M.C. Strzelecki
Cryo-conditioned rocky coast systems: A case study from Wilczekodden, Svalbard
Strzelecki, M.C.; Kasprzak, M.; Lim, M.; Swirad, Z.M.; Jaskólski, M.; Pawłowski, Ł; Modzel, P.
Authors
M. Kasprzak
M. Lim
Z.M. Swirad
M. Jaskólski
Ł Pawłowski
P. Modzel
Contributors
Zuzanna Swirad zuzanna.m.swirad@durham.ac.uk
Other
Zuzanna Swirad hwdm54@durham.ac.uk
Other
Abstract
This paper presents the results of an investigation into the processes controlling development of a cryo-conditioned rock coast system in Hornsund, Svalbard. A suite of nested geomorphological and geophysical methods have been applied to characterise the functioning of rock cliffs and shore platforms influenced by lithological control and geomorphic processes driven by polar coast environments. Electrical resistivity tomography (ERT) surveys have been used to investigate permafrost control on rock coast dynamics and reveal the strong interaction with marine processes in High Arctic coastal settings. Schmidt hammer rock tests, demonstrated strong spatial control on the degree of rock weathering (rock strength) along High Arctic rock coasts. Elevation controlled geomorphic zones are identified and linked to distinct processes and mechanisms, transitioning from peak hardness values at the ice foot through the wave and storm dominated scour zones to the lowest values on the cliff tops, where the effects of periglacial weathering dominate. Observations of rock surface change using a traversing micro-erosion meter (TMEM) indicate that significant changes in erosion rates occur at the junction between the shore platform and the cliff toe, where rock erosion is facilitated by frequent wetting and drying and operation of nivation and sea ice processes (formation and melting of snow patches and icefoot complexes). The results are synthesised to propose a new conceptual model of High Arctic rock coast systems, with the aim of contributing towards a unifying concept of cold region landscape evolution and providing direction for future research regarding the state of polar rock coasts.
Citation
Strzelecki, M., Kasprzak, M., Lim, M., Swirad, Z., Jaskólski, M., Pawłowski, Ł., & Modzel, P. (2017). Cryo-conditioned rocky coast systems: A case study from Wilczekodden, Svalbard. Science of the Total Environment, 607-608, 443-453. https://doi.org/10.1016/j.scitotenv.2017.07.009
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 2, 2017 |
Online Publication Date | Jul 26, 2017 |
Publication Date | Dec 31, 2017 |
Deposit Date | Jul 21, 2017 |
Publicly Available Date | Aug 22, 2018 |
Journal | Science of the Total Environment |
Print ISSN | 0048-9697 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 607-608 |
Pages | 443-453 |
DOI | https://doi.org/10.1016/j.scitotenv.2017.07.009 |
Related Public URLs | http://nrl.northumbria.ac.uk/31397/ |
Files
Accepted Journal Article
(3.6 Mb)
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Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
© 2017 This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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