Buried and Massive Ground Ice on the West Coast of Baidaratskaya Bay in the Kara Sea

Belova, Nataliya

doi:10.15356/2076-6734-2015-2-93-102

Cited by 6 publications

(12 citation statements)

References 9 publications

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“…One of the typical features of permafrost is the presence of abundant massive ground-ice beds in the form of large horizontal ice bodies. The ground-ice outcrops in coastal exposures on the Ural coast of the Baydaratskaya Bay (Belova et al, 2008;Belova, 2015; point 4, Figure 1B), near Marre-Sale station (Tarnogradskiy, 1982;Astakhov et al, 1996;Forman et al, 2002;Kanevskiy et al, 2005;Kritsuk, 2010;Shpolyanskaya, 2015;Streletskaya et al, 2018, etc.; point 3, Figure 1B) and Cape Kharasavey (Belova et al, 2017; point 2, Figure 1B). The presence of similar massive ice beds at the Bovanenkovo gas site, documented by numerous boreholes and outcrops over a large area (Dubikov and Koreisha, 1964;Tarasov, 1990;Solomatin and Koniakhin, 1993;Baulin et al, 1996;Kondakov et al, 2001;Romanenko et al, 2001;Dubikov, 2002;Vasil'chuk et al, 2009;Vasil'chuk, 2012;Fotiev, 2012;Vasil'chuk et al, 2014) provides evidence that massive ice beds are typical for Western Yamal and are present under most of its plains, occasionally outcropping in coastal bluffs or thermocirques.…”

Section: Study Area and Regional Settingmentioning

confidence: 99%

“…The spatial variability of shoreline retreat in the Arctic is determined by coastal morphology, lithology, exposure, ground ice and permafrost properties (Jones et al, 2009;Konopczak et al, 2014;Maslakov and Kraev, 2016;Obu et al, 2016). In the West Siberian Arctic, one of the typical permafrost features is the presence of massive ground-ice beds associated with Late Pleistocene deposits (Streletskaya et al, 2001;Belova, 2015;Vasil'chuk, 2012), large layers of ground-ice inside frozen sediments. Contrary to the East Siberian Arctic, where deposits of the Ice Complex (ice-rich permafrost with numerous ice wedges) compose quickly eroding coastal plains (Lantuit et al, 2012;Günther et al, 2015), massive ice beds are a typical feature of the Yamal and Gydan peninsulas.…”

Section: Introductionmentioning

confidence: 99%

“…Contrary to the East Siberian Arctic, where deposits of the Ice Complex (ice-rich permafrost with numerous ice wedges) compose quickly eroding coastal plains (Lantuit et al, 2012;Günther et al, 2015), massive ice beds are a typical feature of the Yamal and Gydan peninsulas. They are often exposed in coastal bluffs, and their rapid thawing increases rates of retreat of ice-rich segments in comparison with the adjacent areas with little or no ground ice (Belova, 2015). Because of this, they often factor into the development of retrogressive thaw slumps (or thermocirques) (Leibman and Kizyakov, 2007;Lantuit et al, 2012;Khomutovm and Leibman, 2016;Belova et al, 2018) or promote subsidence of coastal plain surface (Lim et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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The Role of Thermal Denudation in Erosion of Ice-Rich Permafrost Coasts in an Enclosed Bay (Gulf of Kruzenstern, Western Yamal, Russia)

