CGRG Bibliography of Canadian Geomorphology
Search Results
Author : Catto, N.
Date : 2005.
Title : More than 15 Years, more than 15 Stressors: Evolution of Mobile Beach, NL 1989-2005.
Publication : Annual Meeting of the Canadian Association of Geographer. Tuesday, May 31 to Saturday, to June 4, 2005. University of Western Ontario, London, Ontario.
Issue :
Page(s) :
Abstract
Mobile Beach, a reflective, moderate-to-high energy, gravel bayhead bar in eastern Newfoundland, has been influenced by southwesterly winds from 11 hurricanes and strong winter storms between July 1989 and January 2005. Northeasterly winds associated with 6 severe autumn and winter storms have had a strong geomorphic influence. Southeasterly winds are also significant geomorphic agents. Yearly variations in the extent of seasonal ice cover offshore, and snow cover, ice foot development, and freezing of beach sediment, also have shaped Mobile Beach. ATV activity and foot traffic on the East Coast Trail have resulted in coarsening, compaction, and steepening. Excavation of a drainage channel through the beach affected sediment supply and transport. Yearly variations in hurricane frequency and strength, in the occurrence and impact of northeast winds, and in seasonal ice cover, play a major role in shaping coastal morphology, in conjunction with sea level rise (ca. 5 mm/a). Variations in climate indices, including the NAO, ACE, and NTC, are reflected in storm effectiveness and snow and ice influence. Although Mobile does respond to large-scale, regional to hemispheric factors, local factors, including the angle of wave attack, the number of previous events, and anthropogenic activity, play the dominant role here
Bibliography of Canadian Geomorphology