A Rosette for Sampling Ice-Covered Water
The Arctic Ocean is changing rapidly as Earth's climate warms. To document and understand these changing ocean conditions, we developed a rosette that collects high-quality oceanographic data and is deployed from an aircraft through a 30.5 cm diameter hole drilled in the ice (Figure 1). The ros...
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ftdoajarticles:oai:doaj.org/article:37607e6f4fc94a3995d6ef80eaa00df5 2023-05-15T15:00:52+02:00 A Rosette for Sampling Ice-Covered Water William M. Smethie Jr. Dale Chayes Richard Perry Peter Schlosser Ronny Friedrich 2011-09-01T00:00:00Z https://doaj.org/article/37607e6f4fc94a3995d6ef80eaa00df5 EN eng The Oceanography Society http://tos.org/oceanography/archive/24-3_smethie.pdf https://doaj.org/toc/1042-8275 1042-8275 https://doaj.org/article/37607e6f4fc94a3995d6ef80eaa00df5 Oceanography, Vol 24, Iss 3, Pp 160-161 (2011) Arctic Ocean International Polar Year IPY rosette Oceanography GC1-1581 article 2011 ftdoajarticles 2022-12-31T02:13:19Z The Arctic Ocean is changing rapidly as Earth's climate warms. To document and understand these changing ocean conditions, we developed a rosette that collects high-quality oceanographic data and is deployed from an aircraft through a 30.5 cm diameter hole drilled in the ice (Figure 1). The rosette is modular, with the modules attached vertically on a conducting hydrowire to achieve a small diameter. Typically, three modules with four 4-liter bottles each are positioned above the conductivity-temperature-depth (CTD) module (Figure 2). The rosette package is lowered through the ice and retrieved at speeds up to 40 meters per minute using a small winch mounted in the aircraft. The hydrowire leads from the aircraft to a sheave hung from a tripod on the ice above the hole inside a tent that is heated to prevent water samples and sensors from freezing (Figure 3). The CTD data are acquired and displayed in real time on a laptop computer, and bottles are closed at desired depths electronically. Upon recovery, each water-bottle module is immediately placed in a cooler with bags of snow, which provide thermal stability within ± 2°C of the in situ temperature. The modules are returned to a base camp where they can be sampled and the samples processed under controlled conditions. A wide variety of water samples can be collected. Thus far, we have collected samples for salinity, dissolved oxygen, nutrients, helium isotopes, oxygen isotopes, chlorofluorocarbons, SF6, tritium, CO2, barium, and 129I. The quality of all samples has been excellent. Smethie et al. (2011) provide a detailed description of the rosette and its performance. Article in Journal/Newspaper Arctic Arctic Ocean International Polar Year IPY Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Ocean International Polar Year IPY rosette Oceanography GC1-1581 |
spellingShingle |
Arctic Ocean International Polar Year IPY rosette Oceanography GC1-1581 William M. Smethie Jr. Dale Chayes Richard Perry Peter Schlosser Ronny Friedrich A Rosette for Sampling Ice-Covered Water |
topic_facet |
Arctic Ocean International Polar Year IPY rosette Oceanography GC1-1581 |
description |
The Arctic Ocean is changing rapidly as Earth's climate warms. To document and understand these changing ocean conditions, we developed a rosette that collects high-quality oceanographic data and is deployed from an aircraft through a 30.5 cm diameter hole drilled in the ice (Figure 1). The rosette is modular, with the modules attached vertically on a conducting hydrowire to achieve a small diameter. Typically, three modules with four 4-liter bottles each are positioned above the conductivity-temperature-depth (CTD) module (Figure 2). The rosette package is lowered through the ice and retrieved at speeds up to 40 meters per minute using a small winch mounted in the aircraft. The hydrowire leads from the aircraft to a sheave hung from a tripod on the ice above the hole inside a tent that is heated to prevent water samples and sensors from freezing (Figure 3). The CTD data are acquired and displayed in real time on a laptop computer, and bottles are closed at desired depths electronically. Upon recovery, each water-bottle module is immediately placed in a cooler with bags of snow, which provide thermal stability within ± 2°C of the in situ temperature. The modules are returned to a base camp where they can be sampled and the samples processed under controlled conditions. A wide variety of water samples can be collected. Thus far, we have collected samples for salinity, dissolved oxygen, nutrients, helium isotopes, oxygen isotopes, chlorofluorocarbons, SF6, tritium, CO2, barium, and 129I. The quality of all samples has been excellent. Smethie et al. (2011) provide a detailed description of the rosette and its performance. |
format |
Article in Journal/Newspaper |
author |
William M. Smethie Jr. Dale Chayes Richard Perry Peter Schlosser Ronny Friedrich |
author_facet |
William M. Smethie Jr. Dale Chayes Richard Perry Peter Schlosser Ronny Friedrich |
author_sort |
William M. Smethie Jr. |
title |
A Rosette for Sampling Ice-Covered Water |
title_short |
A Rosette for Sampling Ice-Covered Water |
title_full |
A Rosette for Sampling Ice-Covered Water |
title_fullStr |
A Rosette for Sampling Ice-Covered Water |
title_full_unstemmed |
A Rosette for Sampling Ice-Covered Water |
title_sort |
rosette for sampling ice-covered water |
publisher |
The Oceanography Society |
publishDate |
2011 |
url |
https://doaj.org/article/37607e6f4fc94a3995d6ef80eaa00df5 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean International Polar Year IPY |
genre_facet |
Arctic Arctic Ocean International Polar Year IPY |
op_source |
Oceanography, Vol 24, Iss 3, Pp 160-161 (2011) |
op_relation |
http://tos.org/oceanography/archive/24-3_smethie.pdf https://doaj.org/toc/1042-8275 1042-8275 https://doaj.org/article/37607e6f4fc94a3995d6ef80eaa00df5 |
_version_ |
1766332919505223680 |