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

Auteur(s) et Affiliation(s)

PASTICK, N.J.

Stinger Ghaffarian Technologies, Inc., Contractor to the US Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center, Sioux Falls, Etats-Unis

JORGENSON, T.

Alaska Ecoscience, Fairbanks, Etats-Unis

WYLIE, B.K.

USGS EROS, Sioux Falls, Etats-Unis

MINSLEY, B.J.

USGS, Crustal Geophysics and Geochemistry Science Center, Denver, Etats-Unis

JI, L.

Arctic Slope Regional Corporation Research and Technology Solutions, Contractor to the USGS EROS Center, Sioux Falls, Etats-Unis

WALWOORD, M.A.

USGS, National Research Program, Denver, Etats-Unis

SMITH, B.D.

USGS, Crustal Geophysics and Geochemistry Science Center, Denver, Etats-Unis

ABRAHAM, J.D.

USGS, Crustal Geophysics and Geochemistry Science Center, Denver, Etats-Unis

ROSE, J.R.

Yukon Flats National Wildlife Refuge, Fairbanks, Etats-Unis

Description :
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.

Type de document :
Article de périodique

Source :
Permafrost and periglacial processes, issn : 1045-6740, 2013, vol. 24, n°. 3, p. 184-199, nombre de pages : 16, Références bibliographiques : 2 p.

Date :
2013

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais