Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis
Dissolved inorganic carbon (DIC) is an important parameter to characterize the biogeochemical processes in sea ice and across the ocean-sea ice-atmosphere interface. The main challenge in bulk sea ice processing for DIC analysis is to melt the ice core without exposure to the air, which otherwise mi...
Published in: | Limnology and Oceanography: Methods |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/da/publications/assessment-and-improvement-of-the-sea-ice-processing-for-dissolved-inorganic-carbon-analysis(727623be-0c26-42a6-88e7-42d27b7d582a).html https://doi.org/10.1002/lom3.10229 https://pure.au.dk/ws/files/164673967/Hu_et_al_2018_Limnology_and_Oceanography_Methods.pdf |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/727623be-0c26-42a6-88e7-42d27b7d582a |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/727623be-0c26-42a6-88e7-42d27b7d582a 2023-05-15T16:29:55+02:00 Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis Hu, Yu-Bin Wang, Feiyue Boone, Wieter Barber, David Rysgaard, Soren 2018-02 application/pdf https://pure.au.dk/portal/da/publications/assessment-and-improvement-of-the-sea-ice-processing-for-dissolved-inorganic-carbon-analysis(727623be-0c26-42a6-88e7-42d27b7d582a).html https://doi.org/10.1002/lom3.10229 https://pure.au.dk/ws/files/164673967/Hu_et_al_2018_Limnology_and_Oceanography_Methods.pdf eng eng info:eu-repo/semantics/openAccess Hu , Y-B , Wang , F , Boone , W , Barber , D & Rysgaard , S 2018 , ' Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis ' , Limnology and Oceanography: Methods , vol. 16 , no. 2 , pp. 83-91 . https://doi.org/10.1002/lom3.10229 WEDDELL SEA IKAITE DYNAMICS GROWTH GAS CO2 DISSOCIATION CONSTANTS CRYSTALS SEAWATER article 2018 ftuniaarhuspubl https://doi.org/10.1002/lom3.10229 2023-03-08T23:56:14Z Dissolved inorganic carbon (DIC) is an important parameter to characterize the biogeochemical processes in sea ice and across the ocean-sea ice-atmosphere interface. The main challenge in bulk sea ice processing for DIC analysis is to melt the ice core without exposure to the air, which otherwise might contaminate the sample. A common practice is to seal the ice core in a gas-tight plastic bag and remove the air gently using a syringe or a hand pump. However, this procedure is time-consuming and the uncertainty in DIC concentration processed in this way has not been fully accessed. In this study, we modified the method by using a vacuum sealer and evaluated this procedure by examining the impact of ice sample processing, biological activity, gaseous CO2 initially present in sea ice, and the presence of ikaite (CaCO3 center dot 6H(2)O) crystals. The results show that no loss or gain in DIC occurs during the evacuation and ice melting process and that it might not be necessary to pre-poison the ice samples during the ice melting process. In addition, gaseous CO2 initially present in sea ice has a negligible impact on DIC analysis. If detectable ikaite crystals are present in sea ice, the measurement results should be referred to total inorganic carbon instead of DIC. The field test at Station Nord in Greenland demonstrates that the modified method is simple and quick to use even under the most remote and extreme environments. Article in Journal/Newspaper Greenland ice core Sea ice Weddell Sea Aarhus University: Research Greenland Station Nord ENVELOPE(-16.663,-16.663,81.599,81.599) Weddell Weddell Sea Limnology and Oceanography: Methods 16 2 83 91 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
WEDDELL SEA IKAITE DYNAMICS GROWTH GAS CO2 DISSOCIATION CONSTANTS CRYSTALS SEAWATER |
spellingShingle |
WEDDELL SEA IKAITE DYNAMICS GROWTH GAS CO2 DISSOCIATION CONSTANTS CRYSTALS SEAWATER Hu, Yu-Bin Wang, Feiyue Boone, Wieter Barber, David Rysgaard, Soren Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis |
topic_facet |
WEDDELL SEA IKAITE DYNAMICS GROWTH GAS CO2 DISSOCIATION CONSTANTS CRYSTALS SEAWATER |
description |
Dissolved inorganic carbon (DIC) is an important parameter to characterize the biogeochemical processes in sea ice and across the ocean-sea ice-atmosphere interface. The main challenge in bulk sea ice processing for DIC analysis is to melt the ice core without exposure to the air, which otherwise might contaminate the sample. A common practice is to seal the ice core in a gas-tight plastic bag and remove the air gently using a syringe or a hand pump. However, this procedure is time-consuming and the uncertainty in DIC concentration processed in this way has not been fully accessed. In this study, we modified the method by using a vacuum sealer and evaluated this procedure by examining the impact of ice sample processing, biological activity, gaseous CO2 initially present in sea ice, and the presence of ikaite (CaCO3 center dot 6H(2)O) crystals. The results show that no loss or gain in DIC occurs during the evacuation and ice melting process and that it might not be necessary to pre-poison the ice samples during the ice melting process. In addition, gaseous CO2 initially present in sea ice has a negligible impact on DIC analysis. If detectable ikaite crystals are present in sea ice, the measurement results should be referred to total inorganic carbon instead of DIC. The field test at Station Nord in Greenland demonstrates that the modified method is simple and quick to use even under the most remote and extreme environments. |
format |
Article in Journal/Newspaper |
author |
Hu, Yu-Bin Wang, Feiyue Boone, Wieter Barber, David Rysgaard, Soren |
author_facet |
Hu, Yu-Bin Wang, Feiyue Boone, Wieter Barber, David Rysgaard, Soren |
author_sort |
Hu, Yu-Bin |
title |
Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis |
title_short |
Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis |
title_full |
Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis |
title_fullStr |
Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis |
title_full_unstemmed |
Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis |
title_sort |
assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis |
publishDate |
2018 |
url |
https://pure.au.dk/portal/da/publications/assessment-and-improvement-of-the-sea-ice-processing-for-dissolved-inorganic-carbon-analysis(727623be-0c26-42a6-88e7-42d27b7d582a).html https://doi.org/10.1002/lom3.10229 https://pure.au.dk/ws/files/164673967/Hu_et_al_2018_Limnology_and_Oceanography_Methods.pdf |
long_lat |
ENVELOPE(-16.663,-16.663,81.599,81.599) |
geographic |
Greenland Station Nord Weddell Weddell Sea |
geographic_facet |
Greenland Station Nord Weddell Weddell Sea |
genre |
Greenland ice core Sea ice Weddell Sea |
genre_facet |
Greenland ice core Sea ice Weddell Sea |
op_source |
Hu , Y-B , Wang , F , Boone , W , Barber , D & Rysgaard , S 2018 , ' Assessment and improvement of the sea ice processing for dissolved inorganic carbon analysis ' , Limnology and Oceanography: Methods , vol. 16 , no. 2 , pp. 83-91 . https://doi.org/10.1002/lom3.10229 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/lom3.10229 |
container_title |
Limnology and Oceanography: Methods |
container_volume |
16 |
container_issue |
2 |
container_start_page |
83 |
op_container_end_page |
91 |
_version_ |
1766019623213334528 |