EO4SD forest management

Tree Canopy Density (TCD) and Change

The Tree Canopy Cover Density (TCD) product is directly derived from high resolution (HR) satellite data and provides information on the proportional canopy coverage per satellite pixel in a range of 0 to 100%. When the TCD assessment is based on the Copernicus Sentinel-2 satellite imagery then the information can be provided in a 10m by 10 m resolution on a regular basis in a spatially explicit wall-to-wall representation.

The TCD product is a key input/ precursor for deriving forest maps following a specific forest definition, e.g. FAO definition, national definition. By applying geo-spatial operations with key parameters of forest definitions, like minimum area, minimum width and minimum canopy cover density, very accurate forest area maps can be achieved.

The corresponding Tree Canopy Cover Density Change product is derived by combining the Tree Canopy Densities of two or more points in time into a Tree Canopy Cover Density Change Map. A decrease of  Tree Canopy Cover Density within the forest area can be considered as a proxy for forest degradation.

The Tree Canopy Cover Density product can be used as an input for:

  • Assessment of Activity Data for REDD+.
  • Analysis of Degradation and Deforestation.
  • Sustainable Forest Management (SFM).
  • Forest Landscape. Restoration (FLR).
  • Identification of High Carbon Stock (HCS) forests.
  • Forest management/ planning.
  • Input variable to spatially explicit modelling of forest biomass and change.

PRODUCT SPECIFICATIONS

CONTENT

  • Detailed mapping of tree canopy density (in percent) over a certain area using discrete classess ranging from 1 to 100%.
  • Changes can be mapped between two or more points in time, showing increase and decrease of tree canopy density (in percent) over a certain area using discrete classes ranging from 1 to 100%.

GEOGRAPHICAL COVERAGE

Regional, National, Sub-national and Local.

TEMPORAL COVERAGE & FREQUENCY

Historical data and/or specific dates; Continuous update is possible (e.g. every 12 months, 5 years),  depending on availability of satellite data.

EO DATA AND SPATIAL RESOLUTION

High Resolution (HR) satellite data, e.g. Sentinel-2 with 10 m resolution, historic Landsat data with 30 m resolution.

ACCURACY

Overall thematic accuracy: > 85 – 90%. Positional accuracy: < 1 pixel of source imagery

PRODUCT DELIVERY

AVAILABLE FORMATS

  • Geodata in GeoTIFF, ASCIL or similar, accompanied with metadata (INSPIRE or ISO)
  • As cartographic products in .pdf, .png or similar

DATA ACCESS OPTIONS

  • USB, Hard disc.
  • Download from a dedicated password protected ftp server or cloud platform.
  • Data can be viewed online through a dedicated password protected web portal (OGC conform). The web potal can be customized to include various online analysis options, time series plots, statistical plots and to integrate user defined datasets.

SUPPORT AVAILABLE

  • Quality Management Systems are applied to cover non-conformance issues, timely corrective actions, and supporting services related to reliability, flexibility and timely delivery of services. All quality relevant information and quality checks are documented and cover the categories:
    • Compliancy of output with user requirements
    • Completeness
    • Thematic accuracy
    • Thematic completeness
    • Positional accuracy
    • Product utility
  • Tailored training can be provided on product use and integration for further geospatial analysis