View in EDS

Melt‐Induced Fractionation of Major Ions and Trace Elements in an Alpine Snowpack.

Saved in:
Bibliographic Details
Title: Melt‐Induced Fractionation of Major Ions and Trace Elements in an Alpine Snowpack.
Authors: Avak, Sven E.1,2,3, Trachsel, Jürg C.4,5, Edebeli, Jacinta1,5, Brütsch, Sabina1, Bartels‐Rausch, Thorsten1, Schneebeli, Martin4, Schwikowski, Margit1,2,3, Eichler, Anja1,3 anja.eichler@psi.ch
Source: Journal of Geophysical Research. Earth Surface. Jul2019, Vol. 124 Issue 7, p1647-1657. 11p.
Subject Terms: *Trace elements, *Weather control, Snowpack augmentation, Phase transitions
Geographic Terms: Alps, Swiss (Switzerland)
Abstract: Understanding the impact of melting on the preservation of atmospheric compounds in high‐Alpine snow and glacier ice is crucial for future reconstruction of past atmospheric conditions. However, detailed studies investigating melt‐related changes of such proxy information are rare. Here we present a series of five snow pit profiles of 6 major ions and 34 trace elements at Weissfluhjoch, Switzerland, collected between January and June 2017. Atmospheric composition was preserved during the cold season, while melting toward the summer resulted in preferential loss of certain species from the snowpack or enrichment at the base of the snowpack. Increasing mobilization of major ions with meltwater (NH4+ < Cl− ~ Na+ < NO3− ~ Ca2+ ~ SO42−) can be related to their stronger enrichment at ice crystal surfaces during snow metamorphism. Results for trace elements show that less abundant elements such as Ce, Eu, La, Mo, Nd, Pb, Pr, Sb, Sc, Sm, U, and W were best preserved and may still serve as tracers to reconstruct past natural and anthropogenic atmospheric emissions from melt‐affected snow pit and ice core records. The obtained elution behavior matches the findings from another high‐Alpine site (upper Grenzgletscher) for major ions and the large majority of investigated trace elements. Both studies indicate that water solubility and location at the microscopic scale are likely to determine the relocation behavior with meltwater and also suggest that the observed species‐dependent preservation from melting snow and ice is representative for the Alpine region, reflecting Central European atmospheric aerosol composition. Key Points: Impurity profiles in the seasonal snowpack at Weissfluhjoch, Swiss Alps, suggest a well‐preserved atmospheric composition in winterMelting during warm periods causes preferential elution of selected major ions and trace elements from the snowpackAmmonium, the rare‐earth elements, and low concentrated trace elements tend to be most resistant to meltwater‐induced relocation [ABSTRACT FROM AUTHOR]
Copyright of Journal of Geophysical Research. Earth Surface is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: GreenFILE
FullText Text:
  Availability: 0
Header DbId: 8gh
DbLabel: GreenFILE
An: 138088730
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Melt‐Induced Fractionation of Major Ions and Trace Elements in an Alpine Snowpack.
