High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea
Abstract: Although predictions suggest that ocean acidification will significantly impact polar oceans within 20-30 years, there is limited information regarding present-day pH dynamics of the Southern Ocean. Here, we present novel high-frequency observations of pH collected during spring of 2010 us...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1046.9690 2023-05-15T13:46:19+02:00 High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea Paul G Matson Todd R Martz Gretchen E Hofmann The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9690 http://www.comm-tec.com/Docs/Library/pH/High-frequency%20observations%20of%20pH%20under%20Antarctic%20sea%20ice%20in%20the.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9690 http://www.comm-tec.com/Docs/Library/pH/High-frequency%20observations%20of%20pH%20under%20Antarctic%20sea%20ice%20in%20the.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.comm-tec.com/Docs/Library/pH/High-frequency%20observations%20of%20pH%20under%20Antarctic%20sea%20ice%20in%20the.pdf text ftciteseerx 2020-04-05T00:20:31Z Abstract: Although predictions suggest that ocean acidification will significantly impact polar oceans within 20-30 years, there is limited information regarding present-day pH dynamics of the Southern Ocean. Here, we present novel high-frequency observations of pH collected during spring of 2010 using SeaFET pH sensors at three locations under fast sea ice in the southern Ross Sea. During these deployments in McMurdo Sound, baseline pH ranged between 8.019-8.045, with low to moderate overall variation (0.043-0.114 units) on the scale of hours to days. The variation was predominantly in the direction of increased pH relative to baseline observations. Estimates of aragonite saturation state (V Ar ) were . 1 with no observations of subsaturation. Time series records such as these are significant to the Antarctic science community; this information can be leveraged towards framing more environmentally relevant laboratory experiments aimed at assessing the vulnerability of Antarctic species to ocean acidification. In addition, increased spatial and temporal coverage of pH datasets may reveal ecologically significant patterns. Specifically, whether such variation in natural ocean pH dynamics may drive local adaptation to pH variation or provide refugia for populations of marine calcifiers in a future, acidifying ocean. Text Antarc* Antarctic McMurdo Sound Ocean acidification Ross Sea Sea ice Southern Ocean Unknown Antarctic McMurdo Sound Ross Sea Southern Ocean The Antarctic |
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Abstract: Although predictions suggest that ocean acidification will significantly impact polar oceans within 20-30 years, there is limited information regarding present-day pH dynamics of the Southern Ocean. Here, we present novel high-frequency observations of pH collected during spring of 2010 using SeaFET pH sensors at three locations under fast sea ice in the southern Ross Sea. During these deployments in McMurdo Sound, baseline pH ranged between 8.019-8.045, with low to moderate overall variation (0.043-0.114 units) on the scale of hours to days. The variation was predominantly in the direction of increased pH relative to baseline observations. Estimates of aragonite saturation state (V Ar ) were . 1 with no observations of subsaturation. Time series records such as these are significant to the Antarctic science community; this information can be leveraged towards framing more environmentally relevant laboratory experiments aimed at assessing the vulnerability of Antarctic species to ocean acidification. In addition, increased spatial and temporal coverage of pH datasets may reveal ecologically significant patterns. Specifically, whether such variation in natural ocean pH dynamics may drive local adaptation to pH variation or provide refugia for populations of marine calcifiers in a future, acidifying ocean. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Paul G Matson Todd R Martz Gretchen E Hofmann |
spellingShingle |
Paul G Matson Todd R Martz Gretchen E Hofmann High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea |
author_facet |
Paul G Matson Todd R Martz Gretchen E Hofmann |
author_sort |
Paul G Matson |
title |
High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea |
title_short |
High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea |
title_full |
High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea |
title_fullStr |
High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea |
title_full_unstemmed |
High-frequency observations of pH under Antarctic sea ice in the southern Ross Sea |
title_sort |
high-frequency observations of ph under antarctic sea ice in the southern ross sea |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9690 http://www.comm-tec.com/Docs/Library/pH/High-frequency%20observations%20of%20pH%20under%20Antarctic%20sea%20ice%20in%20the.pdf |
geographic |
Antarctic McMurdo Sound Ross Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic McMurdo Sound Ross Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic McMurdo Sound Ocean acidification Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic McMurdo Sound Ocean acidification Ross Sea Sea ice Southern Ocean |
op_source |
http://www.comm-tec.com/Docs/Library/pH/High-frequency%20observations%20of%20pH%20under%20Antarctic%20sea%20ice%20in%20the.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9690 http://www.comm-tec.com/Docs/Library/pH/High-frequency%20observations%20of%20pH%20under%20Antarctic%20sea%20ice%20in%20the.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766240019677184000 |