Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.153
IF5.153
IF 5-year value: 5.460
IF 5-year
5.460
CiteScore value: 7.8
CiteScore
7.8
SNIP value: 1.623
SNIP1.623
IPP value: 4.91
IPP4.91
SJR value: 2.092
SJR2.092
Scimago H <br class='widget-line-break'>index value: 123
Scimago H
index
123
h5-index value: 65
h5-index65
Preprints
https://doi.org/10.5194/hess-2020-411
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-2020-411
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  22 Sep 2020

22 Sep 2020

Review status
This preprint is currently under review for the journal HESS.

The trajectory of landcover change in peatland complexes with discontinuous permafrost, northwestern Canada

Olivia Carpino1, Kristine Haynes1, Ryan Connon2, James Craig3, Élise Devoie3, and William Quinton1 Olivia Carpino et al.
  • 1Cold Regions Research Centre, Wilfrid Laurier University, Waterloo, Ontario, N2L 3C5, Canada
  • 2Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, Northwest Territories, X1A 2L9, Canada
  • 3Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada

Abstract. The discontinuous permafrost zone is undergoing rapid transformation as a result of unprecedented permafrost thaw brought on by circumpolar climate warming. Rapid climate warming over recent decades has significantly decreased the area underlain by permafrost in peatland complexes. It has catalyzed extensive landscape transitions in the Taiga Plains of northwestern Canada, transforming forest-dominated landscapes to those that are wetland-dominated. The high rate and large spatial extent of this thaw-induced landcover transformation indicates that this region is particularly sensitive to warming temperatures and will continue to respond to climatic changes and landscape disturbances. This study explores the current trajectory of landcover change across a 300 000 km2 region of northwestern Canada's discontinuous permafrost zone by presenting a space-for-time substitution that capitalizes on the region's 600 km latitudinal span. To illustrate this trajectory of change we present the distribution of peatland-rich environments that govern permafrost coverage in this region of the discontinuous permafrost zone. We also establish that relatively undisturbed forested plateau-wetland complexes dominate the region's higher latitudes, forest-wetland patchworks are most prevalent at the medial latitudes, and forested peatlands are increasingly present across lower latitudes, indicating not only a climatic gradient but also a landscape in transition as local mean temperatures increase. This study combines extensive geomatics data with ground-based meteorological and hydrological measurements to inform a new conceptual model of landscape evolution that accounts for the observed patterns of permafrost thaw-induced landcover change, and provides a basis for predicting future changes.

Olivia Carpino et al.

Interactive discussion

Status: open (until 28 Nov 2020)
Status: open (until 28 Nov 2020)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Olivia Carpino et al.

Olivia Carpino et al.

Viewed

Total article views: 222 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
188 31 3 222 4 3
  • HTML: 188
  • PDF: 31
  • XML: 3
  • Total: 222
  • BibTeX: 4
  • EndNote: 3
Views and downloads (calculated since 22 Sep 2020)
Cumulative views and downloads (calculated since 22 Sep 2020)

Viewed (geographical distribution)

Total article views: 199 (including HTML, PDF, and XML) Thereof 196 with geography defined and 3 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 26 Oct 2020
Publications Copernicus
Download
Short summary
How will widespread permafrost thaw and disappearance across the circumpolar subarctic region transform forests and other landcovers, ground surface energy balances and hydrological processes? In this study we explore the consequences of climate change-induced permafrost thaw across a 300 000 square-kilometre region of northwestern Canada's discontinuous permafrost zone by presenting the current trajectory of landcover change from forested peatlands to wetland-dominated terrain.
How will widespread permafrost thaw and disappearance across the circumpolar subarctic region...
Citation