Image Details
Caption: Figure 5.
Scatter plots of (a) slope and TRI, and (b) SDS and VRM. Dashed curves are envelopes defined by terrain configurations that minimize (a) TRI values for a given slope, or (b) VRM values for a given SDS. These terrain configurations correspond to (a) smooth surfaces, or (b) roughness with coaligned slopes, and departures from these curves suggest increasing roughness or roughness isotropy, respectively.
© 2026. The Author(s). Published by the American Astronomical Society.