Danish Hydrographic Office

The Danish Hydrographic Office is responsible for the sale, production and development of nautical data, charts, publications and other maritime products with the aim to support safety at sea in Danish and Greenlandic waters.

In addition, the Danish Hydrographic Office is also responsible for compiling spatial, authoritative information for national waters with the aim of supporting both administration at sea and the commercial and technological development of The Blue Denmark.

The responsibility for nautical chart products, nautical publications and other maritime products in Faroese waters is from 1 January 2020 taken over by the Faroe Islands. Read more here (site under construction):


  • That depth information is collected and quality assured
  • That nautical data, charts and other maritime products are maintained and developed for the sake of safety at sea
  • That reported navigational changes within national waters are quality assured and made available to mariners in nautical chart corrections and updated nautical charts and publications.
  • That marine data is compiled and made available for use in maritime and marine environment
  • To continuously follow the latest knowledge and development in the maritime and marine data environment.



  • Collection and processing of depth information in Danish and Greenlandic waters
  • Organization, quality assurance and storage of existing and newly collected depth information
  • Production and updating of electronic navigational charts (ENC), paper charts, harbour plans and nautical publications for Denmark and Greenland
  • Publication of changes from Notice to Mariners through chart corrections, port pilots and other nautical publications
  • Manage the Danish Hydrographic Offices sale of charts and other maritime products, as well as handling trade, distribution and cooperation agreements
  • Development of our data and processes for the purpose of streamlining chart production
  • Responsibility for the marine spatial data infrastructure (MSDI) in Denmark, including responsibility and daily operation of the Danish MSDI (www.msdi.dk)
  • Coordination of the Danish Geodata Agency’s (DGA) task in the marine area including safeguarding the DGA’s interests in the Arctic marine area and participation in international work such as IMO, IHO etc.

Head of Office: Elizabeth Hagemann and Niels Tvilling Larsen



Contact us

Danish Hydrographic Office