Hot water drilling in the firn layer of Greenland's percolation zone
The intermixed thermal and structural framework of cold firn, water-saturated firn and ice layers in Greenland's percolation zone can be challenging to penetrate with core drills. Here, we present our experiences using a hot water drill for research on the firn layer of the percolation zone. We...
Published in: | Annals of Glaciology |
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Language: | English |
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Cambridge University Press
2021
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Online Access: | https://doi.org/10.1017/aog.2020.75 https://doaj.org/article/a411c668f31840b2bfbcd56d69c34966 |
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ftdoajarticles:oai:doaj.org/article:a411c668f31840b2bfbcd56d69c34966 2023-05-15T13:29:29+02:00 Hot water drilling in the firn layer of Greenland's percolation zone Neil Humphrey Joel Harper Toby Meierbachtol 2021-04-01T00:00:00Z https://doi.org/10.1017/aog.2020.75 https://doaj.org/article/a411c668f31840b2bfbcd56d69c34966 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0260305520000750/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2020.75 0260-3055 1727-5644 https://doaj.org/article/a411c668f31840b2bfbcd56d69c34966 Annals of Glaciology, Vol 62, Pp 175-178 (2021) Melt – surface glaciological instruments and methods polar firn Meteorology. Climatology QC851-999 article 2021 ftdoajarticles https://doi.org/10.1017/aog.2020.75 2023-03-12T01:31:55Z The intermixed thermal and structural framework of cold firn, water-saturated firn and ice layers in Greenland's percolation zone can be challenging to penetrate with core drills. Here, we present our experiences using a hot water drill for research on the firn layer of the percolation zone. We built and deployed a lightweight and easily transportable system for drilling a transect of ~15 cm diameter boreholes through the full firn column thickness, to depths exceeding 100 m. An instrumented drill stem provides a scientific measurement of the firn properties while drilling. The system was successful at gaining rapid access to the firn column with mixed wet and cold conditions, was easily transported to the site and across the glacier surface, and required a small field crew to operate. The boreholes are well suited for in situ investigations of firn processes in Greenland percolation zone. Article in Journal/Newspaper Annals of Glaciology glacier Greenland Directory of Open Access Journals: DOAJ Articles Greenland Annals of Glaciology 62 84 175 178 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Melt – surface glaciological instruments and methods polar firn Meteorology. Climatology QC851-999 |
spellingShingle |
Melt – surface glaciological instruments and methods polar firn Meteorology. Climatology QC851-999 Neil Humphrey Joel Harper Toby Meierbachtol Hot water drilling in the firn layer of Greenland's percolation zone |
topic_facet |
Melt – surface glaciological instruments and methods polar firn Meteorology. Climatology QC851-999 |
description |
The intermixed thermal and structural framework of cold firn, water-saturated firn and ice layers in Greenland's percolation zone can be challenging to penetrate with core drills. Here, we present our experiences using a hot water drill for research on the firn layer of the percolation zone. We built and deployed a lightweight and easily transportable system for drilling a transect of ~15 cm diameter boreholes through the full firn column thickness, to depths exceeding 100 m. An instrumented drill stem provides a scientific measurement of the firn properties while drilling. The system was successful at gaining rapid access to the firn column with mixed wet and cold conditions, was easily transported to the site and across the glacier surface, and required a small field crew to operate. The boreholes are well suited for in situ investigations of firn processes in Greenland percolation zone. |
format |
Article in Journal/Newspaper |
author |
Neil Humphrey Joel Harper Toby Meierbachtol |
author_facet |
Neil Humphrey Joel Harper Toby Meierbachtol |
author_sort |
Neil Humphrey |
title |
Hot water drilling in the firn layer of Greenland's percolation zone |
title_short |
Hot water drilling in the firn layer of Greenland's percolation zone |
title_full |
Hot water drilling in the firn layer of Greenland's percolation zone |
title_fullStr |
Hot water drilling in the firn layer of Greenland's percolation zone |
title_full_unstemmed |
Hot water drilling in the firn layer of Greenland's percolation zone |
title_sort |
hot water drilling in the firn layer of greenland's percolation zone |
publisher |
Cambridge University Press |
publishDate |
2021 |
url |
https://doi.org/10.1017/aog.2020.75 https://doaj.org/article/a411c668f31840b2bfbcd56d69c34966 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Annals of Glaciology glacier Greenland |
genre_facet |
Annals of Glaciology glacier Greenland |
op_source |
Annals of Glaciology, Vol 62, Pp 175-178 (2021) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0260305520000750/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2020.75 0260-3055 1727-5644 https://doaj.org/article/a411c668f31840b2bfbcd56d69c34966 |
op_doi |
https://doi.org/10.1017/aog.2020.75 |
container_title |
Annals of Glaciology |
container_volume |
62 |
container_issue |
84 |
container_start_page |
175 |
op_container_end_page |
178 |
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1766000919104716800 |