Historical porosity data in polar firn
<p>In the 1990s, closed and open porosity volumes of firn samples were measured by J.-M. Barnola using the technique of gas pycnometry, on firn from three different polar sites. They are the basis of a parameterization of closed porosity in polar firn, first introduced in <span class="...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2020-05-01
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| Series: | Earth System Science Data |
| Online Access: | https://www.earth-syst-sci-data.net/12/1171/2020/essd-12-1171-2020.pdf |
| _version_ | 1818047878737690624 |
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| author | K. Fourteau L. Arnaud X. Faïn P. Martinerie D. M. Etheridge V. Lipenkov J.-M. Barnola |
| author_facet | K. Fourteau L. Arnaud X. Faïn P. Martinerie D. M. Etheridge V. Lipenkov J.-M. Barnola |
| author_sort | K. Fourteau |
| collection | DOAJ |
| description | <p>In the 1990s, closed and open porosity volumes of firn samples were measured by J.-M. Barnola using the technique of gas pycnometry, on firn from three different polar sites. They are the basis of a parameterization of closed porosity in polar firn, first introduced in <span class="cit" id="xref_text.1"><a href="#bib1.bibx8">Goujon et al.</a> (<a href="#bib1.bibx8">2003</a>)</span> and used in several firn physics models <span class="cit" id="xref_paren.2">(e.g., <a href="#bib1.bibx3">Buizert et al.</a>, <a href="#bib1.bibx3">2012</a>)</span>. However, these data and their processing have not been published in their own right yet. In this short article, we detail how they were processed by J.-M. Barnola and how the closed porosity parameterization was obtained. We show that the original data processing only partially accounts for the presence of reopened bubbles in the samples. Since the proper correction to apply for this effect is hard to estimate, we also processed the data without including a correction for reopened bubbles. Finally, we made these pycnometry data available in order to be used by the glaciology community, notably for the study of polar ice formation and of the composition of gas records in ice cores. They are hosted on the PANGAEA database: <a href="https://doi.org/10.1594/PANGAEA.907678">https://doi.org/10.1594/PANGAEA.907678</a> <span class="cit" id="xref_paren.3">(<a href="#bib1.bibx6">Fourteau et al.</a>, <a href="#bib1.bibx6">2019</a><a href="#bib1.bibx6">a</a>)</span>.</p> |
| first_indexed | 2024-12-10T10:12:47Z |
| format | Article |
| id | doaj.art-8a623a86f7194fc79f7cb153f98580e3 |
| institution | Directory Open Access Journal |
| issn | 1866-3508 1866-3516 |
| language | English |
| last_indexed | 2024-12-10T10:12:47Z |
| publishDate | 2020-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Earth System Science Data |
| spelling | doaj.art-8a623a86f7194fc79f7cb153f98580e32022-12-22T01:53:04ZengCopernicus PublicationsEarth System Science Data1866-35081866-35162020-05-01121171117710.5194/essd-12-1171-2020Historical porosity data in polar firnK. Fourteau0L. Arnaud1X. Faïn2P. Martinerie3D. M. Etheridge4V. Lipenkov5J.-M. Barnola6Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, FranceUniv. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, FranceUniv. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, FranceUniv. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, FranceClimate Science Centre, CSIRO Oceans and Atmosphere, Aspendale, Victoria, AustraliaClimate and Environmental Research Laboratory, Arctic and Antarctic Research Institute, St. Petersburg, 199397, RussiaUniv. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, 38000 Grenoble, France<p>In the 1990s, closed and open porosity volumes of firn samples were measured by J.-M. Barnola using the technique of gas pycnometry, on firn from three different polar sites. They are the basis of a parameterization of closed porosity in polar firn, first introduced in <span class="cit" id="xref_text.1"><a href="#bib1.bibx8">Goujon et al.</a> (<a href="#bib1.bibx8">2003</a>)</span> and used in several firn physics models <span class="cit" id="xref_paren.2">(e.g., <a href="#bib1.bibx3">Buizert et al.</a>, <a href="#bib1.bibx3">2012</a>)</span>. However, these data and their processing have not been published in their own right yet. In this short article, we detail how they were processed by J.-M. Barnola and how the closed porosity parameterization was obtained. We show that the original data processing only partially accounts for the presence of reopened bubbles in the samples. Since the proper correction to apply for this effect is hard to estimate, we also processed the data without including a correction for reopened bubbles. Finally, we made these pycnometry data available in order to be used by the glaciology community, notably for the study of polar ice formation and of the composition of gas records in ice cores. They are hosted on the PANGAEA database: <a href="https://doi.org/10.1594/PANGAEA.907678">https://doi.org/10.1594/PANGAEA.907678</a> <span class="cit" id="xref_paren.3">(<a href="#bib1.bibx6">Fourteau et al.</a>, <a href="#bib1.bibx6">2019</a><a href="#bib1.bibx6">a</a>)</span>.</p>https://www.earth-syst-sci-data.net/12/1171/2020/essd-12-1171-2020.pdf |
| spellingShingle | K. Fourteau L. Arnaud X. Faïn P. Martinerie D. M. Etheridge V. Lipenkov J.-M. Barnola Historical porosity data in polar firn Earth System Science Data |
| title | Historical porosity data in polar firn |
| title_full | Historical porosity data in polar firn |
| title_fullStr | Historical porosity data in polar firn |
| title_full_unstemmed | Historical porosity data in polar firn |
| title_short | Historical porosity data in polar firn |
| title_sort | historical porosity data in polar firn |
| url | https://www.earth-syst-sci-data.net/12/1171/2020/essd-12-1171-2020.pdf |
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