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  • Vector file representing the distribution of maize in the Berambadi watershed located in southern India, Karnataka State.

  • Vector file representing the Berambadi watershed located in southern India, Karnataka State.

  • Vector file representing the distribution of maize in the Berambadi watershed located in southern India, Karnataka State.

  • Le service permet de consulter les données de la ZABRI représentées sur des cartes.

  • Orthophotos were obtained concurrently with photogrammetric DEMs. They were derived from Unmanned Aerial Vehicle (UAV) imagery processed using Structure-from-Motion photogrammetry (survey method PHO).

  • Hydrographic surveys have been conducted using small boats of the Institut Universitaire Européen de la Mer (https://www.flotteoceanographique.fr/en/Facilities/Vessels-Deep-water-submersible-vehicles-and-Mobile-equipments/Station-vessels/Albert-Lucas), which can be equipped with a range of sensors for data acquisition in the nearshore zone. For each survey, we prepared a Digital Elevation Model (DEM) at a fixed sampling distance of 0.5 m.

  • DEMs covering both subaerial and subtidal domains were created by fusing topographic and bathymetric DEMs collected concurrently. Fusion DEMs provide an overview of sedimentary bedforms across the air-water interface. Comparison of measured topographic and bathymetric elevations at the overlap provides means for additional data verification.

  • In order to facilitate capturing three-dimensional beach change, full surveys of the subaerial beach have been conducted starting in 2004 using RTK-GNSS (survey method GPS), Unmanned Aerial Vehicle (UAV) imagery processed using Structure-from-Motion (SfM) photogrammetry (survey method PHO) and terrestrial laser-scanning (survey method TLS). For each survey, we prepared a Digital Elevation Model (DEM) at a fixed sampling distance of 0.5 m.

  • Continuous tidal levels spanning the period 2000-2019 are provided alongside topo-bathymetric and wave datasets. The astronomical tide dataset starts three years before beach morphological observations. Tidal levels were derived from existing databases furnished by external organisations.

  • Beach profiling using RTK-GNSS (survey method GPS) represents one of the most convenient method for frequent resurveys. Since 2003, profile surveys have been (approx.) weekly for the first year, fortnightly between January 2004 and June 2005, and near-monthly thereafter, with occasional gaps in the data due to equipment misfunctioning and maintenance. Trimble 5700/5800 and Topcon Hiper V GPS systems were used for data acquisition.