Geodaten und Metadaten für Geodatendienste im Bereich Gewässernetz anpassen

If you have identified changes to a watercourse or watercourse section, you can submit the associated geodata and metadata to the NLWKN. Missing information can be obtained online from the Lower Saxony environmental map online. This display is free of charge.

If you notice that the digital watercourse network does not correspond to the local conditions, you can report this. This takes the form of an adjustment, addition or deletion of data (geodata or metadata) for a body of water at the Lower Saxony State Agency for Water Management, Coastal Defence and Nature Conservation. This data is then updated in the digital watercourse network. The watercourse network is a database of watercourses within the state of Lower Saxony. Please make sure that you have all the information required for the entry. This includes the following information Coordinates of the watercourse section, name of the watercourse, watercourse identification number, connection to the digital watercourse network and, if applicable, the location sketch and query about regular draining of the watercourse. Missing information can be found online in the Lower Saxony environmental map. Your advertisement is free of charge.

• Location sketch of the watercourse (optional)
• Power of attorney (optional)

• In principle, geodata must have a direct or indirect reference to a specific location or geographical area.
• As a rule, they must fulfill the following requirements:

1. relate to the state of Lower Saxony,

2. be available in electronic form

3. be made available and

4. fit the topic of water bodies.

• If you have geodata or metadata for geodata services in the water network area, you can report this to the Lower Saxony Water Management, Coastal Defence and Nature Conservation Agency.
• You can also apply for this information in writing; the necessary documents can be found on the website of the Lower Saxony Water Management, Coastal Defence and Nature Conservation Agency.
• All current and relevant information is available on the Lower Saxony Environmental Map website.
• An online service is also available for this purpose. After submitting your application online, you will receive an automatic confirmation of receipt.
• The competent authority will check whether the requirements for the provision of geodata and metadata for geodata services in the water network sector are met.
• You will receive a notification of rejection or, if applicable, a confirmation of receipt or notification from the authority.

There is no statutory processing period. Processing can take up to several months.

There is no deadline.

• Information on the inclusion of geodata and metadata for geodata services in the water network area
• Geodata and metadata are maintained in the Lower Saxony watercourse network
• Information on changes to water bodies and water body sections can be displayed
• Required information is
  • Type of information: adjustment, addition or deletion
  • Coordinates of the watercourse section
  • Watercourse name
  • Water body identification number
  • Connection to the digital watercourse network
  • If applicable, location sketch and query about regular dry fall
• Information is free of charge

Responsible: Lower Saxony State Agency for Water Management, Coastal Defence and Nature Conservation