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thermokarst

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Journal Article
Journal: Interpretation
Published: 25 June 2024
Interpretation (2024) 12 (3): T321–T329.
...Presley Greer; Shuhab D. Khan; Edgar A. Bering Abstract The warming of Alaska’s permafrost has been leading to thawing within its discontinuous permafrost. This can cause ice wedges to melt, resulting in thermokarst formations such as sinkholes and landslides, which are causing damage to Alaskan...
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Journal Article
Published: 01 May 2023
Russ. Geol. Geophys. (2023) 64 (5): 571–581.
... with stony floor, outliers, yardangs, and desert pavement features ( Dong et al., 2017 ). The deflation increases seasonal thaw, lowers the suprapermafrost water table, and dries out the surface, which stimulates further deflation ( Yang et al., 2004 ). The areas of deflation and thermokarst are locally...
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Journal Article
Published: 01 June 2020
Journal of Environmental and Engineering Geophysics (2020) 25 (2): 199–209.
... of interior Alaska, including thermokarst bog, forested permafrost plateau, and a rich fen. The results show how vegetation reflects shallow (0–10 m depth) permafrost distribution. Additionally, we saw shallow (0–3 m depth) low resistivity areas in forested permafrost plateau potentially indicating...
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Journal Article
Journal: Geophysics
Published: 01 April 2019
Geophysics (2019) 84 (3): EN33–EN45.
..., and it is more stable than inverting the real and imaginary data spaces separately ( Müller-Petke et al., 2011 ). The smooth inversion was chosen in this case over the blocky minimum layer inversion used on thermokarst lakes by Parsekian et al. (2013) because (1) based on time-domain electromagnetic...
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Series: Geological Society, London, Special Publications
Published: 01 January 2019
DOI: 10.1144/SP467.7
EISBN: 9781786203625
... ) the distribution of ice complexes is dense and wide-ranging. During the early Holocene epoch through to the present day some of the near-surface ground ice in these regions thawed; this created a periglacial and hydrologically active landscape dotted with solifluction/gelifluction terraces, thermokarst lakes...
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Journal Article
Journal: Geology
Published: 01 June 2016
Geology (2016) 44 (6): 439–442.
... is necessary to assess the linkages of thermokarst processes with climate variability. We analyzed sediment cores from two lakes on the Alaskan North Slope (USA), one with (Lake NE14) and one without (Perch Lake) watershed thermo-erosion. Distinct geochemical and lithological characteristics provide evidence...
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Journal Article
Journal: Geosphere
Published: 01 April 2016
Geosphere (2016) 12 (2): 632–643.
...Zhanju Lin; Jing Luo; Fujun Niu Abstract The thermal influence of a thermokarst lake on permafrost in the Beiluhe Basin of the Qinghai-Tibet Plateau was examined over nearly 10 yr (2006–2014), and lake development involved both downward and lateral heat transfers. Downward heat transfer rapidly...
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Journal Article
Published: 17 May 2012
Canadian Journal of Earth Sciences (2012) 49 (8): 979–986.
... the gully existed during these intervals and to localize thermokarst ponds in the gully area. A satellite image (IKONOS, taken in 2007, 1 pixel = 1 m) was used to manually delineate gully layout for that year. The thermo-erosional related features comprised: ( i ) sinkholes, tunnels, collapsed tunnels...
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Published: 01 December 2011
DOI: 10.1130/2011.2483(12)
Published: 01 December 2011
DOI: 10.1130/2011.2483(13)
Journal Article
Journal: The Leading Edge
Published: 01 November 2011
The Leading Edge (2011) 30 (11): 1304–1312.
... m) comprising high-velocity and low-velocity areas associated with thermokarst lakes. Our results show the potential of the joint tomography in characterizing multiscale heterogeneous velocity structures within the permafrost. The eikonal equations appear in many applications, such as optimal...
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Journal Article
Journal: Geology
Published: 01 January 2010
Geology (2010) 38 (1): 71–74.
.... Putative thermokarst depressions identified on Mars are widely considered to be the result of sublimation, evaporation, or thawing of an ice-rich substrate. The possibility that the depressions formed by melting of permafrost to create alas-like lakes has been recently proposed, but is controversial, owing...
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Book Chapter

Published: 01 January 2009
DOI: 10.1130/2009.monitoring(09)
EISBN: 9780813759432
... Table 1. A Terrain Classification for Assessing Geomorphic Changes Associated with Thermokarst Code Geomorphic Unit Code Macrotopography Code Microtopography Bx Bedrock—undifferentiated C Crest N Nonpatterned Bxr Bedrock, residual soil FH...
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Journal Article
Published: 31 January 2008
Canadian Journal of Earth Sciences (2008) 45 (1): 31–43.
.... Ground temperatures increased since 2000, most likely because of underground warming owing to groundwater flow around the permafrost body. As a result, the mound has started to settle down, and an incipient thermokarst pond became conspicuous in 2003. Corresponding author (e-mail: fabricecalmels...
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Journal Article
Journal: Geology
Published: 01 July 2007
Geology (2007) 35 (7): 583–586.
...J.C. Mars; D.W. Houseknecht Abstract A new quantitative coastal land gained-and-lost method uses image analysis of topographic maps and Landsat thematic mapper short-wave infrared data to document accelerated coastal land loss and thermokarst lake expansion and drainage. The data span 1955–2005...
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Published: 01 January 2007
DOI: 10.1130/2007.2426(07)
... suggests that thermokarst and nearshore processes are critical in altering the development of permafrost in the submarine environment. INTRODUCTION Permafrost is widely distributed today in the Arctic regions and occupies ∼25% of the land areas in the Northern Hemisphere ( Brown et al., 1998...
Journal Article
Published: 01 October 2004
Journal of Foraminiferal Research (2004) 34 (4): 249–257.
... , Holocene environmental history of thermokarst lakes on Richards Island, Northwest Territories, Canada: Thecamoebians as paleolimnological indicators: Ph.D. Dissertation, Carleton University, 119 p. ———, S chroder -A dams , C. J., and D allimore , S. R., 2000 , Holocene environmental history...
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Journal Article
Published: 08 October 2003
Canadian Journal of Earth Sciences (2003) 40 (10): 1393–1404.
.... Waves and tidal currents are mainly responsible for the evacuation and transport of thermokarst-produced silts and clays from the shore into the marine basin. Corresponding author (email: [email protected] ) 18 11 2002 3 6 2003 © 2003 NRC Canada 2003 Relative sea...
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Journal Article
Published: 20 November 2002
Canadian Journal of Earth Sciences (2002) 39 (11): 1657–1674.
... Continental Shelf Project Contribution 04001. Lake Illisarvik, prior to drainage, was a thermokarst lake that had been enlarging for thousands of years, primarily by shoreline transgression across bordering terraces with ice-wedge polygons ( Michel et al. 1989 ). Wave-eroded surface peat, which...
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Journal Article
Published: 11 January 2002
Canadian Journal of Earth Sciences (2002) 39 (1): 95–111.
... generally exceeds 400 m. Innumerable lakes, many of thermokarst origin, cover 20–40% of the area. Unfrozen basins underlie the lake bottoms, where water depths exceed the maximum thickness of lake ice, about 2 m. Natural lake drainage has been occurring for thousands of years. On average, one or two lakes...
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