Trace element and major ion concentrations and dynamics in glacier snow and melt: Eliot Glacier, Oregon Cascades

Fortner, Sarah K.; Lyons, W. Berry; Fountain, Andrew G.; Welch, Kathleen A.; Kehrwald, Natalie

doi:10.1002/hyp.7418

Cited by 18 publications

(14 citation statements)

References 54 publications

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“…Ice and snow studies have extensively documented large changes in aerosol constituents including ionic species (Udisti et al, 2004;Edwards et al, 2006), dust (Basile et al, 1997;Biscaye et al, 1997;Ruth et al, 2008), trace elements (Gabrielli et al, 2005;Fortner et al, 2009) and organic compounds (Grannas et al, 2006) during the late Quaternary period. Many studies focus on establishing episodic biomass burning events as recorded in snow and ice using elevated concentrations of various chemical species, including black carbon and soot (Hansen and Nazarenko, 2004), ammonium (Stohl et al, 2007) and potassium (Echalar et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Levoglucosan as a specific marker of fire events in Greenland snow

Kehrwald

Zangrando

Gabrielli

et al. 2012

Tellus B: Chemical and Physical Meteorology

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We demonstrate the use of levoglucosan (1,6-anhydro-β-d-glucopyranose) as a source-specific proxy of past fire activity in snow pits and ice cores. Levoglucosan is unambiguously a degradation product derived from cellulose burning at temperatures greater than 300 °C and is widely used as a biomass burning marker in aerosol analyses. We analyse samples collected from a 3 m snow pit at Summit, Greenland (72°20′N, 38°45′W; 3270 m a.s.l.), with a known depositional history where biomass burning aerosols were traced from their source in a Canadian smoke plume, through their eastward transport and deposition on the Greenland ice sheet, and their eventual burial by accumulating snow layers. The snow pit levoglucosan profile replicates oxalate concentrations from a known forest fire event, suggesting the applicability of levoglucosan as a marker of past fire activity in snow and by extension in ice cores. However, levoglucosan concentration peaks in the snow pit differ from those of ammonium and potassium, which are traditionally used as biomass burning proxies in snow and ice studies but which incorporate sources other than fire activity. The source specificity of levoglucosan can help determine the past relative contribution of biomass burning aerosols when used in conjunction with other proxies in snow and ice

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Section: Introductionmentioning

confidence: 99%

Levoglucosan as a specific marker of fire events in Greenland snow

Kehrwald

Zangrando

Gabrielli

et al. 2012

Tellus B: Chemical and Physical Meteorology

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“…The values of the standard deviation for each ion showed very wide ranges of 0~1,057. These results are attributed to the vertical and spatial inhomogeneity of snow and glaciers (Maupetit and Delmas, 1992;Fortner et al, 2009) (Aristarain and Delmas, 2002). Additionally, the average concentrations of Ca 2+ , SO 4 2-, HCO 3 -and H 4 SiO 4 in the PW were higher by approximately 3.4, 9.8, 1.4 and 1.5 times, respectively, than those in the MW.…”

Section: Chemical Propertiesmentioning

confidence: 85%

Geochemical characteristics of meltwater and pondwater on Barton and Weaver Peninsulas of King George Island, West Antarctica

et al. 2014

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In Antarctica, the geochemical properties of meltwater and pondwater are very sensitive to global warming. Therefore, understanding the geochemical properties of the meltwater and pondwater is crucial to evaluating global climate change. This study was performed to examine the chemical and isotopic compositions of the meltwater and pondwater at the Barton and Weaver Peninsulas of King George Island, Antarctica, to understand their spatial variation and to evaluate factors controlling the surface water chemistry. The meltwater, pondwater and seawater were sampled at 50 sites of the Barton and Weaver Peninsulas during the period from 23 December 2010 to 5 January 2011. The chemical compositions of the meltwater and pondwater were mainly influenced by sea salt. Additionally, the influence of water-rock interaction was observed in some meltwater and pondwater. The LREE/HREE ratios of some of the pondwater in the Barton Peninsula showed a decreasing trend by influence of water-rock interaction. The influences of sea salt and water-rock interaction were more dominant at the Barton Peninsula than the Weaver Peninsula. The δ 18 O and δD of the meltwater and pondwater showed a wide range. Little evaporation losses were observed at the Barton Peninsula but evaporation losses did not occurred at the Weaver Peninsula.

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“…The retreat of glaciers worldwide may lead to the rapid release of trace metals that are stored in the ice (Schuster et al, 2002;Barbante et al, 2004;Hong et al, 2004;Fortner et al, 2005Fortner et al, , 2009). Metals and other solutes released from the thawing cryosphere can impact the hydrologic system, resulting in changing water chemistry because of melting glaciers (Salerno et al, 2016), permafrost (Schuster et al, 2011;Todd et al, 2012), and rock glaciers (Thies et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Effect of Atmospheric Deposition and Weathering on Trace Element Concentrations in Glacial Meltwater at Grand Teton National Park, Wyoming, U.S.A.

Carling

Rupper

Fernández

et al. 2017

Arctic, Antarctic, and Alpine Research

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Trace element and major ion concentrations and dynamics in glacier snow and melt: Eliot Glacier, Oregon Cascades

Abstract: Abstract:We present concentrations of environmentally available (unfiltered acidified 2% v/v HNO 3 ) As, Cu, Cd, Pb, V, Sr, and major ions including Ca 2C

Cited by 18 publications

References 54 publications

Levoglucosan as a specific marker of fire events in Greenland snow

Levoglucosan as a specific marker of fire events in Greenland snow

Geochemical characteristics of meltwater and pondwater on Barton and Weaver Peninsulas of King George Island, West Antarctica

Effect of Atmospheric Deposition and Weathering on Trace Element Concentrations in Glacial Meltwater at Grand Teton National Park, Wyoming, U.S.A.

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