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==Description==
==Description==


Here you can put a description of the layer
Tidal excursion refers to the average distance a water particle travels between low-water slack tide and high-water slack tide during a tidal cycle. It measures how far a body of water moves back and forth due to tidal currents.
 
This phenomenon is influenced by various factors, including tidal phases, bathymetry and local geography. This is important to take into account when planning activities that will change the bathymetry, such as dredging and sand and gravel extraction. If the area affected is larger than the tidal excursion, there are high chances that stratification will occur, limiting gas exchanges with the atmosphere which can cause eutrophication.   
 
In some locations, such as in the English Channel the tidal excursion can be around 18 kilometers. The tidal excursion length is site-specific and depends on the characteristics of the location. 


==MSP Challenge==
==MSP Challenge==


Here you can add information about how the layer is implemented or used in the MSP Challenge
In the MSP Challenge, the tidal excursion layer is not editable, but allows players to get insight into water movement and adjust their sand and gravel extraction strategies accordingly.
   
   
=North Sea=
=North Sea=
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==Metadata==
==Metadata==
===Data Source===
===Data Source===
This layer was provided by partners from the ORELSE project.


===Original Title===
===Original Title===
Tidal Excursion Map - Southern North Sea - April 2025


===Description===
===Description===
Enter the description of the North Sea dataset here.
This dataset represents the spatial distribution of tidal excursion (in kilometers) on the Southern North Sea.


===Creation Date===
===Creation Date===
yyyy-mm-dd North Sea
04/2025


===Methodology===
===Methodology===
Enter here how the layer was prepared to be integrated into the MSP Challenge North Sea Edition.
The original file type was NetCDF.
 
# Extracted lat, lon, critical_depth variables into csv through python script.
# Csv to points, reprojected and cleaned data (empty points far outside study area)
# Preformed TIN interpolation
# Clipped raster to mask based on the extent of original points
# Reclassified by table


=Baltic Sea=
=Baltic Sea=
Not applicable.


==Types==
This layer is not available in the Baltic Sea Edition.
Baltic Sea types here
 
==Metadata==
===Data Source===
Enter data source for Baltic Sea here.
 
===Original Title===
Enter name of the layer at the Baltic Sea source.
 
===Description===
Enter the description of the Baltic Sea dataset here.
 
===Creation Date===
yyyy-mm-dd Baltic Sea
 
===Methodology===
Enter here how the layer was prepared to be integrated into the MSP Challenge Baltic Sea Edition.
 
=Clyde Marine Region=
=Clyde Marine Region=
Not applicable.


==Types==
This layer is not available in the Clyde Marine Region Edition.
Clyde Marine Region types here
 
==Metadata==
===Data Source===
Enter data source for Clyde Marine Region here.
 
===Original Title===
Enter name of the layer at the Clyde Marine Region source.
 
===Description===
Enter the description of the Clyde Marine Region dataset here.
 
===Creation Date===
yyyy-mm-dd Clyde Marine Region
 
===Methodology===
Enter here how the layer was prepared to be integrated into the MSP Challenge Clyde Marine Region Edition.
 
=Adriatic Sea=
=Adriatic Sea=
Not applicable.


==Types==
This layer is not available in the Adriatic Sea Edition.
Adriatic Sea types here
=Eastern Mediterranean Sea =
 
Not applicable.
==Metadata==
===Data Source===
Enter data source for Adriatic Sea here.
 
===Original Title===
Enter name of the layer at the Adriatic Sea source.
 
===Description===
Enter the description of the Adriatic Sea dataset here.
 
===Creation Date===
yyyy-mm-dd Adriatic Sea
 
===Methodology===
Enter here how the layer was prepared to be integrated into the MSP Challenge Adriatic Sea Edition.


<headertabs />
This layer is not present in the Eastern Mediterranean Sea.<headertabs />
[[Category:Environmental conditions]]

Latest revision as of 13:11, 26 August 2025

Tidal Excursion
NS Tidal Excursion OR.png
Layer Info
Category Governance
Sub-category Environmental Conditions
Editable No

Description

Tidal excursion refers to the average distance a water particle travels between low-water slack tide and high-water slack tide during a tidal cycle. It measures how far a body of water moves back and forth due to tidal currents.

This phenomenon is influenced by various factors, including tidal phases, bathymetry and local geography. This is important to take into account when planning activities that will change the bathymetry, such as dredging and sand and gravel extraction. If the area affected is larger than the tidal excursion, there are high chances that stratification will occur, limiting gas exchanges with the atmosphere which can cause eutrophication.

In some locations, such as in the English Channel the tidal excursion can be around 18 kilometers. The tidal excursion length is site-specific and depends on the characteristics of the location.

MSP Challenge

In the MSP Challenge, the tidal excursion layer is not editable, but allows players to get insight into water movement and adjust their sand and gravel extraction strategies accordingly.

Sand Extraction Edition

Types

  • 0 - 4 km
  • 4 - 6 km
  • 6 - 8 km
  • 8 - 9 km
  • 9 - 10 km
  • 10 - 12 km
  • 12 - 18 km

Metadata

Data Source

This layer was provided by partners from the ORELSE project.

Original Title

Tidal Excursion Map - Southern North Sea - April 2025

Description

This dataset represents the spatial distribution of tidal excursion (in kilometers) on the Southern North Sea.

Creation Date

04/2025

Methodology

The original file type was NetCDF.

  1. Extracted lat, lon, critical_depth variables into csv through python script.
  2. Csv to points, reprojected and cleaned data (empty points far outside study area)
  3. Preformed TIN interpolation
  4. Clipped raster to mask based on the extent of original points
  5. Reclassified by table

Not applicable.

This layer is not available in the Baltic Sea Edition.

Not applicable.

This layer is not available in the Clyde Marine Region Edition.

Not applicable.

This layer is not available in the Adriatic Sea Edition.

Not applicable.

This layer is not present in the Eastern Mediterranean Sea.

Retrieved from "https://knowledge.mspchallenge.info/index.php?title=Tidal_Excursion&oldid=6350"
This page was last edited on 26 August 2025, at 13:11. Content is available under GPLv3 unless otherwise noted.