MODIS Terra Net Primary Production Gap-Filled Yearly L4 Global 500m 2003-11
type: Dataset
keyword: MODIS
keyword: Terra
keyword: NASA
keyword: Satellite
keyword: Global
keyword: Vegetation
keyword: NPP
keyword: GPP
keyword: Net Primary Productivity
keyword: Carbon
keyword: 500m
keyword: MOD17A3HGF
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description: The MODIS Terra MOD17A3HGF Version 6.1 product provides annual estimates of Gross Primary Productivity (GPP) and Net Primary Productivity (NPP) at 500 m spatial resolution. The dataset is generated by summing all 8-day GPP and Net Photosynthesis (PSN) values from the MOD17A2H product over a given year, where PSN is calculated as GPP minus Maintenance Respiration (MR). The gap-filled product is produced at the end of each year once the complete annual MOD15A2H LAI/FPAR dataset becomes available. Poor-quality LAI/FPAR inputs are identified using quality control flags and replaced through linear interpolation to improve data consistency. Because of this processing approach, the dataset is not available in near-real time and is released only after the full yearly dataset has been completed.
temporal: PeriodOfTime
  start date: 2003-11-01T00:00:00.000Z
  end date: 2003-11-30T23:59:59.999Z
license: other