Fig. 2: Scalloping of primary ridges and metrics for differentiating networked morphologies.
From: Networked configurations as an emergent property of transverse aeolian ridges on Mars
a–c Note that nearly every kink (annotated in red) in the primary ridges corresponds to the terminus of a secondary ridge, and that the kinks form ~120° angles. Sequence left to right (a–c) represents an evolution towards more well-developed secondary ridges (a: ESP_064811_1670; b: ESP_064811_1670; c: ESP_065223_1855). d, e manually traced ridge crests in black, vertices per cell in green, and nodal degree in orange. d Rectangular networked TARs with a median of four vertices per cell, and a nodal degree of two or three when minor misalignments occur (circled in yellow) (ESP_017661_1545). e Hexagonal networked TARs with a median of six vertices per cell. Hexagonal networked TARs almost exclusively have a nodal degree of three (ESP_064877_1670).
