A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard
Physical and chemical properties of four different ice cores (LF-97, LF-08, LF-09 and LF-11) drilled at Lomonosovfonna, Svalbard, were compared to investigate the effects of meltwater percolation on the chemical and physical stratigraphy of these records. A synthetic ice core approach was employed a...
Published in: | The Cryosphere |
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Language: | English |
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Uppsala universitet, Institutionen för geovetenskaper
2016
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296180 https://doi.org/10.5194/tc-10-961-2016 |
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ftuppsalauniv:oai:DiVA.org:uu-296180 2023-05-15T16:38:52+02:00 A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard Vega, Carmen P. Pohjola, Veijo A. Beaudon, Emilie Claremar, Björn van Pelt, Ward J. J. Pettersson, Rickard Isaksson, Elisabeth Martma, Tonu Schwikowski, Margit Bøggild, Carl E. 2016 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296180 https://doi.org/10.5194/tc-10-961-2016 eng eng Uppsala universitet, Institutionen för geovetenskaper Uppsala universitet, Luft-, vatten- och landskapslära Univ Lapland, Arctic Ctr, Rovaniemi 96101, Finland; Byrd Polar & Climate Res Ctr, 082A Scott Hall,1090 Carmack Rd, Columbus, OH 43210 USA Norwegian Polar Res Inst, Fram Ctr, N-9296 Tromso, Norway Paul Scherrer Inst, CH-5232 Villigen, Switzerland UNIS, Univ Ctr Svalbard, Pb 156, N-9171 Longyearbyen, Norway;Tech Univ Denmark, Arctic Technol Ctr, Bygning 204, DK-2800 Lyngby, Denmark The Cryosphere, 1994-0416, 2016, 10, s. 961-976 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296180 doi:10.5194/tc-10-961-2016 ISI:000379415500002 info:eu-repo/semantics/openAccess Geosciences Multidisciplinary Multidisciplinär geovetenskap Article in journal info:eu-repo/semantics/article text 2016 ftuppsalauniv https://doi.org/10.5194/tc-10-961-2016 2023-02-23T21:57:56Z Physical and chemical properties of four different ice cores (LF-97, LF-08, LF-09 and LF-11) drilled at Lomonosovfonna, Svalbard, were compared to investigate the effects of meltwater percolation on the chemical and physical stratigraphy of these records. A synthetic ice core approach was employed as reference record to estimate the ionic relocation and meltwater percolation length at this site during the period 2007-2010. Using this method, a partial ion elution sequence obtained for Lomonosovfonna was NO(3)(-)aEuro-> aEuro-SO42-, Mg2+, Cl-, K+, Na+ with nitrate being the most mobile within the snowpack. The relocation length of most of the ions was on the order of 1aEuro-m during this period. In addition, by using both a positive degree day (PDD) and a snow-energy model approaches to estimate the percentage of melt at Lomonosovfonna, we have calculated a melt percentage (MP) of the total annual accumulation within the range between 48 and 70aEuro-%, for the period between 2007 and 2010, which is above the MP range suggested by the ion relocation evidenced in the LF-syn core (i.e., MPaEuro-aEuro parts per thousand= aEuro-30aEuro-%). Using a firn-densification model to constrain the melt range, a MP of 30aEuro-% was found over the same period, which is consistent with the results of the synthetic ice core approach, and a 45aEuro-% of melt for the last 60 years. Considering the ionic relocation lengths and annual melt percentages, we estimate that the atmospheric ionic signal remains preserved in recently drilled Lomonosovfonna ice cores at an annual or bi-annual resolution when weather conditions were similar to those during the 2007-2010 period. Article in Journal/Newspaper ice core Svalbard The Cryosphere Uppsala University: Publications (DiVA) Lomonosovfonna ENVELOPE(17.663,17.663,78.774,78.774) Svalbard The Cryosphere 10 3 961 976 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Geosciences Multidisciplinary Multidisciplinär geovetenskap |
spellingShingle |
Geosciences Multidisciplinary Multidisciplinär geovetenskap Vega, Carmen P. Pohjola, Veijo A. Beaudon, Emilie Claremar, Björn van Pelt, Ward J. J. Pettersson, Rickard Isaksson, Elisabeth Martma, Tonu Schwikowski, Margit Bøggild, Carl E. A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard |
topic_facet |
Geosciences Multidisciplinary Multidisciplinär geovetenskap |
description |
Physical and chemical properties of four different ice cores (LF-97, LF-08, LF-09 and LF-11) drilled at Lomonosovfonna, Svalbard, were compared to investigate the effects of meltwater percolation on the chemical and physical stratigraphy of these records. A synthetic ice core approach was employed as reference record to estimate the ionic relocation and meltwater percolation length at this site during the period 2007-2010. Using this method, a partial ion elution sequence obtained for Lomonosovfonna was NO(3)(-)aEuro-> aEuro-SO42-, Mg2+, Cl-, K+, Na+ with nitrate being the most mobile within the snowpack. The relocation length of most of the ions was on the order of 1aEuro-m during this period. In addition, by using both a positive degree day (PDD) and a snow-energy model approaches to estimate the percentage of melt at Lomonosovfonna, we have calculated a melt percentage (MP) of the total annual accumulation within the range between 48 and 70aEuro-%, for the period between 2007 and 2010, which is above the MP range suggested by the ion relocation evidenced in the LF-syn core (i.e., MPaEuro-aEuro parts per thousand= aEuro-30aEuro-%). Using a firn-densification model to constrain the melt range, a MP of 30aEuro-% was found over the same period, which is consistent with the results of the synthetic ice core approach, and a 45aEuro-% of melt for the last 60 years. Considering the ionic relocation lengths and annual melt percentages, we estimate that the atmospheric ionic signal remains preserved in recently drilled Lomonosovfonna ice cores at an annual or bi-annual resolution when weather conditions were similar to those during the 2007-2010 period. |
format |
Article in Journal/Newspaper |
author |
Vega, Carmen P. Pohjola, Veijo A. Beaudon, Emilie Claremar, Björn van Pelt, Ward J. J. Pettersson, Rickard Isaksson, Elisabeth Martma, Tonu Schwikowski, Margit Bøggild, Carl E. |
author_facet |
Vega, Carmen P. Pohjola, Veijo A. Beaudon, Emilie Claremar, Björn van Pelt, Ward J. J. Pettersson, Rickard Isaksson, Elisabeth Martma, Tonu Schwikowski, Margit Bøggild, Carl E. |
author_sort |
Vega, Carmen P. |
title |
A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard |
title_short |
A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard |
title_full |
A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard |
title_fullStr |
A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard |
title_full_unstemmed |
A synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onLomonosovfonna, Svalbard |
title_sort |
synthetic ice core approach to estimate ion relocation in anice field site experiencing periodical melt : a case study onlomonosovfonna, svalbard |
publisher |
Uppsala universitet, Institutionen för geovetenskaper |
publishDate |
2016 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296180 https://doi.org/10.5194/tc-10-961-2016 |
long_lat |
ENVELOPE(17.663,17.663,78.774,78.774) |
geographic |
Lomonosovfonna Svalbard |
geographic_facet |
Lomonosovfonna Svalbard |
genre |
ice core Svalbard The Cryosphere |
genre_facet |
ice core Svalbard The Cryosphere |
op_relation |
The Cryosphere, 1994-0416, 2016, 10, s. 961-976 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296180 doi:10.5194/tc-10-961-2016 ISI:000379415500002 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-10-961-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
3 |
container_start_page |
961 |
op_container_end_page |
976 |
_version_ |
1766029209804734464 |