Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean
Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycles 21 (2007): GB4001, doi:10.1029/2006GB002825. New observations fro...
Published in: | Global Biogeochemical Cycles |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2007
|
Subjects: | |
Online Access: | https://hdl.handle.net/1912/3404 |
id |
ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3404 |
---|---|
record_format |
openpolar |
spelling |
ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3404 2023-05-15T17:29:21+02:00 Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean Thomas, Helmuth Prowe, A. E. Friederike van Heuven, Steven Bozec, Yann Baar, Hein J. W. de Schiettecatte, Laure-Sophie Suykens, Kim Kone, Mathieu Borges, Alberto V. Lima, Ivan D. Doney, Scott C. 2007-10-06 application/pdf https://hdl.handle.net/1912/3404 en_US eng American Geophysical Union https://doi.org/10.1029/2006GB002825 Global Biogeochemical Cycles 21 (2007): GB4001 https://hdl.handle.net/1912/3404 doi:10.1029/2006GB002825 Global Biogeochemical Cycles 21 (2007): GB4001 doi:10.1029/2006GB002825 Anthropogenic CO2 Revelle factor North Sea Article 2007 ftwhoas https://doi.org/10.1029/2006GB002825 2022-05-28T22:57:58Z Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycles 21 (2007): GB4001, doi:10.1029/2006GB002825. New observations from the North Sea, a NW European shelf sea, show that between 2001 and 2005 the CO2 partial pressure (pCO2) in surface waters rose by 22 μatm, thus faster than atmospheric pCO2, which in the same period rose approximately 11 μatm. The surprisingly rapid decline in air-sea partial pressure difference (ΔpCO2) is primarily a response to an elevated water column inventory of dissolved inorganic carbon (DIC), which, in turn, reflects mostly anthropogenic CO2 input rather than natural interannual variability. The resulting decline in the buffering capacity of the inorganic carbonate system (increasing Revelle factor) sets up a theoretically predicted feedback loop whereby the invasion of anthropogenic CO2 reduces the ocean's ability to uptake additional CO2. Model simulations for the North Atlantic Ocean and thermodynamic principles reveal that this feedback should be stronger, at present, in colder midlatitude and subpolar waters because of the lower present-day buffer capacity and elevated DIC levels driven either by northward advected surface water and/or excess local air-sea CO2 uptake. This buffer capacity feedback mechanism helps to explain at least part of the observed trend of decreasing air-sea ΔpCO2 over time as reported in several other recent North Atlantic studies. S. Doney and I. Lima were supported by NSF/ONR NOPP (N000140210370) and NASA (NNG05GG30G). Article in Journal/Newspaper North Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Global Biogeochemical Cycles 21 4 n/a n/a |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Anthropogenic CO2 Revelle factor North Sea |
spellingShingle |
Anthropogenic CO2 Revelle factor North Sea Thomas, Helmuth Prowe, A. E. Friederike van Heuven, Steven Bozec, Yann Baar, Hein J. W. de Schiettecatte, Laure-Sophie Suykens, Kim Kone, Mathieu Borges, Alberto V. Lima, Ivan D. Doney, Scott C. Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean |
topic_facet |
Anthropogenic CO2 Revelle factor North Sea |
description |
Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycles 21 (2007): GB4001, doi:10.1029/2006GB002825. New observations from the North Sea, a NW European shelf sea, show that between 2001 and 2005 the CO2 partial pressure (pCO2) in surface waters rose by 22 μatm, thus faster than atmospheric pCO2, which in the same period rose approximately 11 μatm. The surprisingly rapid decline in air-sea partial pressure difference (ΔpCO2) is primarily a response to an elevated water column inventory of dissolved inorganic carbon (DIC), which, in turn, reflects mostly anthropogenic CO2 input rather than natural interannual variability. The resulting decline in the buffering capacity of the inorganic carbonate system (increasing Revelle factor) sets up a theoretically predicted feedback loop whereby the invasion of anthropogenic CO2 reduces the ocean's ability to uptake additional CO2. Model simulations for the North Atlantic Ocean and thermodynamic principles reveal that this feedback should be stronger, at present, in colder midlatitude and subpolar waters because of the lower present-day buffer capacity and elevated DIC levels driven either by northward advected surface water and/or excess local air-sea CO2 uptake. This buffer capacity feedback mechanism helps to explain at least part of the observed trend of decreasing air-sea ΔpCO2 over time as reported in several other recent North Atlantic studies. S. Doney and I. Lima were supported by NSF/ONR NOPP (N000140210370) and NASA (NNG05GG30G). |
format |
Article in Journal/Newspaper |
author |
Thomas, Helmuth Prowe, A. E. Friederike van Heuven, Steven Bozec, Yann Baar, Hein J. W. de Schiettecatte, Laure-Sophie Suykens, Kim Kone, Mathieu Borges, Alberto V. Lima, Ivan D. Doney, Scott C. |
author_facet |
Thomas, Helmuth Prowe, A. E. Friederike van Heuven, Steven Bozec, Yann Baar, Hein J. W. de Schiettecatte, Laure-Sophie Suykens, Kim Kone, Mathieu Borges, Alberto V. Lima, Ivan D. Doney, Scott C. |
author_sort |
Thomas, Helmuth |
title |
Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean |
title_short |
Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean |
title_full |
Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean |
title_fullStr |
Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean |
title_full_unstemmed |
Rapid decline of the CO2 buffering capacity in the North Sea and implications for the North Atlantic Ocean |
title_sort |
rapid decline of the co2 buffering capacity in the north sea and implications for the north atlantic ocean |
publisher |
American Geophysical Union |
publishDate |
2007 |
url |
https://hdl.handle.net/1912/3404 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Global Biogeochemical Cycles 21 (2007): GB4001 doi:10.1029/2006GB002825 |
op_relation |
https://doi.org/10.1029/2006GB002825 Global Biogeochemical Cycles 21 (2007): GB4001 https://hdl.handle.net/1912/3404 doi:10.1029/2006GB002825 |
op_doi |
https://doi.org/10.1029/2006GB002825 |
container_title |
Global Biogeochemical Cycles |
container_volume |
21 |
container_issue |
4 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1766123260172304384 |