Fig. 3.

NDVI, calculated from reflectances shown in Fig. 2, from the linear mixture models of bare soil with other landscape cover types. The line colors correspond to the lines in Fig. 2. For all lines except one, the x‐axis value is the cover fraction of the cover type given in the legend, with the 0 cover fraction value representing 100% bare soil cover. VP stands for vascular plants (canopy consisting of graminoids with a green LAI of 0.75 and standing dead LAI of 0.25). The line labeled Water/VP describes mixtures of open water and VP cover, so for this line the 0 cover fraction value on the x‐axis represents 100% open water and the x‐axis values represent vascular plant cover fractions.