Linkages between lake shrinkage/expansion and sublacustrine permafrost distribution determined from remote sensing of interior Alaska, USA
Version of Record online: 14 MAR 2013
©2013. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 5, pages 882–887, 16 March 2013
How to Cite
2013), Linkages between lake shrinkage/expansion and sublacustrine permafrost distribution determined from remote sensing of interior Alaska, USA, Geophys. Res. Lett., 40, 882–887, doi:10.1002/grl.50187., , , , and (
- Issue online: 24 APR 2013
- Version of Record online: 14 MAR 2013
- Accepted manuscript online: 25 JAN 2013 12:00AM EST
- Manuscript Accepted: 21 JAN 2013
- Manuscript Revised: 11 JAN 2013
- Manuscript Received: 2 NOV 2012
- SERDP. Grant Number: RC-2111
All Supporting Information may be found in the online version of this article.
|grl50187-sup-0001-2012GL054463ts01.txt||plain text document||0K||Observed counts of lakes having different combinations of surface area trend and sublacustrine thaw state.|
|grl50187-sup-0002-2012GL054463ts02.txt||plain text document||0K||Contingency table used to test null hypothesis that the occurrence of Type A taliks (open taliks) is not associated with lake surface-area trend, degrees of freedom = 2, chi-square = 2.0, p-value = 0.366.|
|grl50187-sup-0003-2012GL054463ts03.txt||plain text document||0K||Contingency table used to test null hypothesis that the occurrence of unfrozen gravel is not associated with lake surface-area trend, degrees of freedom = 2, chi-square = 6.5, p-value = 0.039.|
|grl50187-sup-0004-2012GL054463ts04.txt||plain text document||0K||Contingency table used to test null hypothesis that the occurrence of frozen silt is not associated with the occurrence of expanding lakes, degrees of freedom = 1, chi-square = 3.9, p-value = 0.047.|
|grl50187-sup-0005-2012GL054463fs01.pdf||PDF document||34K||Histograms of electrical resistivity (upper 10 m), from the airborne electromagnetic survey, at locations of the ground-based permafrost survey [Jepsen et al., 2012]. Actual counts were multiplied by normalization factors of 1.40 (permafrost not encountered) and 1.78 (permafrost encountered) to produce histograms with areas of unity. Curves are log-normal distributions having same mean and variance as the observed data.|
|grl50187-sup-0006-2012GL054463fs02.pdf||PDF document||146K||Maximum lake area versus sublacustrine thaw states for (a) gravel-silt, (b) gravel, and (c) silt. Gravel-silt thaw states are defined in article Figure 3. Upper and lower numbers in the bars are the percentages of total lake surface-area in the study area and the number of lakes sampled by the airborne electromagnetic survey, respectively.|
|grl50187-sup-0007-2012GL054463readme.txt||plain text document||11K||Supporting Information|
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