Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea
Icebergs affect local biological production around Antarctica. We used an ocean glider to observe the effects of a large iceberg that was advected by the Antarctic Slope Current along the continental slope in the northwestern Weddell Sea in early 2012. The high-resolution glider data reveal a pronou...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2015
|
Subjects: | |
Online Access: | https://authors.library.caltech.edu/56307/ https://authors.library.caltech.edu/56307/1/Biddle_et_al-2015-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/56307/2/grl52488-sup-0001-FigureS1.doc https://resolver.caltech.edu/CaltechAUTHORS:20150402-110650899 |
id |
ftcaltechauth:oai:authors.library.caltech.edu:56307 |
---|---|
record_format |
openpolar |
spelling |
ftcaltechauth:oai:authors.library.caltech.edu:56307 2023-05-15T13:57:16+02:00 Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea Biddle, Louise C. Kaiser, Jan Heywood, Karen J. Thompson, Andrew F. Jenkins, Adrian 2015-01-28 application/pdf application/msword https://authors.library.caltech.edu/56307/ https://authors.library.caltech.edu/56307/1/Biddle_et_al-2015-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/56307/2/grl52488-sup-0001-FigureS1.doc https://resolver.caltech.edu/CaltechAUTHORS:20150402-110650899 en eng American Geophysical Union https://authors.library.caltech.edu/56307/1/Biddle_et_al-2015-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/56307/2/grl52488-sup-0001-FigureS1.doc Biddle, Louise C. and Kaiser, Jan and Heywood, Karen J. and Thompson, Andrew F. and Jenkins, Adrian (2015) Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea. Geophysical Research Letters, 42 (2). pp. 459-465. ISSN 0094-8276. doi:10.1002/2014GL062850. https://resolver.caltech.edu/CaltechAUTHORS:20150402-110650899 <https://resolver.caltech.edu/CaltechAUTHORS:20150402-110650899> cc_by CC-BY Article PeerReviewed 2015 ftcaltechauth https://doi.org/10.1002/2014GL062850 2021-11-11T19:03:37Z Icebergs affect local biological production around Antarctica. We used an ocean glider to observe the effects of a large iceberg that was advected by the Antarctic Slope Current along the continental slope in the northwestern Weddell Sea in early 2012. The high-resolution glider data reveal a pronounced effect of the iceberg on ocean properties, with oxygen concentrations of (13 ± 4) μmol kg^(−1) higher than levels in surrounding waters, which are most likely due to positive net community production. This response was confined to three areas of water in the direct vicinity of the iceberg track, each no larger than 2 km^2. Our findings suggest that icebergs have an impact on Antarctic production presumably through local micronutrient injections, on a scale smaller than typical satellite observations of biological production in the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Antarctica Iceberg* Southern Ocean Weddell Sea Caltech Authors (California Institute of Technology) Antarctic Southern Ocean The Antarctic Weddell Weddell Sea Geophysical Research Letters 42 2 459 465 |
institution |
Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
Icebergs affect local biological production around Antarctica. We used an ocean glider to observe the effects of a large iceberg that was advected by the Antarctic Slope Current along the continental slope in the northwestern Weddell Sea in early 2012. The high-resolution glider data reveal a pronounced effect of the iceberg on ocean properties, with oxygen concentrations of (13 ± 4) μmol kg^(−1) higher than levels in surrounding waters, which are most likely due to positive net community production. This response was confined to three areas of water in the direct vicinity of the iceberg track, each no larger than 2 km^2. Our findings suggest that icebergs have an impact on Antarctic production presumably through local micronutrient injections, on a scale smaller than typical satellite observations of biological production in the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Biddle, Louise C. Kaiser, Jan Heywood, Karen J. Thompson, Andrew F. Jenkins, Adrian |
spellingShingle |
Biddle, Louise C. Kaiser, Jan Heywood, Karen J. Thompson, Andrew F. Jenkins, Adrian Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea |
author_facet |
Biddle, Louise C. Kaiser, Jan Heywood, Karen J. Thompson, Andrew F. Jenkins, Adrian |
author_sort |
Biddle, Louise C. |
title |
Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea |
title_short |
Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea |
title_full |
Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea |
title_fullStr |
Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea |
title_full_unstemmed |
Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea |
title_sort |
ocean glider observations of iceberg-enhanced biological production in the northwestern weddell sea |
publisher |
American Geophysical Union |
publishDate |
2015 |
url |
https://authors.library.caltech.edu/56307/ https://authors.library.caltech.edu/56307/1/Biddle_et_al-2015-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/56307/2/grl52488-sup-0001-FigureS1.doc https://resolver.caltech.edu/CaltechAUTHORS:20150402-110650899 |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Iceberg* Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Iceberg* Southern Ocean Weddell Sea |
op_relation |
https://authors.library.caltech.edu/56307/1/Biddle_et_al-2015-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/56307/2/grl52488-sup-0001-FigureS1.doc Biddle, Louise C. and Kaiser, Jan and Heywood, Karen J. and Thompson, Andrew F. and Jenkins, Adrian (2015) Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea. Geophysical Research Letters, 42 (2). pp. 459-465. ISSN 0094-8276. doi:10.1002/2014GL062850. https://resolver.caltech.edu/CaltechAUTHORS:20150402-110650899 <https://resolver.caltech.edu/CaltechAUTHORS:20150402-110650899> |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2014GL062850 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
2 |
container_start_page |
459 |
op_container_end_page |
465 |
_version_ |
1766264860772925440 |