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Dominant Leaf Type Change 2015-2018 (raster 20 m), Europe, 3-yearly, Dec. 2020

This metadata refers to the Copernicus High Resolution Layer Forest product Dominant Leaf Type Change (DLTC) 2015-2018. The DLTC raster product provides information on the change between the reference years 2015 and 2018 and consists of 7 thematic classes (unchanged areas with no tree cover / new broadleaved cover / new coniferous cover / loss of broadleaved cover / loss of coniferous cover / unchanged areas with tree cover / potential change among dominant leaf types) at 20m spatial resolution and covers the full of EEA38 area and the United Kingdom. The production of the High Resolution Forest layers was coordinated by the European Environment Agency (EEA) in the frame of the EU Copernicus programme.

The High Resolution Forest product consists of three types of (status) products and additional change products. The status products are available for the 2012, 2015 and 2018 reference years: 1. Tree cover density providing level of tree cover density in a range from 0-100%; 2. Dominant leaf type providing information on the dominant leaf type: broadleaved or coniferous; 3. A Forest type product. The forest type product allows to get as close as possible to the FAO forest definition. In its original (20m) resolution it consists of two products: 1) a dominant leaf type product that has a MMU of 0.5 ha, as well as a 10% tree cover density threshold applied, and 2) a support layer that maps, based on the dominant leaf type product, trees under agricultural use and in urban context (derived from CLC and high resolution imperviousness 2009 data). For the final 100m product trees under agricultural use and urban context from the support layer are removed.

Simple

Date ( Creation )
2020-12-10
Date ( Publication )
2020-12-10
Edition
01.00
Identifier
copernicus_r_3035_20_m_dltc-2015-2018_p_2014-2018_v01_r00
Unique resource identifier
10.2909/11e54513-eaee-407b-8f0a-4f321cbf9974

Point of contact

No information provided.

Point of contact

No information provided.

Point of contact

No information provided.

Point of contact

No information provided.
Maintenance and update frequency
Continual
GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Land cover
Keywords
Continents, countries, sea regions of the world. ( Place )
  • United Kingdom
  • EEA38 (from 2020)
Keywords
GEMET ( Theme )
  • landscape alteration
  • forest management
  • land cover
  • land use
Spatial scope ( Theme )
  • European
EEA topics ( Theme )
  • Land use
Access constraints
Other restrictions
Other constraints
no limitations to public access
Use constraints
Other restrictions
Other constraints

Access to data is based on a principle of full, open and free access as established by the Copernicus data and information policy Regulation (EU) No 1159/2013 of 12 July 2013. This regulation establishes registration and licensing conditions for GMES/Copernicus users.

Free, full and open access to this data set is made on the conditions that:

1. When distributing or communicating Copernicus dedicated data and Copernicus service information to the public, users shall inform the public of the source of that data and information.

2. Users shall make sure not to convey the impression to the public that the user's activities are officially endorsed by the Union.

3. Where that data or information has been adapted or modified, the user shall clearly state this.

4. The data remain the sole property of the European Union. Any information and data produced in the framework of the action shall be the sole property of the European Union. Any communication and publication by the beneficiary shall acknowledge that the data were produced “with funding by the European Union”.

Spatial representation type
Grid
Distance
20  m
Metadata language
en
Character set
UTF8
Topic category
  • Environment
  • Imagery base maps earth cover
Begin date
2014-01-01
End date
2018-10-31
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Unique resource identifier
EPSG:3035
Distribution format
  • GeoTIFF ( 1.0 )

OnLine resource
Download (requires authentication) ( WWW:LINK-1.0-http--link )
OnLine resource
https://image.discomap.eea.europa.eu/arcgis/rest/services/GioLandPublic/HRL_DominantLeafTypeChange_15_18/ImageServer ( ESRI:REST )
OnLine resource
https://image.discomap.eea.europa.eu/arcgis/services/GioLandPublic/HRL_DominantLeafTypeChange_15_18/ImageServer/WMSServer?request=GetCapabilities&service=WMS ( OGC:WMS )
OnLine resource
https://doi.org/10.2909/11e54513-eaee-407b-8f0a-4f321cbf9974 ( DOI )
Hierarchy level
Dataset

