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Multi-temporal image analysis of historical aerial photographs and recent satellite imagery reveals evolution of water body surface area and polygonal terrain morphology in Kobuk Valley National Park, Alaska

Dates

Year
2013

Citation

Necsoiu, Marius, Dinwiddie, Cynthia L., Walter, Gary R., Larsen, Amy, and Stothoff, Stuart A., 2013, Multi-temporal image analysis of historical aerial photographs and recent satellite imagery reveals evolution of water body surface area and polygonal terrain morphology in Kobuk Valley National Park, Alaska: Environmental Research Letters, v. 8, no. 2; 2, @Paperno.025007-@Paperno.025007.

Summary

Multi-temporal image analysis of very-high-resolution historical aerial and recent satellite imagery of the Ahnewetut Wetlands in Kobuk Valley National Park, Alaska, revealed the nature of thaw lake and polygonal terrain evolution over a 54-year period of record comprising two 27-year intervals (1951-1978, 1978-2005). Using active-contouring-based change detection, high-precision orthorectification and co-registration and the normalized difference index, surface area expansion and contraction of 22 shallow water bodies, ranging in size from 0.09 to 179 ha, and the transition of ice-wedge polygons from a low- to a high-centered morphology were quantified. Total surface area decreased by only 0.4% during the first time interval, but [...]

Contacts

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Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
6127 records
Reference File
NWBLCC-20160503-Saved.xml

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1088/1748-9326/8/2/025007
ISSN http://sciencebase.gov/vocab/identifierScheme 17489326

Citation Extension

journalEnvironmental Research Letters
parts
typeNotes
value5352
typePages
value@Paperno.025007-@Paperno.025007
typeVolume
value8
typeNumber
value2; 2
citationTypeJournal Article

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