Results 191 to 200 of about 1,136,547 (231)
Ice Volumes in Permafrost Landscapes of Arctic Yakutia
Land, 2022 This article is devoted to the study of the distribution of ground ice volumes in the upper layers of 5–10 m permafrost in the permafrost landscapes of Arctic Yakutia. Compilation of such a map will serve as a basis for assessing the vulnerability of permafrost to global warming, anthropogenic impact and forecasting the evolution of permafrost ...
Alexander N Fedorov +2 more
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Remote Sensing of Landscape Change in Permafrost Regions
Permafrost and Periglacial Processes, 2016 Abstract Amplification of global warming in Arctic and boreal regions is causing significant changes to permafrost‐affected landscapes. The nature and extent of the change is complicated by ecological responses that take place across strong gradients in environmental conditions and disturbance regimes.
Guido Grosse
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Current State of Permafrost Landscapes of the Prilensky Plateau
Geoinformatika, 2023The article presents the results of studying the structure of permafrost landscapes in the area of discontinuous distribution of permafrost soils in large-scale mapping. The actual material was collected by the authors in the course of research and field work on the Power of Siberia project.
Nikolai A. Fedorov, Aliona A. Shestakova
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Threshold loss of discontinuous permafrost and landscape evolution
Global Change Biology, 2016AbstractThis study demonstrates linkages between the 1997/1998 El Niño/Southern Oscillation index and a threshold shift to increased permafrost loss within a southern Taiga Plains watershed, Northwest Territories, Canada. Three‐dimensional contraction of permafrost plateaus and changes in vegetation structural characteristics are determined from ...
Laura, Chasmer, Chris, Hopkinson
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Mountain Permafrost Landscapes of Yakutia
Geography and Natural Resources, 2009Abstract An analysis is made of the spectrum of altitudinal zonality of mountain permafrost landscapes of Yakutia. The intervals of the values of characteristics of particular landscape altitudinal zones are provided, namely, the marks of their boundaries in accordance with a change in the latitude of the locality, the indices of freezing and thawing,
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Drivers of fish biodiversity in a rapidly changing permafrost landscape
Freshwater Biology, 2021Abstract Rapid environmental change occurring in northern permafrost regions may have profound implications for fish biodiversity but remains poorly understood. Climate change, increasing human development, and resultant permafrost thaw may combine to alter the quality and quantity of fish habitat including reductions in preferred thermal habitat ...
Alyssa Murdoch +5 more
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Airborne Bacteria over Thawing Permafrost Landscapes in the Arctic
Environmental Science & TechnologyRapid warming in the Arctic, outpacing global rates, is driving significant changes in cryospheric landscapes, including the release of long-preserved microorganisms. This study focuses on thawing permafrost in Northern Alaska, where microbes previously preserved in frozen soils are introduced into thermokarst lakes, rivers, and coastal waters and may ...
Marina Nieto-Caballero +6 more
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Climate and Hydrogeological Controls on Water Tracks in Permafrost Landscapes
Reviews of GeophysicsAbstractClimate change drives disturbance in hydrology and geomorphology in terrestrial polar landscapes underlain by permafrost, yet measurements of, and theories to understand, these changes are limited. Water flowing from permafrost hillslopes to channels is often modulated by water tracks, zones of enhanced soil moisture in unchannelized ...
Sarah G. Evans, Joanmarie del Vecchio
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The Mackenzie Delta: An Archetypal Permafrost Landscape
2009The Mackenzie Delta, in Canada’s western Arctic, is North America’s largest arctic delta. For over half the year the rivers and lakes of this vast alluvial plain are ice covered. Permafrost is ubiquitous in the delta and the surrounding landscape. Treeline traverses the delta, separating closed-canopy white spruce forests in southern parts from low ...
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