Fraction Of Absorbed Par (Fapar) Measurement Instruments

Measurements > Land > Albedo and reflectance > Fraction of Absorbed PAR (FAPAR)
Measurement Definition: Fraction of PAR absorbed by vegetation (land or marine) for photosynthesis processes (generally around the “red”) - Physical unit [ % ], Accuracy unit [ % ]

Thematic Links
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
AVHRR/3OperationalMeasurements of land and sea surface temperature, cloud cover, snow and ice cover, soil moisture and vegetation indices. Data also used for volcanic eruption monitoring.Multi-purpose imaging Vis/IR radiometer
AWiFSOperationalVegetation and crop monitoring, resource assessment (regional scale), forest mapping, land cover/ land use mapping, and change detection.Multi-purpose imaging Vis/IR radiometer
HSI-2 (HJ-2A)OperationalHyperspectral measurements for environment and disaster management operations.Multi-purpose imaging Vis/IR radiometer
LISS-III (Resourcesat)OperationalData used for vegetation type assessment, resource assessment, crop stress detection, crop production forecasting, forestry, land use and land cover change.High resolution optical imager
MISROperationalMeasurements of global surface albedo, aerosol and vegetation properties. Also provides multi-angle bidirectional data (1% angle-to-angle accuracy) for cloud cover and reflectances at the surface and aerosol opacities. Global and local modes.n/a
MODISOperationalData on biological and physical processes on the surface of the Earth and in the lower atmosphere, and on global dynamics. Surface temperatures of land and ocean, chlorophyll fluorescence, land cover measurements, cloud cover (day and night).n/a
MSI (Sentinel-2)OperationalOptical high spatial resolution imagery over land and coastal areas for Copernicus operational services.High resolution optical imager
OLCIOperationalMarine and land services.n/a
OLIOperationalMeasures surface radiance, land cover state, and change (e.g., vegetation type). Used as multi-purpose imagery for land applications.High resolution optical imager
OLI-2OperationalMeasures surface radiance, land cover state, and change (e.g., vegetation type). Used as multi-purpose imagery for land applications.High resolution optical imager
SGLIOperational
+/-0
Medium resolution multi-spectral imaging of land, ocean and atmosphere. SGLI-VNR is an optical sensor capable of multi-channel nadir observation at wavelengths from near-UV to NIR and forward or backward polarization observation at red and near infrared wavelengths (Push-broom scanning). SGLI-IRS is an optical sensor capable of multi-channel nadir observation at wavelengths from SWIR to TIR wavelengths (Cross-track scanning).n/a
VSCOperationalHigh resolution superspectral images (12 spectral bands) for vegetation and landcover applications.High resolution optical imager
3MIBeing developedMeasure aerosol parameters, air quality index, surface albedo, cloud informationn/a
AMSIBeing developedOptical high spatial resolution imagery over land and coastal areas for Copernicus operational services.High resolution optical imager
AOLCIBeing developedVisible and near-infrared hyperspectral radiometer supporting a wide range of Marine, Land, Atmosphere and Climate Services. Provides enhanced continutity of ocean colour and land colour measurements from OLCI and enhanced synergy with ASLSTRn/a
HISBeing developedPushbroom-type dual-prism Imaging Spectrometer with high radiometric accuracy and medium Signal-to-noise Ratio, operating from UV (320 nm) to SWIR (2400 nm) , based on a single MCT Detector/focal plane. The HIS aims at accurate spectral imaging on land and ocean for climatological background radiometric data acquistion and supporting cross-calibration with other stellites/sensors and on PICS/instrumented sites with highest resolution (50 m)High resolution optical imager
HSIBeing developedPushbroom-type grating Imaging Spectrometer with high Signal-to-noise Ratio and data uniformity to derive quantitative surface characteristics supporting the monitoring, implementation and improvement of a range of policies in the domain of raw materials, agriculture, soils, food security, biodiversity, environmental degradation and hazards, inland and coastal waters, snow, forestry and the urban environmentHigh resolution optical imager
METimageBeing developedOperational multi spectral imager for meteorological EPS-SG VIS/IR Imaging Mission (VII): imagery data for global and regional NWP, NWC, and climate monitoring with information on LST, SST, clouds coverage, height and micro-physics, land surfaces (vegetation, snow/ice, fire), water vapour column, aerosol and atmospheric motion vectors. Provides collocated cloud mask, height & characterisation as well as intra-pixel heterogeneity to other EPS-SG missions (with larger footprint).Multi-purpose imaging Vis/IR radiometer
FLORISApprovedMapping vegetation fluorescence to quantify photosynthetic activity.n/a
LandISProposedMeasures surface radiance, land cover state and change (e.g., vegetation type), and longwave termal infrared surface emittance. Used as multi-purpose imagery for land applications.High resolution optical imager