Vineyard's Leaf Area / Photosynthesis Service – Very High Resolution

The Vineyard's Leaf Area / Photosynthesis Service provides information on the leaf area and photosynthesis status of vineyard fields for a user-selected period. Two products are delivered through this EO service: Leaf Area and Photosynthesis. For each product, one EO index has been selected as the most suitable to provide information on the corresponding variable. The Leaf Area Index (LAI) is used to provide information on leaf area, while the Fraction of Absorbed Photosynthetically Active Radiation (fAPAR) is used to provide information on photosynthesis. 

This EO service can provide leaf area and photosynthesis products at both High Resolution (HR) and Very High Resolution (VHR). The system selects the best input data from the available options based on the user’s preferences. For the VHR option, both LAI and fAPAR products can be generated using either Satellogic or WorldView-2 images.

This service is part of the set of Earth Observation (EO) services developed in order to illustrate, test, validate and demonstrate the LEONSEGS capabilities. The defined use cases are implemented and tested in two Areas of Interest (AoIs), located in Spain and Austria. This service is only provided for the Spanish use case, focused on vineyard monitoring.

This record provides examples of the outputs produced by the LEONSEGS system in response to a user requesting the Vineyard’s Leaf Area Status service at VHR level.

Outputs:
• The Leaf Area Index (LAI), used to provide information on leaf area.
• The Fraction of Absorbed Photosynthetically Active Radiation (fAPAR), used to provide the photosynthesis.

For each EO index product, the following files are provided:
      - GeoTIFF raster containing the original index values
      - Categorized GeoTIFF raster
      - RGB visualization GeoTIFF
      - PNG legend associated with the RGB visualization
      - Raster footprint geometry (.wkt)
      - ISO 19115/19139 metadata (.xml)
      - STAC metadata (.geojson)

The categorized values have been specifically adjusted for vineyard crops according to crop phenology; therefore, these values are not applicable to other crop types.