CGRG Bibliography of Canadian Geomorphology
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Author : Bastick, J.; and Manson, G.K.
Date : 2006.
Title : Ecological monitoring of the Pingo Canadian Landmark.
Publication : Coastal Zone Canada 2006 Conference and Youth Forum. 14-18 August 2006, Tuktoyaktuk, Northwest Territories.
Issue :
Page(s) :
Abstract
The Pingo Canadian Landmark (PCL) was identified as a Natural Site of Canadian Significance in 1978. In September 2001, a Memorandum of Agreement (MOA) was signed by the Tuktoyaktuk Community Corporation, the Tuktoyaktuk Hunters and Trappers Committee, the Hamlet of Tuktoyaktuk, the Inuvialuit Land Administration, and Parks Canada Agency (PCA) in order to provide the framework for PCL management. The MOA contains commitments to monitor climate in Tuktoyaktuk, elevation changes of Split and Ibyuk Pingos, and the change in vegetative cover on pingos and sensitive areas associated with visitor use and natural erosion. As coastal landforms, the pingos in the PCL are susceptible to increased coastal erosion and slumping. In 2004, following on previous monitoring conducted by J.R. Mackay, the Geological Survey of Canada and PCA reinitiated monitoring of pingos and other landforms in the PCL using a real-time kinematic (RTK) global positioning system, airborne LiDAR (Light Detection And Ranging), and photopoint monitoring. Two profiles were established on Ibyuk in 2004 and resurveyed in 2005, and four profiles were established on Split in 2005. LiDAR collected in 2004 was used to establish the lakebed elevations and compared to RTK summit elevations to determine pingo height. From lakebed to summit, Ibyuk was found to be 49.09 m tall and Split was found to be 37.31 m tall. Repeat RTK measurements show no significant change (i.e. < 1 cm) in ground or benchmark elevations between 2004 and 2005 and no changes in slope profiles, though a failure on the south side of Ibyuk grew between 2004 and 2005. Photos are taken annually of both Ibyuk and Split pingos, from the four cardinal compass points, in order to record changes in vegetative cover and pingo form. Weather data is collected from the Tuktoyaktuk weather station in order to chart temperature and precipitation trends.
Bibliography of Canadian Geomorphology