 - Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023)

Network Common Data Form - 767.9 MB -

Données

Data file in NetCDF format

documentation.pdf

Nov 21, 2025 - Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023)

Adobe PDF - 116.0 KB -

Documentation

Documentation file describing how the data was produced

ReadMe_OUZPH4.txt

Nov 21, 2025 - Global Coastal Total Water Level Variability and Exceedance Statistics (1958–2023)

Plain Text - 2.4 KB -

Documentation

contains the citation, description and conditions of use, or even access, depending on the case, to the dataset

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 -

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 -

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 -

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

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 -

Documentation

Contains citation, description and conditions of use of dataset data

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