Tracking the variable North Atlantic sink for atmospheric CO2

The oceans are a major sink for atmospheric carbon dioxide (CO2). Historically, observations have been too sparse to allow accurate tracking of changes in rates of CO2 uptake over ocean basins, so little is known about how these vary. Here, we show observations indicating substantial variability in...

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Bibliographic Details
Published in:Science
Main Authors: Watson, Andrew J., Schuster, Ute, Bakker, Dorothee C.E., Bates, Nicholas R., Corbière, Antoine, González-Davila, Melchor, Friedrich, Tobias, Hauck, Judith, Heinze, Christoph, Johannessen, Truls, Körtzinger, Arne, Metzl, Nicolas, Olafsson, Jon, Olsen, Are, Oschlies, Andreas, Antonio Padin, X., Pfeil, Benjamin, Santana-Casiano, J. Magdalena, Steinhoff, Tobias, Telszewski, Maciej, Rios, Aida F., Wallace, Douglas W.R., Wanninkhof, Rik
Other Authors: SANTANA CASIANO, JUANA MAGDALENA, Kortzinger, Arne, GONZALEZ DAVILA, MELCHOR, Bakker, Dorothee, metzl, nicolas, Watson, Andrew, 7403383819, 23478875000, 7102601507, 35400291900, 16051898600, 6603931257, 35339026300, 36127520000, 7004365480, 7004349500, 6602001734, 6603288138, 57062310200, 7202795681, 6701696403, 35274305100, 35275738200, 6701344294, 26030671700, 33267849000, 7103240290, 7402643237, 56264081100, 26576, 1053589, 485704, 235394, 5121871, 518149, 241365, 1900432, 423475, 426545, 463070, 476700, 509170, 559125, 157708, 1587730
Format: Article in Journal/Newspaper
Language:English
Published: 2009
Subjects:
251002 Oceanografía química
Oceans
Carbon dioxide
Oceanic climates
Time series
Ships
Atmospheric models
Analytical estimating
Land
Research facilities
North Atlantic
Online Access:http://hdl.handle.net/10553/49807
https://doi.org/10.1126/science.1177394
Description
Summary:The oceans are a major sink for atmospheric carbon dioxide (CO2). Historically, observations have been too sparse to allow accurate tracking of changes in rates of CO2 uptake over ocean basins, so little is known about how these vary. Here, we show observations indicating substantial variability in the CO2 uptake by the North Atlantic on time scales of a few years. Further, we use measurements from a coordinated network of instrumented commercial ships to define the annual flux into the North Atlantic, for the year 2005, to a precision of about 10%. This approach offers the prospect of accurately monitoring the changing ocean CO2 sink for those ocean basins that are well covered by shipping routes. 1393 1391

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