inscription
Portail d'information géographique

Résultats de la recherche (1305 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Ice-wedge cracks, Western Arctic Coast
  • Pingos of the Western Arctic coast, Canada in Regional geografi. (La géographie régionale)
  • Pingos and pingo-like forms, Banks Island, Western Canadian Arctic
  • Growth of Ibryuk Pingo, western Arctic coast, Canada, and some implications for environmental reconstructions
  • Arctique canadien ; Canada ; Cryopédologie ; Géographie physique ; Géomorphodynamique ; Northwest Territories ; Pingo ; Périglaciaire ; Westhern Arctic Coast ; Zone froide
  • Warming of permafrost in the Arctic National Wildlife Refuge, Alaska
  • -long warming documented for the central and western Arctic has also occurred in the region near Barter Island and in the northern Arctic NWR.
  • This paper reports borehole temperature measurements made in permafrost over a period of 2 decades (1985, 1988, and 2004) at sites on Barter Island and in the Arctic National Wildlife Refuge (Arctic NWR). These measurements indicate that the century
  • Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada
  • Active layer ; Arctic Region ; Canada ; Geochemistry ; Island ; Palaeoclimatology ; Periglacial features ; Permafrost ; Salinisation ; Soil properties ; Yukon Territory
  • Lake-bottom thermal regimes, Western Arctic Coast, Canada
  • Arctic Region ; Canada ; Cold area ; Comparative study ; Delta ; Lake ; Northwest Territories ; Permafrost ; Taiga ; Temperature ; Thermal regime ; Tundra
  • Syngenetic sand veins and anti-syngenetic sand wedges, Tuktoyaktuk Coastlands, western Arctic Canada
  • Aeolian deflation ; Arctic Region ; Canada ; Coastal environment ; Cold area ; Comparative study ; Ice wedge ; Northwest Territories ; Palaeo-environment ; Periglacial features ; Permafrost ; Quaternary ; Sand ; Sedimentary structure ; Stratigraphy
  • This paper discusses whether sedimentary structures within sand sheets from western Arctic Canada record permafrost conditions and, therefore, palaeoclimate, during sand-sheet formation. Its objectives are to : describe the abundance, size
  • Periglacial slopewash investigations, Banks Island, Western Arctic
  • Banks Island ; Canada ; Ecoulement ; Ecoulement superficiel ; Géographie des régions polaires ; Permafrost ; Périglaciaire ; Ruissellement ; Versant ; Western Arctic ; Zone froide
  • Morphometric and spatial analysis of thaw lakes and drained thaw lake basins in the western Arctic Coastal Plain, Alaska
  • The aims of this paper are to : identify thaw lakes and drained thaw lake basins (DTLBs) in the western Arctic Coastal Plain (ACP); develop several geometric shape metrics for lakes and basins, and perform statistically-based spatial
  • The Horton River breakthrough and resulting geomorphic changes in a permafrost environment, Western Arctic Coast, Canada
  • Large scale magnetic anomalies over western Canada and the Arctic: a discussion
  • Discussion of C.R. Burn's Lake-bottom thermal regimes, Western Arctic Coast, Canada
  • A Century (1910–2008) of change in a collapsing pingo, Parry Peninsula, Western Arctic Coast, Canada
  • by ground squirrels and foxes on the slopes of the pingo. It is unusual to detect change of collapsed pingos near the western Arctic coast of Canada unless ground ice is exposed in the core or on the sides of the pingo. The increases since 1996 in height
  • and cover of willows are the first record of such change from western Arctic Canada.
  • C 14 dating of trapped gases in massive ground ice, Western Canadian Arctic
  • Arctic Region ; C 14 dating ; Canada ; Carbon dioxide ; Dating ; Ground ice ; Ice ; Methodology
  • Sea-ice anomalies in the western Arctic and Greenland-Iceland Sea and their relation to an interdecadal climate cycle
  • Arctic Region ; Climate ; Climatic cycle ; Climatic variability ; Cold area ; Ice ; Ocean ; Salinity ; Sea ice ; Time series
  • Thermally induced movements in ice-wedge polygons, western arctic coast : a long-term study
  • Active layer ; Arctic Region ; Cold area ; Ice wedges ; Palaeogeography ; Patterned ground ; Periglacial features ; Permafrost ; Soil temperature ; Stratigraphy
  • Late Quaternary sea level changes on Brock and Prince Patrick islands, western canadian arctic archipelago
  • Arctic Region ; C 14 dating ; Canada ; Glacial isostasy ; Quaternary ; Sea ice ; Sea level ; Tectonics ; Vertical movement
  • Ice wedges on hillslopes and landform evolution in the late Quaternary, western Arctic coast, Canada
  • Active layer ; Arctic Region ; Canada ; Coastal environment ; Cold area ; Diapir ; Ice wedge ; Permafrost ; Quaternary ; Slope ; Slope gradient ; Soil erosion
  • Perennial spring occurrence in the Expedition Fiord area of western Axel Heiberg Island, Canadian High Arctic
  • Arctic Region ; Canada ; Cold area ; Discharge ; Hydrogeology ; Hydrology ; Ice ; Permafrost ; Springs ; Water temperature