– Name: Author
  Label: Authors
  Group: Au
  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Avak%2C+Sven+E%2E%22&quot;&gt;Avak, Sven E.&lt;/searchLink&gt;&lt;relatesTo&gt;1,2,3&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Trachsel%2C+J&#252;rg+C%2E%22&quot;&gt;Trachsel, J&#252;rg C.&lt;/searchLink&gt;&lt;relatesTo&gt;4,5&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Edebeli%2C+Jacinta%22&quot;&gt;Edebeli, Jacinta&lt;/searchLink&gt;&lt;relatesTo&gt;1,5&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Br&#252;tsch%2C+Sabina%22&quot;&gt;Br&#252;tsch, Sabina&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bartels‐Rausch%2C+Thorsten%22&quot;&gt;Bartels‐Rausch, Thorsten&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Schneebeli%2C+Martin%22&quot;&gt;Schneebeli, Martin&lt;/searchLink&gt;&lt;relatesTo&gt;4&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Schwikowski%2C+Margit%22&quot;&gt;Schwikowski, Margit&lt;/searchLink&gt;&lt;relatesTo&gt;1,2,3&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Eichler%2C+Anja%22&quot;&gt;Eichler, Anja&lt;/searchLink&gt;&lt;relatesTo&gt;1,3&lt;/relatesTo&gt;&lt;i&gt; anja.eichler@psi.ch&lt;/i&gt;
– Name: TitleSource
  Label: Source
  Group: Src
  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Journal+of+Geophysical+Research%2E+Earth+Surface%22&quot;&gt;Journal of Geophysical Research. Earth Surface&lt;/searchLink&gt;. Jul2019, Vol. 124 Issue 7, p1647-1657. 11p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Trace+elements%22&quot;&gt;Trace elements&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Weather+control%22&quot;&gt;Weather control&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Snowpack+augmentation%22&quot;&gt;Snowpack augmentation&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Phase+transitions%22&quot;&gt;Phase transitions&lt;/searchLink&gt;
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Alps%2C+Swiss+%28Switzerland%29%22&quot;&gt;Alps, Swiss (Switzerland)&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Understanding the impact of melting on the preservation of atmospheric compounds in high‐Alpine snow and glacier ice is crucial for future reconstruction of past atmospheric conditions. However, detailed studies investigating melt‐related changes of such proxy information are rare. Here we present a series of five snow pit profiles of 6 major ions and 34 trace elements at Weissfluhjoch, Switzerland, collected between January and June 2017. Atmospheric composition was preserved during the cold season, while melting toward the summer resulted in preferential loss of certain species from the snowpack or enrichment at the base of the snowpack. Increasing mobilization of major ions with meltwater (NH4+&#160;&lt;&#160;Cl−&#160;~&#160;Na+&#160;&lt;&#160;NO3−&#160;~&#160;Ca2+&#160;~&#160;SO42−) can be related to their stronger enrichment at ice crystal surfaces during snow metamorphism. Results for trace elements show that less abundant elements such as Ce, Eu, La, Mo, Nd, Pb, Pr, Sb, Sc, Sm, U, and W were best preserved and may still serve as tracers to reconstruct past natural and anthropogenic atmospheric emissions from melt‐affected snow pit and ice core records. The obtained elution behavior matches the findings from another high‐Alpine site (upper Grenzgletscher) for major ions and the large majority of investigated trace elements. Both studies indicate that water solubility and location at the microscopic scale are likely to determine the relocation behavior with meltwater and also suggest that the observed species‐dependent preservation from melting snow and ice is representative for the Alpine region, reflecting Central European atmospheric aerosol composition. Key Points: Impurity profiles in the seasonal snowpack at Weissfluhjoch, Swiss Alps, suggest a well‐preserved atmospheric composition in winterMelting during warm periods causes preferential elution of selected major ions and trace elements from the snowpackAmmonium, the rare‐earth elements, and low concentrated trace elements tend to be most resistant to meltwater‐induced relocation [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: &lt;i&gt;Copyright of Journal of Geophysical Research. Earth Surface is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=138088730
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1029/2019JF005026
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 1647
    Subjects:
      – SubjectFull: Trace elements
        Type: general
      – SubjectFull: Weather control
        Type: general
      – SubjectFull: Snowpack augmentation
        Type: general
      – SubjectFull: Phase transitions
        Type: general
      – SubjectFull: Alps, Swiss (Switzerland)
        Type: general
    Titles:
      – TitleFull: Melt‐Induced Fractionation of Major Ions and Trace Elements in an Alpine Snowpack.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Avak, Sven E.
      – PersonEntity:
          Name:
            NameFull: Trachsel, Jürg C.
      – PersonEntity:
          Name:
            NameFull: Edebeli, Jacinta
      – PersonEntity:
          Name:
            NameFull: Brütsch, Sabina
      – PersonEntity:
          Name:
            NameFull: Bartels‐Rausch, Thorsten
      – PersonEntity:
          Name:
            NameFull: Schneebeli, Martin
      – PersonEntity:
          Name:
            NameFull: Schwikowski, Margit
      – PersonEntity:
          Name:
            NameFull: Eichler, Anja
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 07
              Text: Jul2019
              Type: published
              Y: 2019
          Identifiers:
            – Type: issn-print
              Value: 21699003
          Numbering:
            – Type: volume
              Value: 124
            – Type: issue
              Value: 7
          Titles:
            – TitleFull: Journal of Geophysical Research. Earth Surface
              Type: main
ResultId 1