Thursday 18 April 2013

Variable overwash intrusion

Just after the Carnival holidays, on February 13th, we made another topographic survey on Barreta Island. This time we expect to measure overwash related to a high tide level due to the equinoctial spring tides.
Overwash intrusion was relatively small at west:

Overwash of the barrier berm, but not of the barrier crest.

Overwash intrusion was longer at East:
Overwash of the barrier until the vegetation on the backbarrier.


The low-tide terrace has significant alongshore variations, even in areas that are not connected to the Ancão Inlet ebb delta.

Low-tide terrace in two sites of the study area, Eastwards of the Ancão ebb delta.

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