Short-term dynamics of a low-centred ice-wedge polygon near Chokurdakh (NE Yakutia, NE Siberia) and climate change during the last ca 1250 years

Klerk, Pim de; Donner, Norman; Karpov, Nikolay S.; Minke, Merten; Joosten, Hans

doi:10.1016/j.quascirev.2011.06.016

Cited by 42 publications

(73 citation statements)

References 84 publications

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“…The Lena River Delta in Northern Yakutia is the largest delta in the Arctic and its catchment area (2 430 000 km 2 ) is one of the largest in the whole of Eurasia (Costard and Gautier, 2007). The Lena River distributes water and sediment in the four main channels (Olenekskaya, Tumatskaya, Bykovskaya, Trofimovskaya) before discharging in total about 30 km 3 of water through the delta into the Arctic Ocean every year (Fedorova et al, 2012), and its discharge has been observed to be increasing (Rawlins et al, 2009b).…”

Section: Site Description and Data Collection Facilities At The New Smentioning

confidence: 99%

“…Model biases exist regarding regional and local surface water balances (Kattsov et al, 2007). Moreover, these models do not take into account subscale patterns and processes such as the spatiotemporal dynamics of low-centred ice-wedge polygons (de Klerk et al, 2011), or present-day land surface changes such as thermokarst lake formation (Jorgenson and Shur, 2007), increases in shrub cover (Sturm et al, 2001;Hinzman et al, 2005), prolongation of the snow-free season , and changes in the surface water balance (Hinzman et al, 2005).…”

Section: Hydrosphere: Thermal Characteristics Of Ponds and Thermokarsmentioning

confidence: 99%

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Baseline characteristics of climate, permafrost and land cover from a new permafrost observatory in the Lena River Delta, Siberia (1998–2011)

et al. 2013

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Abstract. Samoylov Island is centrally located within the Lena River Delta at 72° N, 126° E and lies within the Siberian zone of continuous permafrost. The landscape on Samoylov Island consists mainly of late Holocene river terraces with polygonal tundra, ponds and lakes, and an active floodplain. The island has been the focus of numerous multidisciplinary studies since 1993, which have focused on climate, land cover, ecology, hydrology, permafrost and limnology. This paper aims to provide a framework for future studies by describing the characteristics of the island's meteorological parameters (temperature, radiation and snow cover), soil temperature, and soil moisture. The land surface characteristics have been described using high resolution aerial images in combination with data from ground-based observations. Of note is that deeper permafrost temperatures have increased between 0.3 to 1.3 °C over the last five years. However, no clear warming of air and active layer temperatures is detected since 1998, though winter air temperatures during recent years have not been as cold as in earlier years. Data related to this article are archived under: http://doi. pangaea.de/10.1594/PANGAEA.806233 .

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Section: Site Description and Data Collection Facilities At The New Smentioning

confidence: 99%

Section: Hydrosphere: Thermal Characteristics Of Ponds and Thermokarsmentioning

confidence: 99%

Baseline characteristics of climate, permafrost and land cover from a new permafrost observatory in the Lena River Delta, Siberia (1998–2011)

et al. 2013

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“…1d). The method of surveying ice-wedge polygons in high spatial resolution was adapted from de Klerk et al (2009) and Minke et al (2009). Transects of 1)1 m plots were laid through Herschel, Komakuk and Roland polygons (Fig.…”

Section: Fieldworkmentioning

confidence: 99%

“…The complex relationships between vegetation and polygon mire development have been studied locally in very few places in the circumpolar Arctic (Ellis et al 2008;de Klerk et al 2011;Zibulski et al 2013;de Klerk et al 2014;Fritz et al 2016) and are still poorly understood. There is little information available on environmental constraints to shrub composition in polygon mires.…”

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confidence: 99%

Vegetation composition and shrub extent on the Yukon coast, Canada, are strongly linked to ice-wedge polygon degradation

et al. 2016

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“…A number of paleoenvironmental reconstructions from NE Siberian permafrost employ late Pleistocene and Holocene IWP deposits (e.g. Andreev et al, 2011;De Klerk et al, 2011;Wetterich et al, 2014) to reconstruct longterm environmental history and to develop an understanding of IWP formation and degradation. North American studies on IWPs focus mainly on postglacial deposits, because of the regional Quaternary history (Ovenden, 1982;Vardy et al, 1997Vardy et al, , 1998Vardy et al, , 2005Eisner and Peterson, 1998a,b;Eisner et al, 2005).…”

Section: Ice-wedge-polygon (Iwp) Developmentmentioning

confidence: 99%

Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada)

Fritz

Wolter

Rudaya

et al. 2016

Quaternary Science Reviews

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a b s t r a c tIce-wedge polygon (IWP) peatlands in the Arctic and Subarctic are extremely vulnerable to climatic and environmental change. We present the results of a multidisciplinary paleoenvironmental study on IWPs in the northern Yukon, Canada. High-resolution laboratory analyses were carried out on a permafrost core and the overlying seasonally thawed (active) layer, from an IWP located in a drained lake basin on Herschel Island. In relation to 14 Accelerator Mass Spectrometry (AMS) radiocarbon dates spanning the last 5000 years, we report sedimentary data including grain size distribution and biogeochemical parameters (organic carbon, nitrogen, C/N ratio, d 13 C), stable water isotopes (d 18 O, dD), as well as fossil pollen, plant macrofossil and diatom assemblages. Three sediment units (SUs) correspond to the main stages of deposition (1) in a thermokarst lake (SU1: 4950 to 3950 cal yrs BP), (2) during transition from lacustrine to palustrine conditions after lake drainage (SU2: 3950 to 3120 cal yrs BP), and (3) in palustrine conditions of the IWP field that developed after drainage (SU3: 3120 cal yrs BP to 2012 CE). The lacustrine phase (pre 3950 cal yrs BP) is characterized by planktonic-benthic and pioneer diatom species indicating circumneutral waters, and very few plant macrofossils. The pollen record has captured a regional signal of relatively stable vegetation composition and climate for the lacustrine stage of the record until 3950 cal yrs BP. Palustrine conditions with benthic and acidophilic diatom species characterize the peaty shallow-water environments of the low-centered IWP. The transition from lacustrine to palustrine conditions was accompanied by acidification and rapid revegetation of the lake bottom within about 100 years. Since the palustrine phase we consider the pollen record as a local vegetation proxy dominated by the plant communities growing in the IWP. Ice-wedge cracking in water-saturated sediments started immediately after lake drainage at about 3950 cal yrs BP and led to the formation of an IWP mire. Permafrost aggradation through downward closed-system freezing of the lake talik is indicated by the stable water isotope record. The originally submerged IWP center underwent gradual drying during the past 2000 years. This study highlights the sensitivity of permafrost landscapes to climate and environmental change throughout the Holocene.

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Short-term dynamics of a low-centred ice-wedge polygon near Chokurdakh (NE Yakutia, NE Siberia) and climate change during the last ca 1250 years

Cited by 42 publications

References 84 publications

Baseline characteristics of climate, permafrost and land cover from a new permafrost observatory in the Lena River Delta, Siberia (1998–2011)

Baseline characteristics of climate, permafrost and land cover from a new permafrost observatory in the Lena River Delta, Siberia (1998–2011)

Vegetation composition and shrub extent on the Yukon coast, Canada, are strongly linked to ice-wedge polygon degradation

Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada)

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