Results 31 to 40 of about 574,554 (206)
High potential for loss of permafrost landforms in a changing climate
Environmental Research Letters, 2020 The presence of ground ice in Arctic soils exerts a major effect on permafrost hydrology and ecology, and factors prominently into geomorphic landform development.
Olli Karjalainen +7 more
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High-centered polygons in the Sør Rondane Mountains, East Antarctica: Possible effect of ice wedge sublimation [PDF]
, 2006 P(論文)Small high-centered polygons, 3-15m in diameter, dominate moraine fields in an inland cold desert of the Sør Rondane Mountains, Antarctica. They mainly occur on moraine fields at two stages younger than 1Ma. The polygons on the younger moraine (
Hirakawa, Kazuomi, Matsuoka, Norikazu
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COUNTING ICE-WEDGE POLYGONS FROM SPACE: USE OF COMMERCIAL SATELLITE IMAGERY TO MONITOR CHANGING ARCTIC POLYGONAL TUNDRA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 The microtopography associated with ice wedge polygons (IWPs) governs the Arctic ecosystem from local to regional scales due to the impacts on the flow and storage of water and therefore, vegetation and carbon.
A. Hasan +3 more
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Brief communication: Rapid machine-learning-based extraction and measurement of ice wedge polygons in high-resolution digital elevation models [PDF]
The Cryosphere, 2019 We present a workflow for the rapid delineation and microtopographic characterization of ice wedge polygons within high-resolution digital elevation models.
C. J. Abolt +4 more
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Cylindrical wave diffraction by a rational wedge [PDF]
, 1986 In this paper new expressions for the field produced by the diffraction of a cylindrical wave source by a wedge, whose angle can be expressed as a rational multiple of are given.
Rawlins, A D
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Remote Sensing, 2018 Ice-wedge networks underlie polygonal terrain and comprise the most widespread form of massive ground ice in continuous permafrost. Here, we show that climate-driven thaw of hilltop ice-wedge networks is rapidly transforming uplands across Banks Island ...
Robert H. Fraser +5 more
doaj +1 more source
Remote Sensing, 2023 As one of the best indicators of the periglacial environment, ice-wedge polygons (IWPs) are important for arctic landscapes, hydrology, engineering, and ecosystems.
Wenhui Wang +14 more
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Remote Sensing, 2019 Modern degradation of Arctic permafrost promotes changes in tundra landscapes and leads to degradation of ice wedge polygons, which are the most widespread landforms of Arctic wetlands.
Andrei Kartoziia
doaj +1 more source
Dissolved organic carbon loss from Yedoma permafrost amplified by ice wedge thaw [PDF]
, 2013 Pleistocene Yedoma permafrost contains nearly a third of all organic matter (OM) stored in circum-arctic permafrost and is characterized by the presence of massive ice wedges.
Zimov, Nikita +36 more
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, 2020 Detailed calculations of ground-ice volumes in permafrost deposits are necessary to understand and quantify the response of permafrost landscapes to thermal disturbance and thawing.
Strauss, Jens +3 more
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