# Source: MODIS Gross Primary Productivity 8-Day Gap-Filled
# Type: cog
# Catalog: STACConnector
# Generated by: folia catalog import
# Generated at: 2026-02-08T00:48:33.372177+00:00
#
# Do not edit manually - will be overwritten on next import.

source:
  id: planetary-computer-modis-17A2HGF-061
  name: MODIS Gross Primary Productivity 8-Day Gap-Filled
  type: cog
  url: https://planetarycomputer.microsoft.com/api/stac/v1/collections/modis-17A2HGF-061
  description: The Version 6.1 Gross Primary Productivity (GPP) product is a cumulative
    8-day composite of values with 500 meter (m) pixel size based on the radiation
    use efficiency concept that can be potentially used as inputs to data models to
    calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry
    of vegetation. The Moderate Resolution Imaging Spectroradiometer (MODIS) data
    product includes information about GPP and Net Photosynthesis (PSN). The PSN band
    values are the GPP less the Maintenance Respiration (MR). The data product also
    contains a PSN Quality Control (QC) layer. The quality layer contains quality
    information for both the GPP and the PSN. This product will be generated at the
    end of each year when the entire yearly 8-day 15A2H is available. Hence, the gap-filled
    A2HGF is the improved 17, which has cleaned the poor-quality inputs from 8-day
    Leaf Area Index and Fraction of Photosynthetically Active Radiation (FPAR/LAI)
    based on the Quality Control (QC) label for every pixel. If any LAI/FPAR pixel
    did not meet the quality screening criteria, its value is determined through linear
    interpolation. However, users cannot get this product in near-real time because
    it will be generated only at the end of a given year.
  provider: NASA LP DAAC at the USGS EROS Center
  license: proprietary
  metadata:
    stac: true
    stac_api: true
    connector_id: planetary-computer
    tags:
    - NASA
    - MODIS
    - Satellite
    - Vegetation
    - Global
    - MOD17A2HGF
    - MYD17A2HGF
    dataset:
      tier: 1
      thematic_group: Vegetation & Agriculture
      format: cog
      crs: EPSG:4326
      temporal:
        range: 2000-02-18/..
        frequency: annual
        type: time_series
        default_range: latest
      quality:
        coverage: global
      layout:
        type: tiled
      stac_collection_id: modis-17A2HGF-061
      homepage: https://planetarycomputer.microsoft.com/api/stac/v1/collections/modis-17A2HGF-061