Survey applications

Applications for a maritime bathymetric survey should be sent by e-mail to Danish Geodata Agency (GST):  

The applications must be received at GST 3 weeks prior to the planned start of the survey.

Please note that GST survey permissions do not cover geotechnical surveys. This is not the field of responsibility for GST.


When you seek permission for a maritime bathymetric survey your application must contain the following information:

Applicant: Name, address, company/department, postal code, country, e-mail and telephone number.

Commissioner of relevant survey: Company/department, address, contact person, postal code, country, e-mail and telephone number. 

Location of survey: A map covering the exact survey area should be attached to the application. Furthermore geographical coordinates of the survey area must be given (Degrees, minutes and decimal minutes – WGS84)

Purpose of the survey: State the purpose of the survey

Time of the survey: When is it planned to begin and expected to end?

Vessel information: State which kind of vessel is intended for use, with information on each vessel’s name, nationality, call sign, IMO number, MMSI number and ownership.

Survey equipment: State the type of survey equipment that will be used for the survey.

Declarations that:

  • The survey may be inspected and supervised by GST.
  • The survey results will not be disclosed to anyone other than the person who has ordered the work to be done. If the outcome includes supply material or similar, it must be signed and certified to assure that it must not be disclosed to unauthorized persons, but may only be used in connection with the stated operation and returned to the owner after use.
  • After termination of the survey, the survey data is sent to GST, and GST is free to use the received measurements and information for nautical charts and nautical publications.
  • If radio frequencies are used in the actual survey – permissions for the use of these frequencies have been obtained by relevant authorities.