(Article of periodic en Anglais - 2013)

Document title

Extending airborne electromagnetic surveys for regional active layer and permafrost mapping with remote sensing and ancillary data, Yukon Flats Ecoregion, Central Alaska

Authors(s) and Affiliation(s)

PASTICK N.J. (1) ; JORGENSON T. (2) ; WYLIE B.K. (3) ; MINSLEY B.J. (4) ; JI L. (5) ; WALWOORD M.A. (6) ; SMITH B.D. (4) ; ABRAHAM J.D. (4) ; ROSE J.R. (7) ;
(1) Stinger Ghaffarian Technologies, Inc., Contractor to the US Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center, Sioux Falls, ETATS-UNIS
(2) Alaska Ecoscience, Fairbanks, ETATS-UNIS
(3) USGS EROS, Sioux Falls, ETATS-UNIS
(4) USGS, Crustal Geophysics and Geochemistry Science Center, Denver, ETATS-UNIS
(5) Arctic Slope Regional Corporation Research and Technology Solutions, Contractor to the USGS EROS Center, Sioux Falls, ETATS-UNIS
(6) USGS, National Research Program, Denver, ETATS-UNIS
(7) Yukon Flats National Wildlife Refuge, Fairbanks, ETATS-UNIS


The goal of this study was to map active-layer thickness (ALT) and the presence or absence of near-surface permafrost at 30-m resolution throughout the Yukon Flats Ecoregion (YFE) of central Alaska. The AA. 1) compiled airborne electromagnetic (AEM) and field active-layer measurements for model inputs; 2) developed maps of terrain characteristics of the YFE derived from satellite imagery and ancillary data related to topography, surficial geology, soil moisture, surface temperature, vegetation and spectral characteristics; 3) spatially modelled near-surface resistivity (NSR) across the YFE at 30-m resolution using piecewise regression; and 4) spatially modelled ALT and near-surface permafrost from field data, predicted resistivity, and satellite and ancillary data using piecewise regression trees and decision tree classification.


Article of periodic

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2013, vol. 24, no3 [pp. 184-199]

Bibliographic references : 2 p.

Collation : 11 fig., 4 tabl.



Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.1775

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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