Litto3D is a unique and continuous land-sea database which can provide 3D models of the shape and location of French coastal terrain. A line separates sea and land data acquisition zones, and the associated survey readings obtained using bathymetric lidar technologies or multibeam echosounders for sea readings and airborne lidar topographical surveys for land readings, with 300 m overlap. Litto3D digital models are available in two formats: a set of 3D points and a qualified terrain mesh.

Litto3D Marine Part is an intermediate product of the Litto3D product containing only marine data.Litto3D is a unique and continuous land-sea database which can provide 3D models of the shape and location of French coastal terrain. A line separates sea and land data acquisition zones, and the associated survey readings obtained using bathymetric lidar technologies or multibeam echosounders for sea readings and airborne lidar topographical surveys for land readings, with 300 m overlap. Litto3D digital models are available in two formats: a set of 3D points and a qualified terrain mesh.

Lidar marine part is a unique and continuous land-sea database which can provide 3D models of the shape and location of French coastal terrain. A line separates sea and land data acquisition zones, and the associated survey readings obtained using bathymetric lidar technologies or multibeam echosounders for sea readings and airborne lidar topographical surveys for land readings, with 300 m overlap. Litto3D digital models are available in two formats: a set of 3D points and a qualified terrain mesh. The product Moorea 2015 v.20171015 covers the whole of Moorea.

Lidar marine part is a unique and continuous land-sea database which can provide 3D models of the shape and location of French coastal terrain. A line separates sea and land data acquisition zones, and the associated survey readings obtained using bathymetric lidar technologies or multibeam echosounders for sea readings and airborne lidar topographical surveys for land readings, with 300 m overlap. Litto3D digital models are available in two formats: a set of 3D points and a qualified terrain mesh. The product Bora Bora SAU 2015 v.20160630 covers a geographical area corresponding to the whole island, the lagoon and the reef of Bora Bora.

Litto3D Marine Part is an intermediate product of the Litto3D product containing only marine data.Litto3D is a unique and continuous land-sea database which can provide 3D models of the shape and location of French coastal terrain. A line separates sea and land data acquisition zones, and the associated survey readings obtained using bathymetric lidar technologies or multibeam echosounders for sea readings and airborne lidar topographical surveys for land readings, with 300 m overlap. Litto3D digital models are available in two formats: a set of 3D points and a qualified terrain mesh.

The coastal topo- bathymetric DEM for the coasts of Morbihan with a resolution of 0.0002° (~ 20 m) was prepared as part of the TANDEM project (Programme Investissements d'Avenir, ANR-11-RSNR-00023-01). It covers the French administrative department of Morbihan and part of Loire-Atlantique. This DEM runs from the Gâvres peninsula in the north west to La Baule in the south east and covers the Gulf of Morbihan, the Quiberon bay and peninsula, Houat, Hoëdic and Belle-Ile islands and the Vilaine estuary. The DEM is designed to be implemented in the hydrodynamic models of the TANDEM project in order to estimate the coastal effects of tsunamis for the Atlantic and English Channel, where French nuclear power plants have been installed for about 30 years. This product is available with the Lowest Astronomic Tide (LAT) or the Mean Sea Level (MSL) as a vertical datum.

The high resolution Coastline corresponds to the Highest Astronomical Tide (HAT) with a tidal coefficient of 120 and in normal weather conditions (no sea breeze and mean atmospheric pressure of 1013 hPa). The high resolution coastline is available in french subantarctic islands (984).

Microseismic catalogue with seismic moment and moment magnitude from Drif et al.(2024) at Soultz-sous-Forets 2000. For more details, see the article Induced Seismicity Controlled by Injected Hydraulic Energy: the Case Study of the EGS Soultz-sous-Forets Site by Drif,K., Lengline, O., Kinscher, J., Schmitbuhl, J. (2024) (http://dx.doi.org/10.1029/2023JB028190) This catalog is based on the Microseismic catalogue with moment magnitude and focal mechanisms by N. Cuenot - Soultz-sous-Forets 2000 Stimulation (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS2000-Catalogue_Cuenot_2). Columns 1,2,3,4,5,6 come from the catalog Microseismic catalogue with moment magnitude and focal mechanisms by N. Cuenot - Soultz-sous-Forets 2000 Stimulation The data parameters are the following: Column 1: Date (UTC) Column 2: Time (UTC) Column 3: Latitude (°) Column 4: Longitude (°) Column 5: Depth from GPK1 wellhead (m) Column 6: Moment magnitude Column 7: Seismic moment Column 8: Moment magnitude Last update of data: 07/05/2024

In 1996, three new accelerometers (4-component sensors) built by the CSMA and one hydrophone were deployed. As in past years, the 4-component sondes were located in boreholes 4616 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSF-4616), 4601 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSF-4601) and 4550 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSF-4550) within the granite and the hydrophone was deployed in EPS1 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSF-EPS1). Unlike the previous episodes, the accelerometers were not grouted in the boreholes. The X,Y,Z coordinates in the file refer to the local coordinate system with the GPK1 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSF-GPK1) wellhead as origin: X: Easting in meters from GPK1 wellhead (toward UTM32 East) Y: Northing in meters from GPK1 wellhead (toward UTM32 North) Z: Depth in meters from GPK1 wellhead The local coordinate system is based on the UTM32 system. The coordinates of the stations in the local coordinate system have been obtained from the CSMA report for Socomine by Jones and Jupe, 1997 (Microseismic results from the Soultz 1996 experimental programme). The latitude, longitude and elevation in the WGS84 coordinate system have been derived from the local coordinate system. Last update of data: 16/02/2021

A series of hydraulic tests were performed from August to October 1996 at the GPK2 well (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSF-GPK2). First a production test was conducted in August to determine the productivity of the well. The production test was followed by a second stimulation of GPK2 after the previous one in 1995. The open hole section of the well was re-stimulated at flowrates up to 78 l/s. A total of 28000 m3 of fluid was injected during the test. The stimulation was followed by a stepped injection test to determine the injectivity of the well after the stimulation. Finally, two circulation tests during which the water produced from GPK2 was reinjected in GPK1 (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSF-GPK1) were performed in October 1996. About 7500 microseismic events were detected during the experiments, and about 5700 were located. Dates of the different tests of the 1996 hydraulic programme: - Production test at GPK2: from 09:20 14/08/96 to 03:40 15/08/96 - Stimulation test at GPK2: from 16:30 18/09/96 to 22:15 25/09/96 - Stepped injection test at GPK2: from 10:30 29/09/96 to 04:00 06/10/96 - First circulation test between GPK2 and GPK1: from 10:04 12/10/96 to 12:09 20/10/96 - Second circulation test between GPK2 and GPK1: from 15:30 28/10/96 to 19:10 30/10/96 The Episode contains the following datasets: - Microseismic downhole network - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1996-Downhole_network); - Microseismic catalogue with moment magnitude of the downhole network from CSMA - Soultz-sous-Forêts 1996 Stimulation (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1996-Catalogue) - Microseismic catalogue with seismic moment and moment magnitude from Drif et al.(2024) - Soultz-sous-Forêts 1996 Stimulation (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1996-Catalogue_Drif); - Catalogue with hydraulic data from Drif et al.(2024)- Soultz-sous-Forêts 1996 Stimulation (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1996-Seismic_Hydraulic_Comparaison_Drif); - Flow logs - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1996-Flow_logs); - Temperature logs - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1996-Temperature_logs); - Hydraulic data - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/SSFS1996-Hydraulic);