Effect of ikaite precipitation on phosphate removal in sea ice
Ikaite (CaCO3·6H2O) precipitation in sea ice has been shown to affect CO2 exchange between the atmosphere and ocean. A laboratory study indicates that it could also co-precipitate phosphate from sea ice, which has the potential to affect sea-ice biogeochemical processes. However, the relative import...
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Norwegian Polar Institute
2020
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Online Access: | https://doi.org/10.33265/polar.v39.3413 https://doaj.org/article/3ead85b402704265aab2f462bb2dc0c0 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:3ead85b402704265aab2f462bb2dc0c0 2023-05-15T16:27:11+02:00 Effect of ikaite precipitation on phosphate removal in sea ice Yu-Bin Hu Feiyue Wang 2020-07-01 https://doi.org/10.33265/polar.v39.3413 https://doaj.org/article/3ead85b402704265aab2f462bb2dc0c0 en eng Norwegian Polar Institute 1751-8369 doi:10.33265/polar.v39.3413 https://doaj.org/article/3ead85b402704265aab2f462bb2dc0c0 undefined Polar Research, Vol 39, Iss 0, Pp 1-5 (2020) co-precipitation surface ice frost flowers greenland envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.33265/polar.v39.3413 2023-01-22T17:57:18Z Ikaite (CaCO3·6H2O) precipitation in sea ice has been shown to affect CO2 exchange between the atmosphere and ocean. A laboratory study indicates that it could also co-precipitate phosphate from sea ice, which has the potential to affect sea-ice biogeochemical processes. However, the relative importance of ikaite precipitation on phosphate removal under sea-ice conditions remains unknown. We investigated ikaite precipitation in both frost flowers and seaice (under two scenarios: flooded by seawater and non-flooded) in an outdoor sea-ice mesocosm experiment, and in sea ice under natural conditions in north-eastern Greenland. The ice mesocosm experiment showed that ikaite was highly enriched in frost flowers with a concentration of up to 350 µmol·kg–1. Ikaite was also detected in the surface layer of sea ice, ranging from ca. 13 µmol·kg–1 in the non-flooded ice to ca. 95 µmol·kg–1 in the flooded ice. However, under all these conditions, no phosphate co-precipitation with ikaite was observed. The field study in Greenland showed similar results: ikaite was detected in surface ice with an average concentration of 13.8 µmol·kg–1, but no phosphate removal due to ikaite precipitation was observed. These results suggest that the impact of ikaite precipitation on phosphate and the sea-ice ecosystem might not be as significant as imagined previously. Article in Journal/Newspaper Greenland Polar Research Sea ice Unknown Greenland Polar Research 39 0 |
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Open Polar |
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op_collection_id |
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language |
English |
topic |
co-precipitation surface ice frost flowers greenland envir geo |
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co-precipitation surface ice frost flowers greenland envir geo Yu-Bin Hu Feiyue Wang Effect of ikaite precipitation on phosphate removal in sea ice |
topic_facet |
co-precipitation surface ice frost flowers greenland envir geo |
description |
Ikaite (CaCO3·6H2O) precipitation in sea ice has been shown to affect CO2 exchange between the atmosphere and ocean. A laboratory study indicates that it could also co-precipitate phosphate from sea ice, which has the potential to affect sea-ice biogeochemical processes. However, the relative importance of ikaite precipitation on phosphate removal under sea-ice conditions remains unknown. We investigated ikaite precipitation in both frost flowers and seaice (under two scenarios: flooded by seawater and non-flooded) in an outdoor sea-ice mesocosm experiment, and in sea ice under natural conditions in north-eastern Greenland. The ice mesocosm experiment showed that ikaite was highly enriched in frost flowers with a concentration of up to 350 µmol·kg–1. Ikaite was also detected in the surface layer of sea ice, ranging from ca. 13 µmol·kg–1 in the non-flooded ice to ca. 95 µmol·kg–1 in the flooded ice. However, under all these conditions, no phosphate co-precipitation with ikaite was observed. The field study in Greenland showed similar results: ikaite was detected in surface ice with an average concentration of 13.8 µmol·kg–1, but no phosphate removal due to ikaite precipitation was observed. These results suggest that the impact of ikaite precipitation on phosphate and the sea-ice ecosystem might not be as significant as imagined previously. |
format |
Article in Journal/Newspaper |
author |
Yu-Bin Hu Feiyue Wang |
author_facet |
Yu-Bin Hu Feiyue Wang |
author_sort |
Yu-Bin Hu |
title |
Effect of ikaite precipitation on phosphate removal in sea ice |
title_short |
Effect of ikaite precipitation on phosphate removal in sea ice |
title_full |
Effect of ikaite precipitation on phosphate removal in sea ice |
title_fullStr |
Effect of ikaite precipitation on phosphate removal in sea ice |
title_full_unstemmed |
Effect of ikaite precipitation on phosphate removal in sea ice |
title_sort |
effect of ikaite precipitation on phosphate removal in sea ice |
publisher |
Norwegian Polar Institute |
publishDate |
2020 |
url |
https://doi.org/10.33265/polar.v39.3413 https://doaj.org/article/3ead85b402704265aab2f462bb2dc0c0 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Polar Research Sea ice |
genre_facet |
Greenland Polar Research Sea ice |
op_source |
Polar Research, Vol 39, Iss 0, Pp 1-5 (2020) |
op_relation |
1751-8369 doi:10.33265/polar.v39.3413 https://doaj.org/article/3ead85b402704265aab2f462bb2dc0c0 |
op_rights |
undefined |
op_doi |
https://doi.org/10.33265/polar.v39.3413 |
container_title |
Polar Research |
container_volume |
39 |
container_issue |
0 |
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1766016272206659584 |