A FEASIBILITY STUDY INTO MONITORING DEFORMATION IN THE NIGLINTGAK REGION OF THE MACKENZIE DELTA

• Main Authors: Matthew Tait, Brian Moorman
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Canada; Mackenzie Delta; permafrost
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.463.2480; http://www.fig.net/commission6/santorini/E-Applications in Geotech/E8.pdf

This paper reports on a feasibility study for the monitoring of both natural trend, and subsidence due to gas extraction, in the continuous permafrost area of the Mackenzie Delta in Northwest Canada. A base study, including hydrological and cryo-geological considerations was performed, followed by the examination of different types of monitoring method, both areal and point observation, and their potential to solve the particular problems associated with monitoring in this area. A solution was sought that would be able to be implemented without extensive further research work being undertaken. For this reason, a rigorous DGPS solution was recommended, with further studies being made into the required geometry of point monuments, their stability in permafrost over the period of the monitoring regime, and the performance of DGPS in the measurement of subsidence at latitude of 69 degrees north. 1.