Late Holocene thermokarst variability inferred from diatoms in a lake sediment record from the Lena Delta, Siberian Arctic

Biskaborn, Boris K.; Herzschuh, Ulrike; Bolshiyanov, Dimitry Yu; Savelieva, Larissa A; Zibulski, Romy; Diekmann, Bernhard

doi:10.1007/s10933-012-9650-1

Cited by 54 publications

(44 citation statements)

References 55 publications

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“…Lake bathymetry can also vary significantly within a lake, related to (1) spatial variability in ice content and associated differential subsidence rates, (2) restriction of talik development within unfrozen areas during winter, and (3) spatial differences in sedimentation rates associated with river input and permafrost-specific processes such as thaw slumping. Yedoma thermokarst lakes generally penetrate directly into the surrounding ice complex often surrounded by steep slopes, thermo-erosion gullies, and retrogressive thaw slumps associated with alluvial fans (Biskaborn et al 2013a(Biskaborn et al , 2013b.…”

Section: Lena Delta Transect Northeastern Siberiamentioning

confidence: 99%

“…Such a southward delay in HTM onset appeared to be up to 3000 years, although the termination of the HTM is still under debate. Based on bio-and lithostratigraphic reconstructions, Biskaborn et al (2012Biskaborn et al ( , 2013aBiskaborn et al ( , 2016 reported that climate warming in the Lena Delta hinterland caused major changes in aquatic ecosystems (e.g., decrease in lake-ice cover extent and duration, decrease in alkalinity, increase in habitat availability). Furthermore, these studies demonstrated that use of bio-indicators for climate reconstruction requires differentiation between summer and winter seasons.…”

Section: Lena Delta Transect Northeastern Siberiamentioning

confidence: 99%

“…For example, drainage processes associated with lakeshore thermoerosion in northwestern Lena Delta caused strong fluctuations in water level, changing the abiotic and biotic lake status. Dramatic short-term lake level shifts were evidenced by changes in fossil diatom species assemblages around 1300 cal yr BP (Biskaborn et al 2013a). In a thermokarst setting within ice-rich Yedoma, Biskaborn et al (2013b) tracked block failure events from retrogressive thaw slumping in sediment cores from Lake El'gene Kyuele using end-member modeling of grain size and elemental composition.…”

Section: Lena Delta Transect Northeastern Siberiamentioning

confidence: 99%

“…These factors, as well as the often-brief existence and remoteness of thermokarst lakes, likely account for the relatively poor representation of thermokarst lake sedimentary records in the "northern paleolimnology" literature (Pienitz et al 2004;MacDonald et al 2012). A survey of papers published in the Journal of Paleolimnology during the past three decades produced only three papers upon searching the term "thermokarst lake" (Dallimore et al 2000;Biskaborn et al 2013a;Frolova et al 2014). Evidently, these waterbodies remain virtually untapped for their paleolimnological potential, yet these shallow systems offer advantages for paleoenvironmental reconstructions in northern regions.…”

Section: Introductionmentioning

confidence: 99%

“…This includes documenting terrestrial vegetation change, transport of dissolved organic matter related to the thawing of peat-rich permafrost, and lake expansion and subsequent drainage caused by increased summer rainfall (e.g., Bouchard et al 2011Bouchard et al , 2013aBouchard et al , 2014MacDonald et al 2012;Coleman et al 2015). Yet, some thermokarst lakes have persisted for several thousand years, spanning the Holocene and beyond, and their sediment records have yielded temporal information about the succession of cool and warm climate episodes, influence of thermokarst activity on sediment input to lakes, and carbon exchange with the atmosphere (e.g., Dallimore et al 2000;Biskaborn et al 2012Biskaborn et al , 2013aLenz et al 2013Lenz et al , 2016Walter Anthony et al 2014;Edwards et al 2016). Thus, sediments that accumulate in thermokarst lakes provide promising archives to examine a multitude of environmental changes, including temporal insights into permafrost landscape evolution.…”

Section: Introductionmentioning

confidence: 99%

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Paleolimnology of thermokarst lakes: a window into permafrost landscape evolution