Conformance result

Date ( Publication )
2010-12-08
Explanation
See the referenced specification
Statement

The Dominant Leaf Type Change (DLTC) 2015-2018 is a change product based on the 20m Tree Cover Change Mask (TCCM) 2015-2018 considering changes of the leaf type by taking the Dominant Leaf Type (DLT) information of the two reference years 2015 and 2018 into account. The layer has a 1 pixel boundary filter applied in order to mitigate geometric imprecisions between the input layers 2015 and 2018, caused by the different satellite input data characteristics. Change classes are provided with a Minimum Mapping Unit (MMU) of 1 ha. The product covers the whole EEA39 area and is provided in European projection. National products might show a broken MMU due to reprojection.

Quality assurance follows the ISO 9001:2015 standards for Quality Management and comprises of dedicated procedures of quality checks (QA breakpoints) during implementation of the production chain, in order to keep persistent control over the various stages of production, assure fitness-for-purpose of the end-products and that all quality requirements are fulfilled. Priority has been given to the target thematic accuracy to be achieved by each product, as well as to the issues of product consistency (spatial, thematic, temporal) and homogeneity. Quality Assessment: The quality assessment has been performed according to INSPIRE Data Specifications. The data quality elements considered are: (i) Completeness, (ii) Logical Consistency, (iii) positional accuracy, (iv) Thematic Accuracy, (v) Temporal quality and (vi) Usability.

Geometric accuracy (positioning scale): Less than one pixel (20m) according to ortho-rectified satellite image base delivered by ESA.

Thematic target accuracy: 90% producer and user accuracy for change classes.

Final validation results DLTC 1518 at pan-European level: 98.16% overall accuracy with a 95% confidence level applied (no tree cover: 98.47% producer accuracy and 98.67% user accuracy; new broadleaved cover: 71.50% producer accuracy and 92.24% user accuracy; new coniferous cover: 96.78% producer accuracy and 98.77% user accuracy; loss of broadleaved cover: 88.62% producer accuracy and 70.64% user accuracy; loss of coniferous cover: 72.67% producer accuracy and 91.86% user accuracy; unchanged areas with tree cover: 98.02% producer accuracy and 97.51% user accuracy). The class potential change among dominant leaf types has not been assessed.

Thematic accuracy has been assessed using a stratified random sampling approach with 11,695 points (area weighted), visually interpreted using VHR_IMAGE_2018, VHR_IMAGE_2015 and Sentinel-2 time series data, complemented by additional data sources like virtual globes (e.g. Google Earth Pro).

The production process is described and explained in detail in the User Manual Tree-cover/forest and change 2015-2018 available here: https://land.copernicus.eu/user-corner/technical-library/forest-2018-user-manual.pdf.

Source
  • 9723d33f-ac36-49d0-b2c7-80710d377a7d
  • Dominant Leaf Type 2015 (raster 20 m), Europe, 3-yearly, Apr. 2018
  • Dominant Leaf Type 2018 (raster 10 m), Europe, 3-yearly, Sep. 2020
File identifier
11e54513-eaee-407b-8f0a-4f321cbf9974 XML
Metadata language
en
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2023-08-15T14:25:33.84Z
Metadata standard name
ISO 19115/19139
Metadata standard version
1.0
Point of contact
  European Environment Agency
Kongens Nytorv 6 , Copenhagen , K , 1050 , Denmark
 
 

Overviews

overview

Spatial extent

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Keywords

EEA topics
Land use
GEMET
forest management land cover land use landscape alteration
GEMET - INSPIRE themes, version 1.0
Land cover
Spatial scope
European

Provided by

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Associated resources

Not available


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