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  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in the estuary of Tagus river. The depth values are referred to the Hydrographic Zero (ZH).

  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in Cascais. The depth values are referred to the Hydrographic Zero (ZH).

  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in Costa da Caparica. The depth values are referred to the Hydrographic Zero (ZH).

  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in Formosa. The depth values are referred to the Hydrographic Zero (ZH).

  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in the Douro estuary. The depth values are referred to the Hydrographical Zero (ZH).

  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in Guadiana River. The depth values are referred to the Hydrographic Zero (ZH).

  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in Aveiro. The depth values are referred to the Hydrographic Zero (ZH).

  • This dataset contains a depth grid with 100 meters spacing, built on sounding information from the hydrographic surveys in Sines. The depth values are referred to the Hydrographic Zero (ZH).

  • The Geological Survey conducted on the south coast of the island of Porto Santo, aimed at the characterization of underwater morphology and sedimentary cover between the coastline and 100 meters deep. This project is the result of an agreement made between the Hydrographic Institute and the Regional Government of Madeira.