ripple symmetry index

ripple symmetry index

[′rip·əl ′sim·ə·trē ‚in‚deks]
(geology)
A measure of the degree of symmetry of a ripple mark, equal to the ratio of the length of the gentle (upcurrent) side to the steep (downcurrent) side.
References in periodicals archive ?
Ripple index (RI), ripple symmetry index (RSI), and parallelism index (PI) are calculated for the HFM (Table 1).