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Fragmentation status and trends

GIS Map Application Published 13 Dec 2019 Last modified 13 Dec 2019
1 min read
This web map application uses the new version of the Effective Mesh Density (seff) 2016 dataset with improved input data, for the years 2009, 2012 and 2015. This new dataset uses the Copernicus Imperviousness and the TomTom TeleAtlas data sets as fragmenting geometries. The application shows the change in effective mesh density (seff), i.e. the number of landscape elements between 2009 and 2012 and between 2012 and 2015.

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The Effective Mesh Density (seff) is a measure of the degree to which movement between different parts of the landscape is interrupted by a Fragmentation Geometry (FG). FGs are defined as the presence of impervious surfaces and traffic infrastructure, including medium sized roads. The more FGs fragment the landscape, the higher the effective mesh density hence the higher the fragmentation. The geographic coverage of the dataset is EEA39.

https://www.eea.europa.eu/about-us/countries-and-eionet/intro

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Based on data

Copernicus Land Monitoring Service - High Resolution Layers - Imperviousness The high resolution imperviousness products capture the percentage and change of soil sealing. Built-up areas are characterized by the substitution of the original (semi-) natural land cover or water surface with an artificial, often impervious cover. These artificial surfaces are usually maintained over long periods of time. A series of high resolution imperviousness datasets (for the 2006, 2009, 2012 and 2015 reference years) with all artificially sealed areas was produced using automatic derivation based on calibrated Normalized Difference Vegetation Index (NDVI). This series of imperviousness layers constitutes the main status layers. They are per-pixel estimates of impermeable cover of soil (soil sealing) and are mapped as the degree of imperviousness (0-100%). Imperviousness change layers were produced as a difference between the reference years (2006-2009, 2009-2012, 2012-2015 and additionally 2006-2012, to fully match the CORINE Land Cover production cycle) and are presented 1) as degree of imperviousness change (-100% -- +100%), in 20m and 100m pixel size, and 2) a classified (categorical) 20m change product.
Copernicus aggregated Imperviousness change information 2009-2012 Copernicus aggregated Imperviousness change information 2009-2012 for EEA Indicator on Imperviousness & Imperviousness change
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Imperviousness change 2009-2012 Mapping degree of change over time -100 % to +100 %

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For references, please go to https://www.eea.europa.eu/data-and-maps/explore-interactive-maps/fragmentation-status-and-trends or scan the QR code.

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Engineered by: EEA Web Team

Software updated on 29 June 2020 21:53 from version 20.6.23

Software version: EEA Plone KGS 20.6.27

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