et al. 2017

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Widespread across northern permafrost landscapes, thermokarst ponds and lakes provide vital wildlife habitat and play a key role in biogeochemical processes. Stored in the sediments of these typically shallow and dynamic waterbodies are rich sources of paleoenvironmental information whose potential has not yet been fully exploited, likely because of concerns over stratigraphic preservation and challenges to develop reliable sediment core chronologies. Here, we present an overview of recently derived informative paleolimnological reconstructions based on multiparameter analysis of sediment archives from permafrost aquatic basins. We include examples from across the Canadian North, Alaska, and Siberia that illustrate their value for providing insights into temporal patterns of lake inception, catchment erosion, aquatic productivity, hydrological evolution, and landscape disturbances. Although not captured in our survey, emerging research directions focused on carbon accumulation, storage, and balance hold much promise for contributing to global climate change science.Key words: thermokarst lakes, permafrost, paleolimnology, lake sediments.Résumé : Répandus d'un paysage de pergélisol septentrional à l'autre, les étangs et les lacs thermokarstiques fournissent un habitat essentiel à la faune et jouent un rôle clé dans les processus biogéochimiques. Accumulées dans les sédiments de ces plans d'eau typiquement peu profonds et dynamiques se trouvent des sources riches en informations paléoenvironne-mentales dont le potentiel n'a pas encore été entièrement exploité, probablement à cause des préoccupations concernant la conservation stratigraphique et les défis de développer des chronologies fiables à partir des carottes sédimentaires. Ici, nous présentons une vue d'ensemble des reconstitutions paléolimnologiques informatives récemment dérivées d'après l'analyse multi paramétrée d'archives de sédiments des bassins aquatiques du pergé-lisol. Nous incluons des exemples provenant du Nord canadien, de l'Alaska et de la Sibérie qui For personal use only.illustrent que ceux-ci peuvent offrir des perspectives sur les tendances temporelles de création de lacs, de l'érosion de bassins versants, de la productivité aquatique, de l'évolution hydrologique et des perturbations du paysage. Bien que non mises en lumière dans notre enquête, les directions de recherche émergentes centrées sur l'accumulation, le stockage et le bilan carbone s'annoncent bien quant à leur contribution à la science du changement climatique mondial.

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Section: Lena Delta Transect Northeastern Siberiamentioning

confidence: 99%

Section: Lena Delta Transect Northeastern Siberiamentioning

confidence: 99%

Section: Lena Delta Transect Northeastern Siberiamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Paleolimnology of thermokarst lakes: a window into permafrost landscape evolution

et al. 2017

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The potential of multispectral imaging flow cytometry for environmental monitoring

et al. 2022

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Environmental monitoring involves the quantification of microscopic cells and particles such as algae, plant cells, pollen, or fungal spores. Traditional methods using conventional microscopy require expert knowledge, are time‐intensive and not well‐suited for automated high throughput. Multispectral imaging flow cytometry (MIFC) allows measurement of up to 5000 particles per second from a fluid suspension and can simultaneously capture up to 12 images of every single particle for brightfield and different spectral ranges, with up to 60x magnification. The high throughput of MIFC has high potential for increasing the amount and accuracy of environmental monitoring, such as for plant‐pollinator interactions, fossil samples, air, water or food quality that currently rely on manual microscopic methods. Automated recognition of particles and cells is also possible, when MIFC is combined with deep‐learning computational techniques. Furthermore, various fluorescence dyes can be used to stain specific parts of the cell to highlight physiological and chemical features including: vitality of pollen or algae, allergen content of individual pollen, surface chemical composition (carbohydrate coating) of cells, DNA‐ or enzyme‐activity staining. Here, we outline the great potential for MIFC in environmental research for a variety of research fields and focal organisms. In addition, we provide best practice recommendations.

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Thermokarst Processes and Depositional Events in a Tundra Lake, Northeastern Siberia

Biskaborn

Herzschuh

Bolshiyanov

et al. 2013

Permafrost & Periglacial

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The relationships between thermokarst activity, limnogeological processes and climate change in the Siberian Arctic are not well understood. The objective of this paper is to identify the factors controlling the patterns of deposition, using grain size distribution, organic content, elemental composition and mineralogical composition of a 137-cm long sediment core with a maximum age of~10.9 cal. kyr BP from Lake El'gene-Kyuele in the tundra of northeastern Siberia. Eight fine sand layers are attributed to depositional events associated with thaw slump activity acting upon orthogonally oriented patterns of ice-wedge networks in the ice-rich permafrost on the NW margin of the lake catchment. Sr/Rb ratios, which correspond to the total feldspar and illite content, serve as high-resolution grain size proxies. The Br content relates to the total organic carbon content, and the Fe/Mn ratio reflects the degree of oxidisation. Our results indicate a relationship between repeated phases of fine sand input and retrogressive thaw slumping dependent on hydroclimate variability and orthogonally oriented ice-wedge networks within the catchment.

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Late Holocene thermokarst variability inferred from diatoms in a lake sediment record from the Lena Delta, Siberian Arctic

Cited by 54 publications

References 55 publications

Paleolimnology of thermokarst lakes: a window into permafrost landscape evolution

Paleolimnology of thermokarst lakes: a window into permafrost landscape evolution

The potential of multispectral imaging flow cytometry for environmental monitoring

Thermokarst Processes and Depositional Events in a Tundra Lake, Northeastern Siberia

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