Sentinel-2 satellite tiles provide Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) values, which measure the fraction of radiation absorbed by green canopy parts. The product is derived from a radiative transfer model and approximates daily integrated black-sky FAPAR values. Data was last updated by FEDEO in December 2021.
Use Cases
- Modeling daily primary productivity based on daily integrated FAPAR values.
- Analyzing canopy health and structure based on FAPAR's dependence on canopy structure and optical properties.
- Studying vegetation under different illumination conditions based on FAPAR's sensitivity to illumination.
- Inputting into agricultural yield forecasts based on photosynthetically active radiation absorption.
Strengths
- Product definition corresponds to daily integrated FAPAR values, a key input for productivity models.
- FAPAR values are derived from a radiative transfer model computed instantaneously.
- Data is sourced from the Sentinel-2 satellite platform, a known Earth observation source.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Last updated 2021-12-31 23:59:00; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
Provenance
- Source
- FEDEO via nasa_earthdata.
- Collection Method
- Derived from Sentinel-2 satellite imagery using a radiative transfer model.
- Freshness
- Last updated 2021-12-31 23:59:00.