This data set is only available for a restricted user group, please contact us if you want to access these data.
Coverage, spatial and temporal resolution
Period and temporal resolution:
- 11-1998 - 08-2018
- 10-daily sampling, 60-day effective resolution
Spatial coverage and resolution:
- Spatial resolution: 0.5° x 0.5° (Plate Carree)
- Geographic latitude: 89.75°S to 89.75°N; data only between 60°S and 80°N
- Geographic longitude: 179.75°W to 179.75°E
- Dimension: 360 rows x 720 columns
- Altitude: follows topography
The original data set at 1/112° grid resolution contains a bit-wise to read quality flag. The content of the flag can be read under http://land.copernicus.eu/global/products/fcover under "Technical".
The 0.5° x 0.5° data set offered here contains two basic separate flags. One flag refers to the two surface types where FCOVER retrieval is either impossible or prone to larger uncertainties. The other flag refers to the type of retrieval, i.e. whether data are interpolated or whether special corrections were applied to account for high latitude / high solar zenith angle illumination conditions. In addition, only the valid 1/112° x 1/112° grid points are used to compute the average value of the FCOVER and its uncertainty. As can be seen in the parameters section we give number of land pixels, number of valid pixels, and number of usable satellite data to convey information about reliability. We recommend to read the text given in the netCDF files.
FCOVER products have been validated and are reported to have a good quality, showing a spatial consistent global distribution of retrievals. Temporal profiles are very smooth and are highly consistent from year to year. Comparison with ground data shows that target accuracy is achieved, and no bias was detected. This applies to FCOVER based on SPOT-4 and -5 as well as on PROBA-V. More information about the validation efforts can be found in the validation reports listed under references.
We would like to mention that for continuing the SPOT-4 and -5 time series with PROBA-V some pre-processing needs to be done. Information about this given in this report.
Institut National de la Recherche Agronomique (INRA), France
email: frederic.baret (at) avignon.inra.fr
email: Bruno.Smets (at) vito.be
ICDC / CEN / University of Hamburg
email: stefan.kern (at) uni-hamburg.de
Upon using this data please cite as follows:
Baret, F., et al. (2013). GEOV1: LAI and FAPAR essential climate variables and FCOVER global time series capitalizing over existing products. Part1: Principles of development and production. Remote Sensing of Environment, 137: 299-309
Camacho, F., et al. (2013). GEOV1: LAI, FAPAR Essential Climate Variables and FCOVER global time series capitalizing over existing products. Part 2: Validation and intercomparison with reference products. Remote Sensing of Environment 137: 310-329
The product was generated by the land service of Copernicus, the Earth Observation programme of the European Commission. The research leading to the current version of the product has received funding from various European Commission Research and Technical Development programmes. The product is based on SPOT/VGT 1km data ((c) CNES / PROBA-V 1km data ((c) ESA and distributed by VITO), last access date: 2/10/2018, provided on 0.5 degree x 0.5 degree plate carree grid in NetCDF file format by the Integrated Climate Data Center (ICDC, icdc.cen.uni-hamburg.de) University of Hamburg, Hamburg, Germany.