Data access

Presentation

CNES, INRAE Avignon and the CREAF in Barcelona have joint force in this action realized within Theia Vegetation Biophysics Variable SEC.

Two AVHRR products are available to document a time series of vegetation variables (leaf area index, fraction of PAR absorbed and vegetation cover) for the 1981-2019:

  • GEOV2-AVHRR is a global map of vegetation biophysical variables (FAPAR, LAI and FCOVER) calculated every ten days from AVHRR LTDR data.
  • GEOV2 Global Change Monitoring product (GEOV2-GCM) is a global map of vegetation biophysical variables (FAPAR, LAI and FCOVER) calculated every ten days since 1981 at 0.5º resolution after resampling the 0.05º GEOV2-AVHRR products.

Both products are computed using data from the AVHRR instrument flown on board various NOAA platforms.

Contact

theia-land@cnes.fr

Satellite

Name : NOAA

Imaging mode : Optical

Spectral bands : 

  • Red
  • Near infrared

Resolutions : 4 km

Observation capability : Global coverage in 1 day

Coverage :

  • Area : global
  • Period : 1981 to 2013

Documentation