A novel approach to process brittle ice for continuous flow analysis of stable water isotopes
Brittle ice, which occurs in all intermediate-depth and deep ice cores retrieved from high-latitude regions, presents a challenge for high-resolution measurements of water isotopes, gases, ions and other quantities conducted with continuous flow analysis (CFA). We present a novel method of preservin...
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Cambridge University Press
2018
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Online Access: | https://doi.org/10.1017/jog.2018.19 https://doaj.org/article/e6b3a24a889148e68c44943f629fb138 |
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ftdoajarticles:oai:doaj.org/article:e6b3a24a889148e68c44943f629fb138 2023-05-15T16:38:55+02:00 A novel approach to process brittle ice for continuous flow analysis of stable water isotopes REBECCA L. PYNE ELIZABETH D. KELLER SILVIA CANESSA NANCY A. N. BERTLER ALEX R. PYNE DARCY MANDENO PAUL VALLELONGA STEFANIE SEMPER HELLE A. KJÆR ED HUTCHINSON W. TROY BAISDEN 2018-04-01T00:00:00Z https://doi.org/10.1017/jog.2018.19 https://doaj.org/article/e6b3a24a889148e68c44943f629fb138 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143018000199/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2018.19 0022-1430 1727-5652 https://doaj.org/article/e6b3a24a889148e68c44943f629fb138 Journal of Glaciology, Vol 64, Pp 289-299 (2018) glaciological instruments and methods ice core paleoclimate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2018 ftdoajarticles https://doi.org/10.1017/jog.2018.19 2023-03-12T01:30:59Z Brittle ice, which occurs in all intermediate-depth and deep ice cores retrieved from high-latitude regions, presents a challenge for high-resolution measurements of water isotopes, gases, ions and other quantities conducted with continuous flow analysis (CFA). We present a novel method of preserving brittle ice for CFA stable water isotope measurements using data from a new ice core recovered by the Roosevelt Island Climate Evolution (RICE) project. Modest modification of the drilling technique and the accommodation of non-horizontal fractures (‘slanted breaks’) in processing led to a substantial improvement in the percentage of brittle ice analyzed with CFA (87.8%). Whereas traditional processing methods remove entire fragmented pieces of ice, our method allowed the incorporation of a total of 3 m of ice (1% of the 261 m of brittle ice and ~1300 years of climate history) that otherwise would not have been available for CFA. Using the RICE stable water isotope CFA dataset, we demonstrate the effect of slanted breaks and analyze the resulting smoothing of the data with real and simulated examples. Our results suggest that retaining slanted breaks are a promising technique for preserving brittle ice material for CFA stable water isotope measurements. Article in Journal/Newspaper ice core Journal of Glaciology Roosevelt Island Directory of Open Access Journals: DOAJ Articles Roosevelt Island ENVELOPE(-162.000,-162.000,-79.283,-79.283) Journal of Glaciology 64 244 289 299 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
glaciological instruments and methods ice core paleoclimate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
glaciological instruments and methods ice core paleoclimate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 REBECCA L. PYNE ELIZABETH D. KELLER SILVIA CANESSA NANCY A. N. BERTLER ALEX R. PYNE DARCY MANDENO PAUL VALLELONGA STEFANIE SEMPER HELLE A. KJÆR ED HUTCHINSON W. TROY BAISDEN A novel approach to process brittle ice for continuous flow analysis of stable water isotopes |
topic_facet |
glaciological instruments and methods ice core paleoclimate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Brittle ice, which occurs in all intermediate-depth and deep ice cores retrieved from high-latitude regions, presents a challenge for high-resolution measurements of water isotopes, gases, ions and other quantities conducted with continuous flow analysis (CFA). We present a novel method of preserving brittle ice for CFA stable water isotope measurements using data from a new ice core recovered by the Roosevelt Island Climate Evolution (RICE) project. Modest modification of the drilling technique and the accommodation of non-horizontal fractures (‘slanted breaks’) in processing led to a substantial improvement in the percentage of brittle ice analyzed with CFA (87.8%). Whereas traditional processing methods remove entire fragmented pieces of ice, our method allowed the incorporation of a total of 3 m of ice (1% of the 261 m of brittle ice and ~1300 years of climate history) that otherwise would not have been available for CFA. Using the RICE stable water isotope CFA dataset, we demonstrate the effect of slanted breaks and analyze the resulting smoothing of the data with real and simulated examples. Our results suggest that retaining slanted breaks are a promising technique for preserving brittle ice material for CFA stable water isotope measurements. |
format |
Article in Journal/Newspaper |
author |
REBECCA L. PYNE ELIZABETH D. KELLER SILVIA CANESSA NANCY A. N. BERTLER ALEX R. PYNE DARCY MANDENO PAUL VALLELONGA STEFANIE SEMPER HELLE A. KJÆR ED HUTCHINSON W. TROY BAISDEN |
author_facet |
REBECCA L. PYNE ELIZABETH D. KELLER SILVIA CANESSA NANCY A. N. BERTLER ALEX R. PYNE DARCY MANDENO PAUL VALLELONGA STEFANIE SEMPER HELLE A. KJÆR ED HUTCHINSON W. TROY BAISDEN |
author_sort |
REBECCA L. PYNE |
title |
A novel approach to process brittle ice for continuous flow analysis of stable water isotopes |
title_short |
A novel approach to process brittle ice for continuous flow analysis of stable water isotopes |
title_full |
A novel approach to process brittle ice for continuous flow analysis of stable water isotopes |
title_fullStr |
A novel approach to process brittle ice for continuous flow analysis of stable water isotopes |
title_full_unstemmed |
A novel approach to process brittle ice for continuous flow analysis of stable water isotopes |
title_sort |
novel approach to process brittle ice for continuous flow analysis of stable water isotopes |
publisher |
Cambridge University Press |
publishDate |
2018 |
url |
https://doi.org/10.1017/jog.2018.19 https://doaj.org/article/e6b3a24a889148e68c44943f629fb138 |
long_lat |
ENVELOPE(-162.000,-162.000,-79.283,-79.283) |
geographic |
Roosevelt Island |
geographic_facet |
Roosevelt Island |
genre |
ice core Journal of Glaciology Roosevelt Island |
genre_facet |
ice core Journal of Glaciology Roosevelt Island |
op_source |
Journal of Glaciology, Vol 64, Pp 289-299 (2018) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143018000199/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2018.19 0022-1430 1727-5652 https://doaj.org/article/e6b3a24a889148e68c44943f629fb138 |
op_doi |
https://doi.org/10.1017/jog.2018.19 |
container_title |
Journal of Glaciology |
container_volume |
64 |
container_issue |
244 |
container_start_page |
289 |
op_container_end_page |
299 |
_version_ |
1766029273571786752 |