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TitrePolar coasts
AuteurForbes, D L; Hansom, J D
SourceTreatise on estuarine and coastal science; par Wolanski, E (éd.); McLusky, D S (éd.); vol. 3, 2011 p. 245-283
Année2011
Séries alt.Secteur des sciences de la Terre, Contribution externe 20100368
ÉditeurElsevier
Documentlivre
Lang.anglais
Mediapapier
ProvinceNunavut; Territoires du Nord-Ouest; Yukon
SNRC27; 28; 37; 38; 39; 47; 48; 49; 57; 58; 59; 67; 68; 69; 77; 78; 79; 87; 88; 89; 97; 98; 99; 107; 117; 120; 340; 560
Lat/Long OENS-180.0000 180.0000 90.0000 68.0000
Lat/Long OENS-180.0000 180.0000 -60.0000 -90.0000
Sujetsmilieu côtièr; études côtières; érosion côtière; changements du niveau de la mer; variations du niveau de la mer; érosion; littoraux; variations du littoral; pergélisol; glace fossile; glace marine; sedimentation; géologie des dépôts meubles/géomorphologie; géologie marine
Illustrationslocation maps; photographs; plots
ProgrammeGestionn aire de programme - sciences de changements climatiques, Géosciences de changements climatiques
Résumé(disponible en anglais seulement)
Polar and subpolar coasts are distinctive because of extreme seasonality and the presence of ice (predominantly tidewater glaciers, ice shelves, sea ice, and ground ice). Sea ice plays a protective role but may be either erosional or constructive when mobile. Wave activity, though effective mainly during the short summer, imposes a strong morphological signature on most sedimentary coasts. Unlithified coasts in permafrost are widespread on the Arctic Coastal Plain, where combined thermal and mechanical processes promote rapid erosion in ice-rich deposits. Antarctic and sub-Antarctic coasts are mainly dominated by rock or ice, as are parts of the Arctic coast.
GEOSCAN ID287417