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TitleCoastal permafrost erosion
AuthorJones, B M; Irrgang, A M; Farquharson, L M; Lantuit, H; Whalen, DORCID logo; Ogorodov, S; Grigoriev, M; Tweedie, C; Gibbs, A E; Strzelecki, M C; Baranskaya, A; Belova, N; Sinitsyn, A; Kroon, A; Maslakov, A; Vieira, G; Grosse, G; Overduin, P; Nitze, I; Maio, C; Overbeck, J; Bendixen, M; Zagorski, P; Romanovsky, V E
SourceNOAA Arctic Report Card 2020, 2020 p. 1-10,
Alt SeriesNatural Resources Canada, Contribution Series 20200761
PublisherNOAA Cooperative Institutes Office of Oceanic Atmospheric Research
Mediaon-line; digital
File formatpdf
ProvinceNorthwest Territories; Yukon
NTS107; 117
AreaBeaufort Sea; Greenland Sea; Barents Sea; Kara Sea; Laptev Sea; Chukchi Sea; Canada
Lat/Long WENS-180.0000 180.0000 84.0000 60.0000
Subjectsenvironmental geology; surficial geology/geomorphology; Nature and Environment; Science and Technology; coastal erosion; coastal environment; erosion rates; permafrost; ground ice; climate effects; climate, arctic; temperature; sea ice; Climate change; permafrost thaw; cumulative effects
Illustrationsgeoscientific sketch maps; tables
ProgramClimate Change Geoscience Coastal Infrastructure
Released2020 01 01
Summary(Plain Language Summary, not published)
Permafrost coasts in the Arctic make up more than 30% of Earth's coastlines (Fig. 1; Lantuit et al. 2012) and they are sensitive to Arctic Ocean/permafrost-influenced land linkages (Nielsen et al. 2020). The changes currently taking place along these coasts are both indicators and integrators of changes occurring in the global climate system. Reductions in sea ice extent and increases in the duration of the open water period (see essay Sea Ice), rising air (see essay Surface Air Temperature) and sea surface temperatures (see essay Sea Surface Temperature), absolute and relative sea-level rise (see essay Greenland Ice Sheet), warming permafrost (Biskaborn et al. 2019), subsiding permafrost landscapes (Lim et al. 2020), and increased storminess and wave heights (Casas-Prat and Wang, 2020) all interact to amplify coastal permafrost erosion (Forbes, 2011). Recent changes in these conditions have increased the vulnerability of permafrost coasts to erosion and altered coastal morphologies (Farquharson et al. 2018), ecosystems (Fritz et al. 2017), carbon export to oceans (Tanski et al. 2019), infrastructure (Fritz et al. 2017), and human subsistence lifestyles (Irrgang et al. 2018).

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