et al. 2021

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Coastal erosion in the Arctic has numerous internal and external environmental drivers. Internal drivers include sediment composition, permafrost properties and exposure which contribute to its spatial variability, while changing hydrometeorological conditions act as external drivers and determine the temporal evolution of shoreline retreat. To reveal the relative role of these factors, we investigated patterns of coastal dynamics in an enclosed bay in the southwestern Kara Sea, Russia, namely the Gulf of Kruzenstern, which is protected from open-sea waves by the Sharapovy Koshki Islands. Using multitemporal satellite imagery, we calculated decadal-scale retreat rates for erosional segments of the coastal plain from 1964 to 2019. In the field, we studied and described Quaternary sediments and massive ground-ice beds outcropping in the coastal bluffs. Using data from regional hydrometeorological stations and climate reanalysis (ERA), we estimated changes in the air thawing index, sea ice-free period duration, wind-wave energy and total hydrometeorological stress for the Gulf of Kruzenstern, and compared it to Kharasavey and Marre-Sale open-sea segments north and south of the gulf to understand how the hydrometeorological forcing changes in an enclosed bay. The calculated average shoreline retreat rates along the Gulf in 1964–2010 were 0.5 ± 0.2 m yr−1; the highest erosion of up to 1.7 ± 0.2 m yr−1 was typical for segments containing outcrops of massive ground-ice beds and facing to the northwest. These retreat rates, driven by intensive thermal denudation, are comparable to long-term rates measured along open-sea sites known from literature. As a result of recent air temperature and sea ice-free period increases, average erosion rates rose to 0.9 ± 0.7 m yr−1 in 2010–2019, with extremes of up to 2.4 ± 0.7 m yr−1. The increased mean decadal-scale erosion rates were also associated with higher spatial variability in erosion patterns. Analysis of the air thawing index, wave energy potential and their total effect showed that inside the Gulf of Kruzenstern, 85% of coastal erosion is attributable to thermal denudation associated with the air thawing index, if we suppose that at open-sea locations, the input of wave energy and air thawing index is equal. Our findings highlight the importance of permafrost degradation and thermal denudation on increases in ice-rich permafrost bluff erosion in the Arctic.

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Section: Study Area and Regional Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Role of Thermal Denudation in Erosion of Ice-Rich Permafrost Coasts in an Enclosed Bay (Gulf of Kruzenstern, Western Yamal, Russia)

et al. 2021

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“…Areas with buried glacier ice are also becoming increasingly vulnerable to climate warming (Kokelj et al, 2017). Glacier ice is the most common type of buried ice in permafrost and its occurrence was reported in Russia (Astakhov, 1986;Belova et al, 2008;Ingólfsson and Lokrantz, 2003;Kaplanskaya and Tarnogradskiy, 1986;Solomatin, 1986), the Canadian Arctic (Dallimore and Wolfe, 1988;French and Harry, 1990), Alaska (Jorgenson and Shur, 2008;Kanevskiy et al, 2013) and Antarctica (Sugden et al, 1995;Swanger, 2017). Buried glacier ice has been commonly observed in the proglacial zone of contemporary glaciers and can be preserved in formerly glaciated areas (the paraglacial to periglacial zones) within large moraine belts, hummocky till and glaciofluvial deposits (Everest and Bradwell, 2003;Tonkin et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Basal ice has distinctive physical and chemical characteristics and has a much higher debris content than the overlying englacial ice as a result of subglacial processes operating at the glacier bed: regelation, glaciohydraulic supercooling accretion, net basal adfreezing, incorporation of ice and sediments by overriding ice during glacier advance, glacio-tectonics, ice lens aggradation and downward propagation of cold temperature in the sediment at the glacier bed (congelation) (Alley et al, 1998;Fortier et al, 2012;Hubbard and Sharp, 1995;Knight, 1997;Lawson, 1979;Sharp et al, 1994). Both types of glacier ice may experience burial but basal ice is probably the most common form of buried glacier ice according to reports from various circumpolar permafrost regions (Belova et al, 2008;Fritz et al, 2011;St-Onge and McMartin, 1999). The process of burial of glacier ice has been described by Shur (1988), Solomatin (1986), Harris and Murton (2005) and citations therein.…”

Section: Introductionmentioning

confidence: 99%

Origin, burial and preservation of late Pleistocene-age glacier ice in Arctic permafrost (Bylot Island, NU, Canada)

