Chenier Formation Through Wave Winnowing and Tides

نویسندگان

چکیده

Abstract Cheniers are ridges consisting of coarse‐grained sediments, resting on top the fine sediment that forms otherwise muddy coast. In this paper, we use Delft3D to explore how cheniers formed through wave winnowing. We identify three phases chenier development: (a) a winnowing phase, during which mud is washed out seabed initially mixture sand and mud, (b) transport when in upper layer transported onshore, (c) crest formation rapidly develops at landward limit onshore transport. The main mechanism driving asymmetry. During calm conditions, takes place within narrow band limiting volume delivered nearshore, therefore no develops. contrast, average storm conditions mobilize sufficient for develop. Our results thus reveal does not require extreme conditions. Furthermore, our study showed relatively slow process, with largest time scales associated Once available intertidal zone, rapidly.

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ژورنال

عنوان ژورنال: Journal Of Geophysical Research: Earth Surface

سال: 2022

ISSN: ['2169-9011', '2169-9003']

DOI: https://doi.org/10.1029/2022jf006792