A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, 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...
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2016
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ftdoajarticles:oai:doaj.org/article:119d856c163b4461896e499e5718c139 2023-05-15T16:38:52+02:00 A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, Svalbard C. P. Vega V. A. Pohjola E. Beaudon B. Claremar W. J. J. van Pelt R. Pettersson E. Isaksson T. Martma M. Schwikowski C. E. Bøggild 2016-05-01T00:00:00Z https://doi.org/10.5194/tc-10-961-2016 https://doaj.org/article/119d856c163b4461896e499e5718c139 EN eng Copernicus Publications http://www.the-cryosphere.net/10/961/2016/tc-10-961-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-961-2016 https://doaj.org/article/119d856c163b4461896e499e5718c139 The Cryosphere, Vol 10, Iss 3, Pp 961-976 (2016) Environmental sciences GE1-350 Geology QE1-996.5 article 2016 ftdoajarticles https://doi.org/10.5194/tc-10-961-2016 2022-12-31T14:10:57Z 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 − > SO 4 2− , Mg 2+ , 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 1 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 70 %, 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., MP = 30 %). Using a firn-densification model to constrain the melt range, a MP of 30 % was found over the same period, which is consistent with the results of the synthetic ice core approach, and a 45 % 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 Directory of Open Access Journals: DOAJ Articles Svalbard Lomonosovfonna ENVELOPE(17.663,17.663,78.774,78.774) The Cryosphere 10 3 961 976 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 C. P. Vega V. A. Pohjola E. Beaudon B. Claremar W. J. J. van Pelt R. Pettersson E. Isaksson T. Martma M. Schwikowski C. E. Bøggild A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, Svalbard |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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 − > SO 4 2− , Mg 2+ , 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 1 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 70 %, 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., MP = 30 %). Using a firn-densification model to constrain the melt range, a MP of 30 % was found over the same period, which is consistent with the results of the synthetic ice core approach, and a 45 % 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 |
C. P. Vega V. A. Pohjola E. Beaudon B. Claremar W. J. J. van Pelt R. Pettersson E. Isaksson T. Martma M. Schwikowski C. E. Bøggild |
author_facet |
C. P. Vega V. A. Pohjola E. Beaudon B. Claremar W. J. J. van Pelt R. Pettersson E. Isaksson T. Martma M. Schwikowski C. E. Bøggild |
author_sort |
C. P. Vega |
title |
A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, Svalbard |
title_short |
A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, Svalbard |
title_full |
A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, Svalbard |
title_fullStr |
A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, Svalbard |
title_full_unstemmed |
A synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on Lomonosovfonna, Svalbard |
title_sort |
synthetic ice core approach to estimate ion relocation in an ice field site experiencing periodical melt: a case study on lomonosovfonna, svalbard |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/tc-10-961-2016 https://doaj.org/article/119d856c163b4461896e499e5718c139 |
long_lat |
ENVELOPE(17.663,17.663,78.774,78.774) |
geographic |
Svalbard Lomonosovfonna |
geographic_facet |
Svalbard Lomonosovfonna |
genre |
ice core Svalbard The Cryosphere |
genre_facet |
ice core Svalbard The Cryosphere |
op_source |
The Cryosphere, Vol 10, Iss 3, Pp 961-976 (2016) |
op_relation |
http://www.the-cryosphere.net/10/961/2016/tc-10-961-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-961-2016 https://doaj.org/article/119d856c163b4461896e499e5718c139 |
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 |
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1766029210356285440 |