Beaufort Sea Coastal Restoration

Pingo Bluff

Main Project Contact:
Erika Hille

Project Start Date:
April 2017

Project End Date:
March 2022

Project Name:
Beaufort Sea Coastal Restoration: Exploring the Potential for Using Indigenous Plant Species to Revegetate Coastline Affected by Permafrost Thaw Slumping

ARI Team:
Greg Elias
Edwin Amos
Eric Cheyne
Garfield Giff
Elizabeth Kolb

Erike Hille    Eric Cheyne    Wayne Thrasher

Overview:
The overall goal of this project is to examine the effects of thaw slumping on the nearshore waters of Kugmallit Bay and to create a plan to mitigate these effects using indigenous plant species.

Objectives:

  1. Examine the rate of coastal erosion and/or thaw slump impacts along the coastline of Kugmallit Bay by comparing historical aerial photographs with recent satellite imagery;
  2. Develop Hydrological, Vegetation, and Ground Temperature Maps of the coastline within and near disturbed sites;
  3. Monitor the effects of coastal erosion and thaw slumping on landscape-level runoff to Kugmallit Bay;
  4. Monitor the effects of coastal erosion and thaw slumping on the water quality of the near-shore waters of Kugmallit Bay; and
  5. Determine if Indigenous plant species can be used to stabilize thaw slumps along the Beaufort Sea coast.

Location:
Permafrost Thaw slumps are features that occur when near surface permafrost is exposed and thaws, causing it to become unstable and collapse. This study will focus on five permafrost thaw slumps located along the coastal region of Kugmallit Bay, near Tuktoyaktuk, NT. These sites were chosen in consultation with the Tuktoyaktuk Hunters and Trappers Committee.

Study Sites

Methods:
The project will utilize the following methodologies:

  1. Community Consultation to Identify Selected Sites
  2. Unmanned Aerial Vehicle Photogrammetry, Multispectral, and Thermal Imagery Techniques
  3. Sampling of Lanscrape Water Runoff from Slump-Impacted Terrain 
  4. Collection of Local Plant Seeds for Revegetation

Tuktoyaktuk Island   Pingo Bluff   Northwestern Shore of Kugmallit Bay  

Schedule:

TASK DATE
Community Consultation March 2017
Drone Surveys July 2018
Seed Collection August 2018
Water Sampling, Seed Testing & Cleaning September 2018
Annual Report for Community September 2018 - November 2018
Plant and Grow Seedlings April 2019
Drone Survey, Seedling Planted at Sites July 2019
Annual Report for Community September 2019 - November 2019
Drone Surveys, Seedling Planted at Sites July 2020
Water Sampling, Vegetation Monitoring September 2020
Annual Report for Community September 2020 - November 2020
Drone Surveys, Seedling Planted at Sites July 2021
Water Sampling, Vegetation Monitoring September 2021
Annual Report for Community September 2021 - November 2021
Create Guide to Revegetation Along the Beaufort Sea Coast January 2022 - March 2022

 

 

 

 

 

 

   

External Partners:
Fisheries and Oceans Canada
Polar Continental Shelf Program
Natural Resources Canada
Dustin Whalen, Natural Resources Canada

Keywords:
Coastal Processes, Climate Change, Permafrost, Retrogressive Thaw Slumping, Landscape Runoff, Contaminants, Vegetation, Reclamation