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(a) Mean annual GS-NDVI for GIMMSg, GIMMS3g, MODIS NBAR, SeaWiFS, and SPOT D10 at naturally vegetated areas north of 50°N for the full available record for each product, and (b) the common record (2002–2008) of all data sets, excluding SeaWiFS which uses the period from 2002 to 2007.
