Wintertime fCO2 variability in the subpolar North Atlantic since 2004
Winter data of surface ocean temperature (SST), salinity (SSS) and CO2 fugacity (fCO2) collected on the VOS M/V Nuka Arctica in the subpolar North Atlantic between 2004 and 2017 are used to establish trends, drivers, and interannual variability. Over the period, waters cooled and freshened, and the...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AGU
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/1956/21696 https://doi.org/10.1029/2018gl080554 |
id |
ftunivbergen:oai:bora.uib.no:1956/21696 |
---|---|
record_format |
openpolar |
spelling |
ftunivbergen:oai:bora.uib.no:1956/21696 2023-05-15T17:27:35+02:00 Wintertime fCO2 variability in the subpolar North Atlantic since 2004 Fröb, Friederike Olsen, Are Becker, Meike Chafik, Leon Martin Johannessen, Truls Reverdin, Gilles Omar, Abdirahman 2020-01-13T15:28:55Z application/pdf https://hdl.handle.net/1956/21696 https://doi.org/10.1029/2018gl080554 eng eng AGU Norges forskningsråd: 229752 Norges forskningsråd: 245927 urn:issn:1944-8007 urn:issn:0094-8276 https://hdl.handle.net/1956/21696 https://doi.org/10.1029/2018gl080554 cristin:1704566 Copyright 2019. American Geophysical Union. All Rights Reserved. Geophysical Research Letters Peer reviewed Journal article 2020 ftunivbergen https://doi.org/10.1029/2018gl080554 2023-03-14T17:44:35Z Winter data of surface ocean temperature (SST), salinity (SSS) and CO2 fugacity (fCO2) collected on the VOS M/V Nuka Arctica in the subpolar North Atlantic between 2004 and 2017 are used to establish trends, drivers, and interannual variability. Over the period, waters cooled and freshened, and the fCO2 increased at a rate similar to the atmospheric CO2 growth rate. When accounting for the freshening, the inferred increase in dissolved inorganic carbon (DIC) was found to be approximately twice that expected from atmospheric CO2 alone. This is attributed to the cooling. In the Irminger Sea, fCO2 exhibited additional interannual variations driven by atmospheric forcing through winter mixing. As winter fCO2 in the region is close to the atmospheric, the subpolar North Atlantic has varied between being slightly supersaturated and slightly undersaturated over the investigated period. publishedVersion Article in Journal/Newspaper North Atlantic University of Bergen: Bergen Open Research Archive (BORA-UiB) Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Geophysical Research Letters 46 3 1580 1590 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Winter data of surface ocean temperature (SST), salinity (SSS) and CO2 fugacity (fCO2) collected on the VOS M/V Nuka Arctica in the subpolar North Atlantic between 2004 and 2017 are used to establish trends, drivers, and interannual variability. Over the period, waters cooled and freshened, and the fCO2 increased at a rate similar to the atmospheric CO2 growth rate. When accounting for the freshening, the inferred increase in dissolved inorganic carbon (DIC) was found to be approximately twice that expected from atmospheric CO2 alone. This is attributed to the cooling. In the Irminger Sea, fCO2 exhibited additional interannual variations driven by atmospheric forcing through winter mixing. As winter fCO2 in the region is close to the atmospheric, the subpolar North Atlantic has varied between being slightly supersaturated and slightly undersaturated over the investigated period. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Fröb, Friederike Olsen, Are Becker, Meike Chafik, Leon Martin Johannessen, Truls Reverdin, Gilles Omar, Abdirahman |
spellingShingle |
Fröb, Friederike Olsen, Are Becker, Meike Chafik, Leon Martin Johannessen, Truls Reverdin, Gilles Omar, Abdirahman Wintertime fCO2 variability in the subpolar North Atlantic since 2004 |
author_facet |
Fröb, Friederike Olsen, Are Becker, Meike Chafik, Leon Martin Johannessen, Truls Reverdin, Gilles Omar, Abdirahman |
author_sort |
Fröb, Friederike |
title |
Wintertime fCO2 variability in the subpolar North Atlantic since 2004 |
title_short |
Wintertime fCO2 variability in the subpolar North Atlantic since 2004 |
title_full |
Wintertime fCO2 variability in the subpolar North Atlantic since 2004 |
title_fullStr |
Wintertime fCO2 variability in the subpolar North Atlantic since 2004 |
title_full_unstemmed |
Wintertime fCO2 variability in the subpolar North Atlantic since 2004 |
title_sort |
wintertime fco2 variability in the subpolar north atlantic since 2004 |
publisher |
AGU |
publishDate |
2020 |
url |
https://hdl.handle.net/1956/21696 https://doi.org/10.1029/2018gl080554 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Irminger Sea |
geographic_facet |
Irminger Sea |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geophysical Research Letters |
op_relation |
Norges forskningsråd: 229752 Norges forskningsråd: 245927 urn:issn:1944-8007 urn:issn:0094-8276 https://hdl.handle.net/1956/21696 https://doi.org/10.1029/2018gl080554 cristin:1704566 |
op_rights |
Copyright 2019. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.1029/2018gl080554 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
3 |
container_start_page |
1580 |
op_container_end_page |
1590 |
_version_ |
1766119756853673984 |