Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic
The Arctic marine system is currently undergoing transition as a result of climate change. This study examines the effects of this transition on rates of air-sea CO2 exchange within the eastern Canadian Arctic. Continuous seawater pCO2 measurements revealed this area to be a strong summertime sink o...
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ftunivmanitoba:oai:mspace.lib.umanitoba.ca:1993/30980 2023-06-18T03:38:47+02:00 Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic Burgers, Tonya Papakyriakou, Tim (Environment and Geography) Amiro, Brian (Soil Science) Ehn, Jens (Environment and Geography) 2015 application/pdf http://hdl.handle.net/1993/30980 eng eng http://hdl.handle.net/1993/30980 open access Arctic Ocean Seawater carbonate chemistry Freshwater Air-Sea Exchange CO2 master thesis 2015 ftunivmanitoba 2023-06-04T17:46:26Z The Arctic marine system is currently undergoing transition as a result of climate change. This study examines the effects of this transition on rates of air-sea CO2 exchange within the eastern Canadian Arctic. Continuous seawater pCO2 measurements revealed this area to be a strong summertime sink of atmospheric CO2. Total alkalinity and stable oxygen isotopes were utilized as freshwater tracers, revealing areas of significant sea ice melt and riverine inputs. Eastern Baffin Bay and Barrow Strait were found to be strongly influenced by sea ice melt, lowering seawater pCO2; whereas Kennedy Channel contained significant river discharge, raising seawater pCO2. Primary production in surface waters was low throughout the region, with the exception of Petermann Fjord where glacial ice melt likely transports nutrients to the surface. This region is anticipated to represent a weaker CO2 sink in the future, due mainly to predicted decreases in sea ice thickness and extent. February 2016 Master Thesis Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change Kennedy channel Petermann Fjord Sea ice MSpace at the University of Manitoba Arctic Arctic Ocean Baffin Bay Barrow Strait ENVELOPE(-94.168,-94.168,74.402,74.402) Kennedy Channel ENVELOPE(-66.139,-66.139,80.919,80.919) Petermann Fjord ENVELOPE(-61.500,-61.500,81.167,81.167) |
institution |
Open Polar |
collection |
MSpace at the University of Manitoba |
op_collection_id |
ftunivmanitoba |
language |
English |
topic |
Arctic Ocean Seawater carbonate chemistry Freshwater Air-Sea Exchange CO2 |
spellingShingle |
Arctic Ocean Seawater carbonate chemistry Freshwater Air-Sea Exchange CO2 Burgers, Tonya Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic |
topic_facet |
Arctic Ocean Seawater carbonate chemistry Freshwater Air-Sea Exchange CO2 |
description |
The Arctic marine system is currently undergoing transition as a result of climate change. This study examines the effects of this transition on rates of air-sea CO2 exchange within the eastern Canadian Arctic. Continuous seawater pCO2 measurements revealed this area to be a strong summertime sink of atmospheric CO2. Total alkalinity and stable oxygen isotopes were utilized as freshwater tracers, revealing areas of significant sea ice melt and riverine inputs. Eastern Baffin Bay and Barrow Strait were found to be strongly influenced by sea ice melt, lowering seawater pCO2; whereas Kennedy Channel contained significant river discharge, raising seawater pCO2. Primary production in surface waters was low throughout the region, with the exception of Petermann Fjord where glacial ice melt likely transports nutrients to the surface. This region is anticipated to represent a weaker CO2 sink in the future, due mainly to predicted decreases in sea ice thickness and extent. February 2016 |
author2 |
Papakyriakou, Tim (Environment and Geography) Amiro, Brian (Soil Science) Ehn, Jens (Environment and Geography) |
format |
Master Thesis |
author |
Burgers, Tonya |
author_facet |
Burgers, Tonya |
author_sort |
Burgers, Tonya |
title |
Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic |
title_short |
Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic |
title_full |
Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic |
title_fullStr |
Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic |
title_full_unstemmed |
Implications of a changing Arctic on summertime rates of air-sea CO2 exchange within the eastern Canadian Arctic |
title_sort |
implications of a changing arctic on summertime rates of air-sea co2 exchange within the eastern canadian arctic |
publishDate |
2015 |
url |
http://hdl.handle.net/1993/30980 |
long_lat |
ENVELOPE(-94.168,-94.168,74.402,74.402) ENVELOPE(-66.139,-66.139,80.919,80.919) ENVELOPE(-61.500,-61.500,81.167,81.167) |
geographic |
Arctic Arctic Ocean Baffin Bay Barrow Strait Kennedy Channel Petermann Fjord |
geographic_facet |
Arctic Arctic Ocean Baffin Bay Barrow Strait Kennedy Channel Petermann Fjord |
genre |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change Kennedy channel Petermann Fjord Sea ice |
genre_facet |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change Kennedy channel Petermann Fjord Sea ice |
op_relation |
http://hdl.handle.net/1993/30980 |
op_rights |
open access |
_version_ |
1769003648259457024 |