CGRG Bibliography of Canadian Geomorphology
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Author : Anderson, J.L., and Walker, I.J.
Date : 2004.
Title : Airflow and sediment transport variations for an oblique onshore wind-event over a driftwood beach characterizing near surface airflow.
Publication : Annual Meeting of the Western Division, Canadian Association of Geographers. March 18-20, 2004. Medicine Hat College, Medicine Hat, Alberta.
Issue :
Page(s) :
Abstract
Detailed measurements of airflow and sediment transport characteristics were conducted over a beach-foredune plain complex during a gale force storm (62-87 km/hr) on Graham Island, Queen Charlotte Islands. Airflow vectors and vegetation density were measured at 39 and 61 locations, respectively, from the backshore 300 m landward through a trough blowout onto the foredune plain. A transect of ultrasonic anemometers and saltation sensors measured high-frequency turbulence and sand transport variations. Highest saltation rates occurred under steady flow conditions due to topographic flow compression and acceleration in regions of low vegetation (< 10 %). Sediment properties show mean grain size decreasing with distance from the beach and poor sorting suggests winnowing in areas of flow acceleration and decreased vegetation.
Bibliography of Canadian Geomorphology