The generally catastrophic effects of major storms on the geometry of intermediate- and high-order channels in northwestern California contrast with localized storm-related channel changes found in the Santa Cruz Mountains. Sediment delivery in northwestern California during storms overwhelms transport capacities throughout the length of most intermediate- and high-order channels and causes long-lasting changes in geometry. In contrast, sediment delivery during storms in the Santa Cruz Mountains overwhelms transport capacities only in localized reaches. This contrast in channel behavior is at least partially caused by contrasts in the style of landsliding found in the two areas.

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