A 750 year ice core record of past biogenic emissions from Siberian boreal forests

Eichler, Anja; Brütsch, Sabina; Olivier, Susanne; Papina, Tatyana; Schwikowski, Margit

doi:10.1029/2009gl038807

Cited by 50 publications

(83 citation statements)

References 35 publications

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“…The obtained source regions of the biological species are in good agreement with back trajectory analyses and emission source regions of the trace elements in the ice core (e.g., Eichler et al, 2009bEichler et al, , 2012.…”

Section: Discussionsupporting

confidence: 64%

“…Ice cores from glaciers in the Altai Mountains have been proven to be invaluable archives of past eastern European air pollution Eichler et al, 2012), temperature changes in Siberia Eichler et al, 2009a;Okamoto, 2011) and variations in forest-fire activity and biogenic emissions from Siberian boreal forests (Eichler et al, 2009b(Eichler et al, , 2011. In the Altai region, glaciers are located above the tree line and the zone of alpine vegetation in the nival-glacial belt (Galakhov and Mukhametov, 1999); therefore all biological species found in glacial ice originated in other areas.…”

Section: T Papina Et Al: Biological Proxies Recorded In a Belukha Imentioning

confidence: 99%

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Biological proxies recorded in a Belukha ice core, Russian Altai

et al. 2013

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Abstract. Different biological proxies such as pollen, cysts, and diatoms were identified and quantified in the upper part of a Belukha ice core from the Russian Altai. The ice core from the Belukha glacier collected in 2001 (4062 m a.s.l., 49 • 48 N, 86 • 34 E) was analyzed with annual resolution in the period . Daily data of the frequency of synoptic patterns observed in the Northern Hemisphere along with daily data of precipitation have been used to identify the predominant atmospheric circulations (elementary circulating mechanisms, or ECMs) generating the entry of biological proxies on the glacier surface. It was shown that the high-resolution records of diatoms, cysts, spores, and plant pollen in the Belukha ice core are the biological proxies for the changes in the structure of precipitation in the Altai region since these records can reflect changes in the contribution of different atmospheric circulation to annual or seasonal precipitation. The joint consideration of the transport ability of the biological species and the data of precipitation allowed us to determine the main modern sources of biological proxies deposited at the Belukha glacier. The main sources of diatoms in the Belukha ice core are water bodies of the Aral, Caspian, and northern Kazakhstan basins; coniferous tree pollen originated from the taiga forest of the boreal zone of western Siberia; pollen of deciduous trees and herbs from steppe and forest-steppe vegetation in the northern Altai and eastern Kazakhstan; and cysts and spores of plants were transported from local water bodies and forests. The identified source regions of the biological species are supported by back trajectory analyses and are in good agreement with emission source regions of the trace elements in the ice core.

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Section: Discussionsupporting

confidence: 64%

Section: T Papina Et Al: Biological Proxies Recorded In a Belukha Imentioning

confidence: 99%

Biological proxies recorded in a Belukha ice core, Russian Altai

et al. 2013

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“…Much of the remaining variance in K + is explained by EOF 1, indicating that there should be a secondary source for K + . Vegetation fires are known to be a common source of K + , NO 3 − , and NH 4 + in the atmosphere [e.g., Olivier et al , 2006; Eichler et al , 2009, and references therein]; however, EOF 4 is independent from the biomass burning emissions as it is exclusively loaded with K + . The relatively high concentration of K + in the glacier meltwater of Mount Muztagata [ Zhao et al , 2007] suggests that EOF 4 may be representative of a local rock source.…”

Section: Resultsmentioning

confidence: 99%

Records of sulfate and nitrate in an ice core from Mount Muztagata, central Asia

Zhao

Tian

et al. 2011

J. Geophys. Res.

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Annually resolved ice core records of major soluble ions (Na+, NH4+, K+, Mg2+, Ca2+, Cl−, SO42−, and NO3−) covering the period 1907–2002 A.D. from Mount Muztagata in central Asia are presented in this paper. Time series of major ion concentrations generally exhibit very similar temporal trends except NO3− and NH4+. Statistical analyses show that the chemical composition in the Muztagata ice core is predominantly controlled by terrestrial dust inputs originating from the extensive arid and semiarid regions of central Asia. However, by comparison with the typical dust‐derived ion Ca2+, the SO42− and NO3− concentrations increase more rapidly after the mid‐1970s and late 1970s, respectively, possibly indicating the strong anthropogenic contributions from then on. The good agreements between SO42− and NO3− concentration records and their precursor gas emissions from central and southwest Asia suggest the potential source regions contributing to the Muztagata ice core records.

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“…deviation, in such a way that this threshold takes background variations into account, which is of prime importance in the case of non-specific proxies having other sources than biomass burning, such as biogenic emissions in the case of formate (Legrand and De Angelis, 1996) and ammonium (Eichler et al, 2009;Fischer et al, 2015;Kellerhals et al, 2010). Every annual average above this threshold can thus be considered as a year with significant biomass burning emissions, and finally the centennial frequency of such episodes was obtained.…”

Section: Paleofire Detectionmentioning

confidence: 99%

An 800 year high-resolution black carbon ice-core record from Lomonosovfonna, Svalbard

Osmont¹,

Wendl²,

Schmidely³

et al. 2018

Preprint

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Abstract.Produced by the incomplete combustion of fossil fuel and biomass, black carbon (BC) contributes to Arctic warming by reducing snow albedo and thus triggering a snow-albedo feedback leading to increased snow melting. Therefore, 15 it is of high importance to assess past BC emissions to better understand and constrain their role. However, only few longterm BC records are available from the Arctic, mainly originating from Greenland ice cores. Here, we present the first longterm and high-resolution refractory black carbon (rBC) record from Svalbard, derived from the analysis of two ice cores formate, VA and p-HBA experience multi-decadal peaks reflecting periods of enhanced biomass burning. Most of the background variations and single peak events are corroborated by other ice-core records from Greenland and Siberia. We suggest that the paleofire record from the LF ice core primarily reflects biomass burning episodes from Northern Eurasia, 30 induced by decadal-scale climatic variations.

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A 750 year ice core record of past biogenic emissions from Siberian boreal forests

Cited by 50 publications

References 35 publications

Biological proxies recorded in a Belukha ice core, Russian Altai

Biological proxies recorded in a Belukha ice core, Russian Altai

Records of sulfate and nitrate in an ice core from Mount Muztagata, central Asia

An 800 year high-resolution black carbon ice-core record from Lomonosovfonna, Svalbard

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