Bar diagram of effective mesh density values per country for FG-B2 in 2009

This website has limited functionality with javascript off. Please make sure javascript is enabled in your browser.

Created : Sep 23, 2011 Published : Sep 23, 2011 Last modified : Nov 29, 2012 11:36 AM

Effective mesh density values by country for Fragmentation Geometry FG-B2 in 2009. Fragmentation geometry has been created from input data (TeleAtlas roads/rails, CLC urban classes, mountain areas / mountain ridges based on Nordregio and WorldClim data and rivers/lakes based on Catchment Characterisation and Modelling (CCM) v.2 database and CLC database) and landscape fragmentation metrics (Jaeger 2000) has been calculated.

This is the latest published version. .

http://www.eea.europa.eu/data-and-maps/figures/bar-diagram-of-effective-mesh/bar-diagram-of-effective-mesh/image_original

Download

Documents

Microsoft Excel spreadsheet
30.00 KB

Figure 2.10.xls

Metadata

Last upload:

20 Sep 2011

Dynamic

Temporal coverage:

2009

Tags:

Geographical coverage:

[+] Show Map

Austria Belgium Bulgaria Cyprus Czech Republic Denmark Estonia Finland France Germany Greece Hungary Ireland Italy Latvia Liechtenstein Lithuania Luxembourg Malta Netherlands Norway Poland Portugal Romania Slovakia Slovenia Spain Sweden Switzerland United Kingdom

Units:

number of meshes per 1000 km²

Rights:

EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: Swiss Federal Office for the Environment, Concordia University - Geography, Planning and Environment, European Environment Agency (EEA).

Owners:

Swiss Federal Office for the Environment

Concordia University - Geography, Planning and Environment

European Environment Agency (EEA)

Permalink to this version: 676c3d4a42dc857d0c4b435ee9a26f66
Permalink to latest version: SYA24G7Q5Z

Figure type:

Graph

Additional information

The objective of this task is calculate “effective mesh size” as indicator of landscape fragmentation. Effective mesh size (Meff) is proportional to the probability of two points chosen randomly in region being connected. This probability is then converted into the size of a patch – the effective mesh size. The unit of Meff is that of area (e.g. ha). This area corresponds to the size of “meshes” of regular network that has the same degree of fragmentation and it can be compared with the values of Meff from other regions. The smaller the effective mesh size, the more fragmented the landscape.