Relationship between the 2014–2015 Holuhraun eruption and the iron record in the East GRIP snow pit

Du, Zhiheng; Xiao, Cunde; Zhang, Qi; Handley, Michael; Mayewski, Paul Andrew; Li, Chuanjin

doi:10.1080/15230430.2019.1634441

Cited by 10 publications

(3 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is not unexpected as the conductivity in snow and ice, while in Greenland mainly driven by H + can be highly influenced also by forest fire acids and or salt content. We note also that from 14th August 2014 until 15 th February 2015 the VEI 1 eruption of the Holuhraun vent of Bardarbunga volcano occurred (Du et al, 2019b(Du et al, , 2019aGauthier et al, 2016;Schmidt et al, 2015) and we find enhanced conductivity reaching almost 5 µS between June 2014 and May 2015 resembling the Holohraun eruption (Figure 4). This suggests that our dating is slightly off, but generally in agreement with the expected time period.…”

Section: Resultssupporting

confidence: 64%

A portable Lightweight In Situ Analysis (LISA) box for ice and snow analysis

Kjær¹,

Hauge²,

Simonsen³

et al. 2021

Preprint

View full text Add to dashboard Cite

Abstract. Polar researchers spend enormous costs transporting snow and ice samples to home laboratories for simple analyses in order to constrain annual layer thicknesses and identifying accumulation rates of specific sites. It is well known that depositional noise, incurred from wind drifts, seasonally-biased deposition, melt layers and more, can influence individual snow and firn records and that multiple cores are required to produce statistically robust time series. Thus at many sites core samples are measured in the field for densification, but the annual accumulation and the content of chemical impurities are often represented by just one core to reduce transport costs. We have developed a portable Light weight in Situ Analysis (LISA) box for ice, firn and snow analysis capable of constraining annual layers through the continuous flow analysis of melt water conductivity and peroxide under field conditions. The box can run using a small gasoline-generator and weighs less than 50 kg. The LISA box was tested under field conditions at the deep ice core drilling site EastGRIP in Northern Greenland. Analysis of the top 2 metres of snow from 7 sites in Northern Greenland (Figure 1) allowed the reconstruction of regional snow accumulation patterns for the period 2015–2019.

show abstract

Section: Resultssupporting

confidence: 64%

A portable Lightweight In Situ Analysis (LISA) box for ice and snow analysis

Kjær¹,

Hauge²,

Simonsen³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The highly resolved records in snow pits provide more precise information of climate and environment. Distinguishable seasonal patterns in the records of stable water isotopes (d 18 O and dD) and chemical impurities are crucial for the stratigraphic dating of accumulated snow layers and are used as proxies for temperature, sea ice extent (SIE), atmospheric circulation, aerosol transport and depositional processes, and atmospheric (anthropogenic) pollution in this remote location Jouzel et al 1997;Barbante et al 1998;Udisti et al 1999;Stenni et al 2000;Delmotte et al 2000;Ayling and McGowan 2006;Sinclair et al 2010;Rhodes et al 2012;Markle et al 2012;Tuohy et al 2015;Du et al 2019;Bhardwaj and Jindal 2020).…”

Section: Introductionmentioning

confidence: 99%

Snow-Pit Record from a Coastal Antarctic Site and Its Preservation of Meteorological Features

et al. 2021

View full text Add to dashboard Cite

Polar snow pits or ice cores preserve valuable information derived from the atmosphere on past climate and environment changes. A 1.57-m snow-pit record from the coastal site (Styx Glacier) in eastern Antarctica covering the period from January 2011 to January 2015 was discussed and compared with meteorological variables. The dominant contribution of the deposition of sea-salt aerosols due to the proximity of the site to the ocean and processes of sea ice formation was revealed in the ionic concentrations. Consistent seasonal peaks in δ 18 O, δ D, MSA, , and indicate the strong enhancement of their source during warm periods, whereas the sea-salt ions (Na + , K + , Mg 2+ , Ca 2+ , Cl − , and ) exhibit a distinct distribution. Monthly mean δ 18 O positively correlates with the air temperature record from an automatic weather station (AWS) located in the main wind direction. Despite the shortness of the record, we suspect that the slight depletion of the isotopic composition and lowering of the snow accumulation could be related to the cooler air temperature with the decrease of open sea area. Consistency with previous studies and the positive correlation of sea-salt ions in the snow pit indicate the relatively good preservation of snow layers with noticeable climate and environmental signals [e.g., changes in sea ice extent (SIE) or sea surface temperature]. We report a new snow-pit record, which would be comparative and supportive to understand similar signals preserved in deeper ice cores in this location.

show abstract

“…In Antarctica, many of the chemical species and isotopic compositions of water retrieved from ice cores and snowpits show clear seasonal variations (Kuramoto et al 2011;Kwak et al 2015;Nyamgerel et al 2020Nyamgerel et al , 2021. Distinguishing seasonal patterns in stable water isotopes (δ 18 O and δD) and chemical impurities is crucial for the stratigraphic dating of accumulated snow layers, and are used as proxies for temperature, sea ice extent, atmospheric circulation, aerosol transport and depositional processes (Udisti 1996; Delmotte et al 2000;Ayling and McGowan 2006;Severi et al 2017;Du et al 2019;Servettaz et al 2020). However, obtaining reliable relationships between chemical and isotopic data and atmospheric composition is strongly dependent on how changes in source intensity and transport efficiency can be stored in snow in different climatic conditions (Udisti et al 1999;Stenni et al 2000;Rhodes et al 2012;Markle et al 2012;Tuohy et al 2015;Arndt et al 2018;Casado et al 2018;Goursaud et al 2019;Ma et al 2020;Servettaz et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Polish Polar Research

Hur,

Chung,

Namgerel

et al. 2021

View full text Add to dashboard Cite

Seasonal variations of the isotopic and chemical compositions of snowpits can provide useful tools for dating the age of the snowpit and examining the sources of aerosol. Based on the seasonal layers with δD and δ 18 O maxima and minima, it was determined that the snowpit, conducted in the vicinity of the Jang Bogo Station in Antarctica, contained snow deposited over a three-year period (2008)(2009)(2010). Distinct seasonal variations of stable water isotopes were observed, with a slope of 8.2 from the linear isotopic relationship between oxygen and hydrogen, which indicates that the snow accumulated during three years without a significant post-depositional process. The positive correlations (r > 0.85) between Na + and other ions in the winter period and the positive relationship with the concentrations of the methanesulphonic acid (MSA) and non-sea salt sulfate (nssSO 4 2-) in the warm period (r = 0.6, spring to summer) indicate the significant contributions of an oceanic source to the snowpit. Based on principal component analysis, the isotopic and chemical variables were classified into species representing input of sea-salt aerosol and suggesting potential seasonal markers. This study will support further investigations using ice cores in this region.

show abstract

Relationship between the 2014–2015 Holuhraun eruption and the iron record in the East GRIP snow pit

Cited by 10 publications

References 44 publications

A portable Lightweight In Situ Analysis (LISA) box for ice and snow analysis

A portable Lightweight In Situ Analysis (LISA) box for ice and snow analysis

Snow-Pit Record from a Coastal Antarctic Site and Its Preservation of Meteorological Features

Polish Polar Research

Contact Info

Product

Resources

About