Results 21 to 30 of about 3,194 (298)

Last glacial ice sheet dynamics offshore NE Greenland – a case study from Store Koldewey Trough [PDF]

open access: yesThe Cryosphere, 2020
The presence of a grounded Greenland Ice Sheet on the northeastern part of the Greenland continental shelf during the Last Glacial Maximum is supported by new swath bathymetry and high-resolution seismic data, supplemented with multi-proxy analyses of ...
I. L. Olsen   +4 more
doaj   +1 more source

Reconstruction of average January temperatures during the early Holocene in the North-East of the Bolshezemelskaya tundra

open access: yesЛëд и снег, 2020
The aim of the study was to establish the period of accumulation of peatland with ice wedges near Vorkuta town based on series of calibrated radiocarbon dates, to anchor in time the isotope-oxygen curve of syngenetic ice wedge from peatland and to ...
N. A. Budantseva, Yu. K. Vasil'chuk
doaj   +1 more source

Reconstruction of the mean January air temperature in the Early Holocene on the eastern coast of Chukotka

open access: yesЛëд и снег, 2023
The investigation is concerned with the Early Holocene syngenetic massive wedge ice exposed in the outcrop of a polygonal peatland in the upper part of the third marine terrace near Lorino settlement on the eastern coast of Chukotka.
N. A. Budantseva   +4 more
doaj   +1 more source

Winter air temperature in Holocene reconstructed from the ice wedges stable water isotopes near Anadyr town [PDF]

open access: yes, 2020
The object of research is syncryogenic Holocene strata on the coast of the Onemen Bay, 2 km from the town of Anadyr. In July 2017, the outcrop of the first marine terrace uncovered by strong storms was examined.
Vasil'chuk, Yurij K   +1 more
core   +1 more source

Hydrochemistry of Holocene ice wedge near Anadyr [PDF]

open access: yes, 2021
In recent research the Holocene ice wedges exposed in the outcrop of the first marine terrace near Anadyr in the east of the Chukchi Peninsula have been investigated. The first marine terrace has polygonal relief, the size of the polygons is about 8x12 m.
Vasil'chuk, Yurij K   +1 more
core   +1 more source

Isotopic composition on ground ice in Western Yamal (Marre-Sale)

open access: yesЛëд и снег, 2015
The profile of Quaternary sediments near Marre-Salle polar station, Western Yamal Peninsula, has large bodies of tabular ground ice. This profile is considered strata-typical and critical in understanding of paleogeographic conditions of the Arctic in ...
I. D. Streletskaya   +3 more
doaj   +1 more source

Microtopographic control on the ground thermal regime in ice wedge polygons [PDF]

open access: yesThe Cryosphere, 2018
The goal of this research is to constrain the influence of ice wedge polygon microtopography on near-surface ground temperatures. Ice wedge polygon microtopography is prone to rapid deformation in a changing climate, and cracking in the ice wedge ...
C. J. Abolt   +4 more
doaj   +1 more source

Ice-creams and wedge graphs

open access: yesComputational Geometry, 2013
What is the minimum angle $α>0$ such that given any set of $α$-directional antennas (that is, antennas each of which can communicate along a wedge of angle $α$), one can always assign a direction to each antenna such that the resulting communication graph is connected?
Eyal Ackerman   +2 more
openaire   +2 more sources

δ¹⁸O in ice wedges, ice lenses and snow from Kular, Yakutia (Russia) [PDF]

open access: yes, 2020
Variations of δ¹⁸О in Late Pleistocene ice wedges, in structure-forming ice and segregated ice lenses, as well as in snow and water of Burguat River were determined.
Vasil'chuk, Yurij K   +1 more
core   +1 more source

A Quantitative Graph-Based Approach to Monitoring Ice-Wedge Trough Dynamics in Polygonal Permafrost Landscapes

open access: yesRemote Sensing, 2021
In response to increasing Arctic temperatures, ice-rich permafrost landscapes are undergoing rapid changes. In permafrost lowlands, polygonal ice wedges are especially prone to degradation.
Tabea Rettelbach   +6 more
doaj   +1 more source

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