Coulombe¹,

Fortier²,

Lacelle³

et al. 2018

Preprint

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Abstract. Over the past decades, observations of buried glacier ice exposed in coastal bluffs and headwalls of retrogressive thaw slumps of the Arctic indicate that considerable amounts of Pleistocene glacier ice survived the deglaciation and are still preserved in permafrost. In exposures, relict glacier ice and intrasedimental ice often coexist and look alike but their genesis is strikingly different. Identifying the origin of ground ice is required to model its spatial distribution and abundance, which is necessary to model the response of circumpolar permafrost regions to climate change. This paper aims to present a detailed description and report physical and geochemical properties of glacier ice buried in the permafrost of Bylot Island (Nunavut) as well as identify geomorphic processes that led to the burial and preservation of the ice. The massive ice exposure and core samples were described according to the cryostratigraphic approach, combining the analysis of permafrost cryofacies and cryostructures, ice crystallography, stable O-H isotopes and cation contents. The buried glacier ice consisted of clear to whitish englacial ice having large crystals (cm) and small gas inclusions (mm) at crystal intersections, similar to observations of englacial ice facies commonly found on contemporary glaciers and ice sheets. However, the isotopic composition of the buried ice differed markedly from contemporary glacier ice and indicated the late Pleistocene age of the ice. This ice predates the aggradation of the permafrost and can be used as an archive to infer paleo-environmental conditions at the study site. As most of the arctic landscapes are still strongly determined by its glacial legacy, the melting of these large ice bodies could lead to extensive slope failures and settlement of the ground surface, with significant impact on permafrost geosystem landscape dynamics, terrestrial and aquatic ecosystems, and infrastructure.

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Monitoring of the Thermoabrasional and Accumulative Coasts Near the Underwater Gas Pipeline Route Across the Baydaratskaya Bay, Kara Sea

Belova

Baranskaya

Kokin

et al. 2017

Proceedings of International Conference "Managinag Risks to Coastal Regions and Communities in a Changinag World" (EMECS'11 - S

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The coasts of Baydaratskaya Bay are composed by loose frozen sediments. At Yamal Peninsula accumulative coasts are predominant at the site where pipeline crosses the coast, while thermoabrasional coast are prevail at the Ural coast crossing site. Coastal dynamics monitoring on both sites is conducted using field and remote methods starting from the end of 1980s. As a result of construction in the coastal zone the relief morphology was disturbed, both lithodynamics and thermal regime of the permafrost within the areas of several km around the sites where gas pipeline crosses coastline was changed. At Yamal coast massive removal of deposits from the beach and tideflat took place. The morphology of barrier beach, which previously was a natural wave energy dissipater, was disturbed. This promoted inland penetration of storm surges and permafrost degradation under the barrier beach. At Ural coast the topsoil was disrupted by construction trucks, which affected thermal regime of the upper part of permafrost and lead to active layer deepening. Thermoerosion and thermoabrasion processes have activated on coasts, especially at areas with icy sediments, ice wedges and massive ice beds. Construction of cofferdams resulted in overlapping of sediments transit on both coasts and caused sediment deficit on nearby nearshore zone areas. The result of technogenic disturbances was widespread coastal erosion activation, which catastrophic scale is facilitated by climate warming in the Arctic.

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Buried and Massive Ground Ice on the West Coast of Baidaratskaya Bay in the Kara Sea

Cited by 6 publications

References 9 publications

The Role of Thermal Denudation in Erosion of Ice-Rich Permafrost Coasts in an Enclosed Bay (Gulf of Kruzenstern, Western Yamal, Russia)

The Role of Thermal Denudation in Erosion of Ice-Rich Permafrost Coasts in an Enclosed Bay (Gulf of Kruzenstern, Western Yamal, Russia)

Origin, burial and preservation of late Pleistocene-age glacier ice in Arctic permafrost (Bylot Island, NU, Canada)

Monitoring of the Thermoabrasional and Accumulative Coasts Near the Underwater Gas Pipeline Route Across the Baydaratskaya Bay, Kara Sea

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