Figure 7
Validation versus in situ data from Sudan. NPP estimates versus field-based validation data of aboveground NPP (ANPP) from Sudan. (a) Average (2000–2010) MOD17 NPP (n = 31, r = 0.80, RMSE = 153 g), (b) MOD17 NPP for the same year (r = 0.64, RMSE = 145 g, n = 35), (c) NPPCombined for the same year (r = 0.64, RMSE = 176 g, n = 35).