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Mapping Projects

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Regional mapping projects

Through the Sub-Committee on Regional Undersea Mapping (SCRUM), GEBCO is aiming to build on and extend its collaboration with regional mapping groups in order to improve its global bathymetric model.

The map below shows the geographic regions covered by some of these projects. Click on an area to find out more.

regional mapping projects International Bathymetric Chart of the Southern Ocean (IBCSO) International Bathymetric Chart of the Arctic Ocean (IBCAO) International Bathymetric Chart of the South East Pacific (IBCSEP) International Bathymetric Chart of the Caribbean Sea and the Gulf of Mexico (IBCCA) International Bathymetric Chart of the South East Pacific (IBCSEP) Indian Ocean Bathymetric Compilation (IOBC) Southwest Indian Ocean Bathymetric Compilation (swIOBC EMODnet EMODnet IBCM Baltic Sea Bathymetry Database IBCEA

International Bathymetric Chart (IBC) Regional Mapping Projects

GEBCO has long benefitted from contributions from the work of the IBC mapping projects. Find out more about the individual projects from their web sites (where available) hosted at the US National Geophysical Data Center:

International Hydrographic Organization (IHO) regional coordination work

The main aims of the IHO Inter-Regional Coordination Committee (IRCC) are to establish, coordinate and enhance cooperation in hydrographic activities amongst IHO Member States on a regional basis and between regions. At the regional level, the Regional Hydrographic Commissions (RHCs) coordinate hydrographic activity and cooperation. The RHCs are made up of IHO Member States together with other regional States that wish to participate.

When possible, a representative from GEBCO attends the meetings of the RHCs. Further information about the work of these groups and the geographic coverage of the RHCs can be found at the links below.

As an outcome of the Extraordinary International Hydrographic Conference 5, the IHO Inter-Regional Coordinating Committee has established a Crowd-Sourced Bathymetry Working Group (CSBWG).

The working group will examine how best to incorporate, manage and use bathymetric data collected by other than conventional means and develop principles and guidelines to enable the appropriate collection and use of crowd-sourced bathymetry for the benefit of all stakeholders interested in knowing the shape and nature of the seafloor and its depths.

GEBCO's regional mapping projects

When needed, GEBCO will initiate its own regional bathymetric mapping projects, drawing on the expertise and regional knowledge of local experts including GEBCO colleagues and in particular the GEBCO/Nippon Foundation Scholars.

GEBCO/Nippon Foundation Indian Ocean Bathymetric Compilation (IOBC) Project

The aims of this multinational project are to:

  1. assemble, collate, archive and publish all publically-available bathymetric data from all sources within the Indian Ocean
  2. produce a new bathymetric map and grid of the Indian Ocean (north of 60°S) using data from all available sources

The project will be undertaken by a combination of GEBCO/Nippon Foundation Scholars and other GEBCO members, guided by an Editorial Board.

The map and grid will be developed from scientific cruise data obtained in both shallow and deep water, combined with hydrographic survey data in shallow water as required to complete the map area at the highest resolution possible. Find out more from the project’s web site.

Other collaborative projects

European Marine Observation and Data Network (EMODnet) Bathymetry

EMODnet is a project, funded by the European Commission, to bring together marine data into interoperable, continuous and publicly available data sets for complete maritime basins in European waters.

As part of this project, the EMODnet Bathymetry portal provides bathymetry data in the form of Digital Terrain Models (DTM) for selected maritime basins. The DTMs have been produced from collated bathymetric data sets that are integrated into a central DTM. In regions where high resolution DTMs are not available, bathymetry data is taken from the GEBCO 30 arc-second grid to provide a complete bathymetric model for the region.

Through a collaboration with the EMODnet Hydrography team, GEBCO’s global bathymetric grid includes bathymetry data from the DTMs provided through the EMODnet bathymetry portal.

Baltic Sea Bathymetry Database (BSBD)

The Baltic Sea Bathymetry Database is the result of an effort to generate and make available a bathymetric grid for the Baltic Sea region using data from Baltic Sea countries' national hydrographic offices under the umbrella of the Baltic Sea Hydrographic Commission.

The data set can be downloaded from the BSBD web site.

The BSBD data set has be included in the GEBCO_2014 Grid.