Late Pleistocene and Holocene history of Lake Terrasovoje, Amery Oasis, East Antarctica, and its climatic and environmental implications

Wagner, Bernd; Cremer, Holger; Hultzsch, Nadja; Gore, Damian B.; Melles, Martin

doi:10.1007/s10933-004-0143-8

Cited by 61 publications

(40 citation statements)

References 67 publications

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“…Phartiyal (2014) marked Phase 5 as a comparatively overall arid and cold period from 8.7 to 4.4 ka. However, Wagner et al (2004) reported a short cooling event from 6.7 to 3.7 ka BP in Amery Oasis just after the major early Holocene warm period. In Vestfold Hills region, a periodic warming and cooling alternation has been observed during 8.5-5.5 ka BP and 5.5-5.0 ka BP, respectively (Gibson unpublished results in Verleyen et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Paleoenvironments of a proglacial lake in Schirmacher Oasis, East Antarctica: Insights from quartz grain microtextures

Mazumder¹,

Govil²,

Kar³

et al. 2017

Polish Polar Research

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This paper provides an overview of the results of research on changes in ground temperature down to 50 cm depth, on the Kaffiøyra Plain, Spitsbergen in the summer seasons. To achieve this, measurement data were analysed from three different ecotopes (CALM Site P2A, P2B and P2C) -a beach, a moraine and tundra -collected during 22 polar expeditions between 1975 and 2014. To ensure comparability, data sets for the common period from 21 July to 31 August (referred to as the "summer season" further in the text) were analysed. The greatest influence on temperature across the inves− tigated ground layers comes from air temperature (correlation coefficients ranging from 0.61 to 0.84). For the purpose of the analysis of the changes in ground temperature in the years 1975-2014, missing data for certain summer seasons were reconstructed on the ba− sis of similar data from a meteorological station at Ny−Ålesund. The ground temperature at the Beach site demonstrated a statistically−significant growing trend: at depths from 1 to 10 cm the temperature increased by 0.27-0.28°C per decade, and from 20 to 50 cm by as much as 0.30°C per decade. On the Kaffiøyra Plain, the North Atlantic Oscillation (NAO) has a greater influence on the ground and air temperature than the Arctic Oscilla− tion (AO).

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Section: Discussionmentioning

confidence: 99%

Paleoenvironments of a proglacial lake in Schirmacher Oasis, East Antarctica: Insights from quartz grain microtextures

Mazumder¹,

Govil²,

Kar³

et al. 2017

Polish Polar Research

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“…Minor variations in the vertical hydrological profiles reveal that Radok Lake was completely mixed in January 2002 and confirm earlier observations (Wand et al 1987;Adamson et al 1997). Low conductivities and ion concentrations are caused by the supply of ion depleted meltwater from Battye Glacier and the surrounding slopes.…”

Section: Limnologysupporting

confidence: 85%

“…Measurements of the water depth by leadline revealed a minimum water depth of ca. 360 m (Wand et al 1987;Wagner 2003). The lake is located at an elevation of 7 m a.s.l.…”

Section: Introductionmentioning

confidence: 99%

“…At the southwestern corner Battye Glacier enters Radok Lake forming a floating ice tongue. Meltwater supply from the glacier, the melt stream from Glossopteris Gully (Adamson et al 1997) and to a lesser degree from the surrounding slopes feeds the lake during summer (Wand et al 1987). The lake outlet is formed by the deeply incised Pagodroma Gorge that leads into Beaver Lake, an epishelf lake that is hydrologically connected to the ocean underneath Amery Ice Shelf .…”

Section: Introductionmentioning

confidence: 99%

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Limnology and Sedimentary Record of Radok Lake, Amery Oasis, East Antarctica

Wagner

Cremer

Antarctica

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Abstract. Radok Lake in Amery Oasis, East Antarctica, has a water depth of ca. 360 m, making it the deepest non-subglacial lake in Antarctica. Limnological analyses revealed that the lake had, despite a 3 m thick ice cover, a completely mixed water column during austral summer 2001/2002. High oxygen contents, low ion concentrations, and lack of planktonic diatoms throughout the water column indicate that Radok Lake is ultraoligotrophic today.The late glacial and postglacial lake history is documented in a succession of glacial, glaciolimnic, and limnic sediments at different locations in the lake basin. The sediments record regional differences and past changes in allochthonous sediment supply and lake productivity. However, the lack of age control on these changes, due to extensive sediment redeposition and the lack of applicable dating methods, excluded Radok Lake sediments for advanced paleoenvironmental reconstructions.

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“…Tardigrade eggs in Antarctic lake sediments 67 coastline (Wagner et al 2004). The Amery Oasis has been in part ice-free for up to 2 Ma (Fink et al 2006), and is much older than the Vestfold or Larsemann Hills.…”

Section: Fig 1 Map Of Antarctica Showing the Locations Of The Lakesmentioning

confidence: 99%

Tardigrade eggs and exuviae in Antarctic lake sediments: insights into Holocene dynamics and origins of the fauna

Gibson¹,

Cromer²,

Agius³

et al. 2007

J Limnol

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Late Pleistocene and Holocene history of Lake Terrasovoje, Amery Oasis, East Antarctica, and its climatic and environmental implications

Cited by 61 publications

References 67 publications

Paleoenvironments of a proglacial lake in Schirmacher Oasis, East Antarctica: Insights from quartz grain microtextures

Paleoenvironments of a proglacial lake in Schirmacher Oasis, East Antarctica: Insights from quartz grain microtextures

Limnology and Sedimentary Record of Radok Lake, Amery Oasis, East Antarctica

Tardigrade eggs and exuviae in Antarctic lake sediments: insights into Holocene dynamics and origins of the fauna

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