EMODnet product catalogue
Coastal migration via satellite data (1250k-3M)
Thanks to the public availability of satellite data (optical imagery of ESA Sentinel 2 and NASA Landsat 5, 7 & 8 with pixel resolutions of 10-30 metres and a revisit time of 1 to 2 weeks) and new analytical tools for processing big data (such as the Google Earth Engine), the EMODnet Geology team in collaboration with Deltares and TNO (Geological Survey of the Netherlands) were able to look at shoreline migration in a new way. Scripts for automated detection of the land-water boundary were used to separate land from water in annual image composites for the period 2007-2017. During this process, data points were generated for each part along the European shoreline. These points were then averaged by year and analysed for a decadal period. Visualising pan-European shoreline change means making choices, like defining a stable shoreline for example. A mean rate of 0.5 metre per year was chosen, though this rate depends on the landscape: granite cliffs for example shows less decadal dynamics compared to a sandy barrier island. The spatial resolution of the method, depending on the pixel resolution of the individual satellite images which is about 10 metres, is still limiting. Validations of abovementioned method have shown that the method is less accurate in case of bluffs, cliffs and muddy coasts, and as such further validations will need to take place. EMODnet Geology hopes that by releasing the satellite-based dataset now, coastal experts and other end users will be able to discover and communicate possibilities and limitations of automated methods for the extraction of shoreline position and quantification of annual to decadal change. To help in this process, a companion map showing shoreline migration on the basis of field data and expert is made available, thereby facilitating a first-order comparison.
Simple
- Date (Revision)
- 2022-09-15
- Point of contact
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Organisation name Individual name Electronic mail address Role Geological Survey of the Netherlands (TNO)
Sytze van Heteren
Point of contact
- Keywords
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features
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coastal_migration_2019_1250k_3m
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EMODnet Central Portal
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- Use constraints
- Other restrictions
- Other constraints
- Creative Commons BY-SA 4.0
- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
- Spatial representation type
- Vector
- Denominator
- 1250000
- Denominator
- 3000000
- Language
- English
- Topic category
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- Oceans
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- Begin date
- 2022-09-15
- Unique resource identifier
- ETRS-LCC (3034) [INSPIRE]
- Distribution format
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Name Version ESRI Shapefile
- OnLine resource
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Protocol Linkage Name WWW:LINK
https://emodnet.ec.europa.eu/en/geology EMODnet Geology
WWW:DOWNLOAD
https://www.emodnet-geology.eu/products/wp5/coastline_migration.zip Coastal migration via satellite data.
OGC:WMS
https://drive.emodnet-geology.eu/geoserver/tno/wms? tno:coastal_migration_satellite_1250k_3m
OGC:WFS
https://drive.emodnet-geology.eu/geoserver/tno/wfs? tno:coastal_migration_satellite_1250k_3m
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Explanation
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See referenced specification
- Statement
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Datasets are collected and digitized using GIS software. The resulting line representation was aggregated into point features at respective zoom levels using a Feature Manipulation Workbench (FME) to create and populate the points in terms of underlying category.
Metadata
- File identifier
- bea91d1799427594f4b29454220556fe324af94f XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2025-03-27
- Metadata standard name
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ISO 19115/INSPIRE_TG2/CZ4
- Metadata standard version
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2003/cor.1/2006
- Metadata author
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Organisation name Individual name Electronic mail address Role Geological Survey of the Netherlands (TNO)
Sytze van Heteren
Point of contact
)))
