Increased CO2 uptake due to sea ice growth and decay in the Nordic Seas

S. Rysgaard, J. Bendtsen, L. T. Pedersen, Hans Ramløv, R. N. Glud

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

    Resumé

    The uptake rates of atmospheric CO2 in the Nordic Seas are among the highest in the world's oceans. This has been ascribed mainly to a strong biological drawdown, but chemical processes within the sea ice itself have also been suggested to play a role. The importance of sea ice for the carbon uptake in the Nordic Seas is currently unknown. We present evidence from 50 localities in the Arctic Ocean that dissolved inorganic carbon is rejected together with brine from growing sea ice and that sea ice melting during summer is rich in carbonates. Model calculations show that melting of sea ice exported from the Arctic Ocean into the East Greenland current and the Nordic Seas plays an important and overlooked role in regulating the surface water partial pressure of CO2 and increases the seasonal CO2 uptake in the area by approximately 50%.
    OriginalsprogEngelsk
    TidsskriftJournal of Geophysical Research - Oceans
    Vol/bind114
    Udgave nummer9
    ISSN0148-0227
    DOI
    StatusUdgivet - 2009

    Bibliografisk note

    Art. no. C09011

    Citer dette

    Rysgaard, S. ; Bendtsen, J. ; Pedersen, L. T. ; Ramløv, Hans ; Glud, R. N. / Increased CO2 uptake due to sea ice growth and decay in the Nordic Seas. I: Journal of Geophysical Research - Oceans. 2009 ; Bind 114, Nr. 9.
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    title = "Increased CO2 uptake due to sea ice growth and decay in the Nordic Seas",
    abstract = "The uptake rates of atmospheric CO2 in the Nordic Seas are among the highest in the world's oceans. This has been ascribed mainly to a strong biological drawdown, but chemical processes within the sea ice itself have also been suggested to play a role. The importance of sea ice for the carbon uptake in the Nordic Seas is currently unknown. We present evidence from 50 localities in the Arctic Ocean that dissolved inorganic carbon is rejected together with brine from growing sea ice and that sea ice melting during summer is rich in carbonates. Model calculations show that melting of sea ice exported from the Arctic Ocean into the East Greenland current and the Nordic Seas plays an important and overlooked role in regulating the surface water partial pressure of CO2 and increases the seasonal CO2 uptake in the area by approximately 50{\%}.",
    author = "S. Rysgaard and J. Bendtsen and Pedersen, {L. T.} and Hans Raml{\o}v and Glud, {R. N.}",
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    Increased CO2 uptake due to sea ice growth and decay in the Nordic Seas. / Rysgaard, S.; Bendtsen, J.; Pedersen, L. T.; Ramløv, Hans; Glud, R. N.

    I: Journal of Geophysical Research - Oceans, Bind 114, Nr. 9, 2009.

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

    TY - JOUR

    T1 - Increased CO2 uptake due to sea ice growth and decay in the Nordic Seas

    AU - Rysgaard, S.

    AU - Bendtsen, J.

    AU - Pedersen, L. T.

    AU - Ramløv, Hans

    AU - Glud, R. N.

    N1 - Art. no. C09011

    PY - 2009

    Y1 - 2009

    N2 - The uptake rates of atmospheric CO2 in the Nordic Seas are among the highest in the world's oceans. This has been ascribed mainly to a strong biological drawdown, but chemical processes within the sea ice itself have also been suggested to play a role. The importance of sea ice for the carbon uptake in the Nordic Seas is currently unknown. We present evidence from 50 localities in the Arctic Ocean that dissolved inorganic carbon is rejected together with brine from growing sea ice and that sea ice melting during summer is rich in carbonates. Model calculations show that melting of sea ice exported from the Arctic Ocean into the East Greenland current and the Nordic Seas plays an important and overlooked role in regulating the surface water partial pressure of CO2 and increases the seasonal CO2 uptake in the area by approximately 50%.

    AB - The uptake rates of atmospheric CO2 in the Nordic Seas are among the highest in the world's oceans. This has been ascribed mainly to a strong biological drawdown, but chemical processes within the sea ice itself have also been suggested to play a role. The importance of sea ice for the carbon uptake in the Nordic Seas is currently unknown. We present evidence from 50 localities in the Arctic Ocean that dissolved inorganic carbon is rejected together with brine from growing sea ice and that sea ice melting during summer is rich in carbonates. Model calculations show that melting of sea ice exported from the Arctic Ocean into the East Greenland current and the Nordic Seas plays an important and overlooked role in regulating the surface water partial pressure of CO2 and increases the seasonal CO2 uptake in the area by approximately 50%.

    U2 - 10.1029/2008JC005088

    DO - 10.1029/2008JC005088

    M3 - Journal article

    VL - 114

    JO - Journal of Geophysical Research

    JF - Journal of Geophysical Research

    SN - 0148-0227

    IS - 9

    ER -