Valid values in the VCF percent tree cover layer are: 0 100 percent tree cover – 200 water 253 fill / outside of projection Percent non-tree vegetation The percent non-tree vegetation layer is a primary data layer which describes the percent of each pixel covered by non-tree vegetation canopy and is defined in a similar way to tree canopy cover. Valid values in the VCF percent non-tree vegetation layer are: 0 100 percent non-tree vegetation – 200 water 253 fill / outside of projection Percent non-vegetated The percent non-vegetated layer is a primary data layer which describes the percent of each pixel with no vegetation cover. It is defined as 100% - %tree_cover - %non-tree_vegetation. Valid values in the VCF percent non-vegetated layer are: 0 100 percent non-vegetated – 200 253 fill / outside of projection Quality The quality SDS is an 8-bit packed bit layer which describes, per pixel, those inputs that had poor quality defined by the MODIS surface reflectance quality assurance values. In this case we define poor quality as those pixels which are cloudy, high aerosol, under cloud shadow, or with view zenith >45°. The bit field is described in table 1 below: Bit Input layers State 0 DOY 065 097 0 clear; 1 bad – 1 DOY 113 145 0 clear; 1 bad – 2 DOY 161 193 0 clear; 1 bad – 3 DOY 209 241 0 clear; 1 bad – 4 DOY 257 289 0 clear; 1 bad – 5 DOY 305 337 0 clear; 1 bad –
Valid values in the VCF percent tree cover layer are: 0 – 100 percent tree cover 200 water 253 fill / outside of projection Percent non-tree vegetation The percent non-tree vegetation layer is a primary data layer which describes the percent of each pixel covered by non-tree vegetation canopy and is defined in a similar way to tree canopy cover. Valid values in the VCF percent non-tree vegetation layer are: 0 – 100 percent non-tree vegetation 200 water 253 fill / outside of projection Percent non-vegetated The percent non-vegetated layer is a primary data layer which describes the percent of each pixel with no vegetation cover. It is defined as 100% - %tree_cover - %non-tree_vegetation. Valid values in the VCF percent non-vegetated layer are: 0 – 100 percent non-vegetated 200 253 fill / outside of projection Quality The quality SDS is an 8-bit packed bit layer which describes, per pixel, those inputs that had poor quality defined by the MODIS surface reflectance quality assurance values. In this case we define poor quality as those pixels which are cloudy, high aerosol, under cloud shadow, or with view zenith >45°. The bit field is described in table 1 below: Bit Input layers State 0 DOY 065 – 097 0 clear; 1 bad 1 DOY 113 – 145 0 clear; 1 bad 2 DOY 161 – 193 0 clear; 1 bad 3 DOY 209 – 241 0 clear; 1 bad 4 DOY 257 – 289 0 clear; 1 bad 5 DOY 305 – 337 0 clear; 1 bad