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Assessment of pingo distribution and morphometry using an IfSAR derived digital surface model, western Arctic Coastal Plain, Northern Alaska

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Assessment of pingo distribution and morphometry using an IfSAR derived digital surface model, western Arctic Coastal Plain, Northern Alaska; 2012; Article; Journal; Geomorphology; Jones, B. M.; Grosse, G.; Hinkel, K. M.; Arp, C. D.; Walker, S.; Beck, R. A.; Galloway, J. P.

Summary

Pingos are circular to elongate ice-cored mounds that form by injection and freezing of pressurized water in near-surface permafrost. Here we use a digital surface model (DSM) derived from an airborne Interferometric Synthetic Aperture Radar (IfSAR) system to assess the distribution and morphometry of pingos within a 40,000 km2 area on the western Arctic Coastal Plain of northern Alaska. We have identified 1247 pingo forms in the study region, ranging in height from 2 to 21 m, with a mean height of 4.6 m. Pingos in this region are of hydrostatic origin, with 98% located within 995 drained lake basins, most of which are underlain by thick eolian sand deposits. The highest pingo density (0.18 km− 2) occurs where streams have reworked [...]

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Type Scheme Key
local-index unknown 70032503
local-pk unknown 70032503
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1016/j.geomorph.2011.08.007
series unknown Geomorphology

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citationTypeArticle
journalGeomorphology
languageEnglish
parts
typevolume
value138
typeissue
value1

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