Corine Land Cover

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Introduction

Corine 2018: Data in windPRO. Wind farm west of Hamburg, Germany.
Coverage of the Corine 2018 dataset.

Corine land cover products in windPRO are data-layers from years 2006, 2012 and 2018. National centers for land-cover analysis are producing the datasets - with the majority of the national authorities using visual interpretation of high-resolution satellite imagery. In some countries other semi-automatic methods are applied using national in-situ data, satellite imagery and GIS-tools. The dataset has a legend with 44 classes of land-cover. These have been mapped in to roughness lengths for use in WindPRO. It is produced and delivered by the European Environment Agency (EEA) - http://www.eea.europa.eu/ through the Copernicus Land Monitoring Service.

Dataset Overview

  • Spatial Coverage: This dataset covers most parts of Europe, with the recent version coverage of 39 countries.
  • Resolution: 100 m.
  • Data Type: Land Cover / Land Use Mapping - with roughness length mapping by EMD (lookup table)
  • Versions:
    • 2018: Representing a time consistency 2017 - 2018
    • 2012: Representing a time consistency 2011 - 2012
    • 2006: Representing a time consistency 2006 +/- 1 year
  • Geometic Accuracy (Satellite Data):
    • 2018: <10m (based on Sentinel-2 imagery)
    • 2012: <25m
    • 2006: <25m
  • Thematic Accuracy: >85%

Availability from within WindPRO

The data are available directly from within windPRO. The data can be accessed from the online-services in the following objects:

  • Area Object (with purpose set to 'roughness map based on closed lines')
  • Line Object (with purpose set to 'roughness lines')

Please note: Data stored in the 'Area Object' can be (fairly) easily edited by changing the legend / lookup-table definitions - as this data-type preserves the original metadata (land cover groups). This is not possible when loading roughness-lines data directly in the line object.

Usage Notes

  1. Always make a manual evaluation and adjustment of the roughness lengths obtained from this dataset; they are based on a simplified lookup table (as seen below) and you may find that any in-situ values will differ from the model values obtained from the lookup table.
  2. If you want to modify the values obtained: Load the data into a windPRO area object.

Legends

The Corine Land Cover Datasets (2006, 2012 and 2018) datasets have 44 different categories that EMD has mapped in to a suggested roughness length, z0. The values from the column 'EMD Roughness Length' in the lookup-table (LUT) below are used as defaults when the data is loaded into the area-object or line-object. The comparison to the DTU default LUT-values are shown as an additional column. This is done to highlight that the lookup-table values are uncertain, and likely to be dependent of the geographical region where they are applied and also the expert making the estimate. As such, the used values should be validated, e.g. using local mast data (the wind profile) and by cross-predictions between masts.

Table: Corine Land Cover (2006, 2012, 2018) with Roughness Classification Data by EMD (default) and DTU.
No Land Cover Type EMD Roughness
Length
DTU Roughness
Length
1 Continuous urban fabric 1.1.1 z0=0.50000 z0=1.00000
2 Discontinuous urban fabric 1.1.2 z0=0.40000 z0=0.80000
3 Industrial or commercial units 1.2.1 z0=0.70000 z0=0.70000
4 Road and rail networks and associated land 1.2.2 z0=0.10000 z0=0.10000
5 Port areas 1.2.3 z0=0.50000 z0=0.50000
6 Airports 1.2.6 z0=0.03000 z0=0.01000
7 Mineral extraction sites 1.3.1 z0=0.10000 z0=0.05000
8 Dump sites 1.3.2 z0=0.10000 z0=0.05000
9 Construction sites 1.3.3 z0=0.30000 z0=0.30000
10 Green urban areas 1.4.1 z0=0.40000 z0=0.80000
11 Sport and leisure facilities 1.4.2 z0=0.50000 z0=0.20000
12 Non-irrigated arable land 2.1.1 z0=0.05600 z0=0.05000
13 Permanently irrigated land 2.1.2 z0=0.05600 z0=0.03000
14 Rice fields 2.1.3 z0=0.01840 z0=0.03000
15 Vineyards 2.2.1 z0=0.30000 z0=0.30000
16 Fruit trees and berry plantations 2.2.2 z0=0.40000 z0=0.40000
17 Olive groves 2.2.3 z0=0.40000 z0=0.40000
18 Pastures 2.3.1 z0=0.03600 z0=0.03000
19 Annual crops associated with permanent crops 2.4.1 z0=0.05600 z0=0.10000
20 Complex cultivation patterns 2.4.2 z0=0.05600 z0=0.15000
21 Land principally occupied by agriculture, with significant areas of natural vegetation 2.4.3 z0=0.05600 z0=0.20000
22 Agro-forestry areas 2.4.4 z0=0.50000 z0=0.50000
23 Broad-leaved forest 3.1.1 z0=0.50000 z0=1.00000
24 Coniferous forest 3.1.2 z0=0.50000 z0=1.20000
25 Mixed forest 3.1.3 z0=0.50000 z0=1.10000
26 Natural grassland 3.2.1 z0=0.05600 z0=0.03000
27 Moors and heathland 3.2.2 z0=0.06000 z0=0.05000
28 Sclerophyllous vegetation 3.2.3 z0=0.05600 z0=0.07000
29 Transitional woodland-scrub 3.2.4 z0=0.40000 z0=0.40000
30 Beaches, dunes, and sand plains 3.3.1 z0=0.01000 z0=0.00300
31 Bare rock 3.3.2 z0=0.05000 z0=0.05000
32 Sparsely vegetated areas 3.3.3 z0=0.20000 z0=0.03000
33 Burnt areas 3.3.4 z0=0.20000 z0=0.20000
34 Glaciers and perpetual snow 3.3.5 z0=0.00500[1] z0=0.00500
35 Inland marshes 4.1.1 z0=0.05000 z0=0.05000
36 Peat bogs 4.1.2 z0=0.01840 z0=0.03000
37 Salt marshes 4.2.1 z0=0.03480 z0=0.02000
38 Salines 4.2.2 z0=0.03000 z0=0.00500
39 Intertidal flats 4.2.3 z0=0.00050 z0=0.00000
40 River 5.1.1 z0=0.00000 z0=0.00000
41 Lake 5.1.2 z0=0.00000 z0=0.00000
42 Coastal lagoons 5.2.1 z0=0.00000 z0=0.00000
43 Estuaries 5.2.2 z0=0.00000 z0=0.00000
44 Sea and ocean 5.2.3 z0=0.00000 z0=0.00000
45 NO DATA z0=-1.00000 N/A

License and Acknowledgement

European Environment Agency (EEA) standard re-use policy applies: 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: European Environment Agency (EEA).

The following parties are acknowledged:

  • European Environment Agency (EEA) is acknowledged for the development and release of this free and open dataset.
  • Integration of this dataset into EMD services was co-supported through the InnoWind project (www.innowind.dk) which is co-funded by the Danish Innovation Fund

External Links

  1. Corine 2018: https://land.copernicus.eu/pan-european/corine-land-cover/clc2018
  2. Corine 2012: https://land.copernicus.eu/pan-european/corine-land-cover/clc-2012
  3. Corine 2006: http://www.eea.europa.eu/data-and-maps/data/corine-land-cover-2006-raster
  4. InnoWind project - http://www.innowind.dk

Footnotes

  1. Before 2020-02-14, the z0 for class 3.3.5 (Glaciers and perpetual snow) was set to 0.2000. After this date it was revised to 0.005.