FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS
Abstract: Within existing ice covers, we found fluid motion can also be driven by freezing-induced convection. Surface snow-slush and near-surface highly porous layers were found in the pack ice at Ice Station Weddell in the western Weddell Sea at end of summer and examined for physical and biologic...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.536.536 2023-05-15T14:00:20+02:00 FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS Stephen F. Ackley Christian H. Fritsen Victoria I. Lytle Cornelius W. Sullivan The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.536 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1996-Ackley.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.536 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1996-Ackley.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1996-Ackley.pdf text ftciteseerx 2016-01-08T10:50:33Z Abstract: Within existing ice covers, we found fluid motion can also be driven by freezing-induced convection. Surface snow-slush and near-surface highly porous layers were found in the pack ice at Ice Station Weddell in the western Weddell Sea at end of summer and examined for physical and biological processes. Convective fluid motion, driven by brine rejection from the ice freezing from above as air temperatures dropped, replaced nutrient depleted waters in the layers with nutrient rich sea water from below. The upwelling nutrients fueled autumn blooms of algae in second-year ice in the near surface regions of the ice cover where sufficient light is also available. Both the timing and location of these blooms within the ice cover are unlike the bottom spring blooms of sea ice algae previously observed. 1. Text Antarc* Antarctic ice algae Sea ice Weddell Sea Unknown Antarctic Weddell Weddell Sea |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
Abstract: Within existing ice covers, we found fluid motion can also be driven by freezing-induced convection. Surface snow-slush and near-surface highly porous layers were found in the pack ice at Ice Station Weddell in the western Weddell Sea at end of summer and examined for physical and biological processes. Convective fluid motion, driven by brine rejection from the ice freezing from above as air temperatures dropped, replaced nutrient depleted waters in the layers with nutrient rich sea water from below. The upwelling nutrients fueled autumn blooms of algae in second-year ice in the near surface regions of the ice cover where sufficient light is also available. Both the timing and location of these blooms within the ice cover are unlike the bottom spring blooms of sea ice algae previously observed. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Stephen F. Ackley Christian H. Fritsen Victoria I. Lytle Cornelius W. Sullivan |
spellingShingle |
Stephen F. Ackley Christian H. Fritsen Victoria I. Lytle Cornelius W. Sullivan FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS |
author_facet |
Stephen F. Ackley Christian H. Fritsen Victoria I. Lytle Cornelius W. Sullivan |
author_sort |
Stephen F. Ackley |
title |
FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS |
title_short |
FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS |
title_full |
FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS |
title_fullStr |
FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS |
title_full_unstemmed |
FREEZING DRIVEN UPWELLING IN ANTARCTIC SEA ICE BIOLOGICAL SYSTEMS |
title_sort |
freezing driven upwelling in antarctic sea ice biological systems |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.536 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1996-Ackley.pdf |
geographic |
Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic ice algae Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic ice algae Sea ice Weddell Sea |
op_source |
http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1996-Ackley.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.536 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1996-Ackley.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766269377731100672 |