Territorial Waters
Layer Territorial Waters.png
Layer Info
Category Management
Subcategory Governance
Editable No
Data Type Lines
Types or Values
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Description

MSP Challenge

Here you can add information about how the layer is implemented or used in the MSP Challenge

IN THIS TAB EXTENDED CONTENT IS PLACED

ON THIS TAB VISUAL CONTENT IS PLACED

Data Source

This layer is a combination of 2 sources:

  • Flanders Marine Institute (2016). Maritime Boundaries Geodatabase: Territorial Seas (12NM), version 1. Available online at https://www.marineregions.org/. https://doi.org/10.14284/243
  • HELCOM (2019)

Original Title

Flanders Marine Institute (2016): Territorial Seas (12NM)

HELCOM (2019): Territorial waters

Description

Flanders Marine Institute (2016): "Territorial Seas from the VLIZ Maritime Boundaries Geodatabase. Territorial seas are a belt of coastal waters extending at most 12 nautical miles (22.2 km; 13.8 mi) from the baseline (usually the mean low-water mark) of a coastal state." Retrieved from marine regions on 2021-07-06.

HELCOM (2019): "Borders of territorial waters (12 nautical miles from baseline) in the Baltic Sea. It is based on a dataset by the European Environment Agency (https://www.eea.europa.eu/data-and-maps/data/maritime-boundaries). The Russian borders and some small segments are based in OpenStreetMap. See the attribute table for details. The Swedish territorial waters file was edited in November 2019. The source was the Swedish Maritime Administration (https://www.sjofartsverket.se/sv/Maritima-Tjanster/Havsgranser/)". Retrieved from HELCOM on 2021-07-06.

Creation Date

  • Flanders Marine Institute (2016): 2016-10-21
  • HELCOM (2019): 2017-01-01

Methodology

The layer from Flanders Marine Institute (2016) was clipped to the extend of the Baltic Sea and Kattegat, (as defined by IHO, retrieved on 2017-05-22). Geometry errors and duplicates were fixed, and the geometry was simplified to implement the layer in the MSP Challenge. The layer was updated later on 2020-11-30 using the new version of HELCOM from November 2019.

This page was last edited on 20 July 2021, at 08:42. Content is available under GPLv3 unless otherwise noted.