AustralieFrV1, Main, Exploration, bibRecord, 008000

Trends in North Atlantic sea-surface fC02 from 1990 to 2006

Identifieur interne : 008000 ( Main/Exploration ); précédent : 007F99; suivant : 008001

Trends in North Atlantic sea-surface fC02 from 1990 to 2006

Auteurs : U. Schuster [Royaume-Uni] ; A. J. Watson [Royaume-Uni] ; N. R. Bates ; A. Corbiere [France] ; M. Gonzalez-Davila [Espagne] ; N. Metzl [France] ; D. Pierrot [États-Unis] ; M. Santana-Casiano [Espagne]

Source :

Deep-sea research. Part 2. Topical studies in oceanography [ 0967-0645 ] ; 2009.

RBID : Pascal:09-0358081

Descripteurs français

Pascal (Inist)
- Analyse tendance, Surface marine, Série temporelle, Variation annuelle, Zone subtropicale, Atmosphère, Air, Latitude, Basse fréquence, Oscillation Atlantique Nord, Plomb, Température surface marine, Circulation, Mixage, Mélangeage, Océan Atlantique Nord, Mer du Nord.
Wicri :
- topic : Zone subtropicale, Atmosphère, Plomb, Mer du Nord.

English descriptors

KwdEn :
- Mixing, North Atlantic, North Atlantic oscillation, North Sea, Sea surface, Sea surface temperature, Time series, air, annual variations, atmosphere, circulation, latitude, lead, low frequency, mixing, subtropical zone, trend-surface analysis.

Abstract

We examine observations from 1990 to 2006 from four voluntary observing ships and two time-series stations in the North Atlantic, fitting a sinusoidal annual cycle and linear year-on-year trend at all locations where there are sufficient data. Results show that in the subtropical regions, sea-surface fCO₂ has closely followed the increasing trend in atmospheric fCO₂. In contrast, farther north, sea-surface fCO₂ has increased faster than fCO₂ in the atmosphere. The resulting ΔfCO₂, driving air-sea flux of CO₂, has therefore decreased in the North Atlantic, particularly at higher latitudes, as has the annual mean air-sea flux. Several underlying causes may have led to the observed changes in sea-surface fCO₂. Low-frequency modes, such as the North Atlantic Oscillation, lead to changes in the sea-surface temperature, in sea-surface circulation and in vertical mixing, affecting sea-surface fCO₂ through biogeochemical processes. A comparison with measurements covering a longer time period shows that the sea-surface fCO₂ rise has accelerated since 1990 in the northern North Atlantic.

Affiliations:

Espagne, France, Royaume-Uni, États-Unis
Canaries, Île-de-France
Paris

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Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Trends in North Atlantic sea-surface fC0<sub>2</sub>
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<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Laboratoire d'Océanographie et du Climat, LOCEAN/IPSL, CNRS, Université Pierre, et Marie Curie</s1>
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<affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration</s1>
<s2>Miami, FL</s2>
<s3>USA</s3>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Miami, FL</wicri:noRegion>
</affiliation>
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<author><name sortKey="Santana Casiano, M" sort="Santana Casiano, M" uniqKey="Santana Casiano M" first="M." last="Santana-Casiano">M. Santana-Casiano</name>
<affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Department of Marine Chemistry, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de</s1>
<s2>Gran Canaria</s2>
<s3>ESP</s3>
<sZ>5 aut.</sZ>
<sZ>8 aut.</sZ>
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<country>Espagne</country>
<placeName><region nuts="2" type="communauté">Canaries</region>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Mixing</term>
<term>North Atlantic</term>
<term>North Atlantic oscillation</term>
<term>North Sea</term>
<term>Sea surface</term>
<term>Sea surface temperature</term>
<term>Time series</term>
<term>air</term>
<term>annual variations</term>
<term>atmosphere</term>
<term>circulation</term>
<term>latitude</term>
<term>lead</term>
<term>low frequency</term>
<term>mixing</term>
<term>subtropical zone</term>
<term>trend-surface analysis</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Analyse tendance</term>
<term>Surface marine</term>
<term>Série temporelle</term>
<term>Variation annuelle</term>
<term>Zone subtropicale</term>
<term>Atmosphère</term>
<term>Air</term>
<term>Latitude</term>
<term>Basse fréquence</term>
<term>Oscillation Atlantique Nord</term>
<term>Plomb</term>
<term>Température surface marine</term>
<term>Circulation</term>
<term>Mixage</term>
<term>Mélangeage</term>
<term>Océan Atlantique Nord</term>
<term>Mer du Nord</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Zone subtropicale</term>
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<front><div type="abstract" xml:lang="en">We examine observations from 1990 to 2006 from four voluntary observing ships and two time-series stations in the North Atlantic, fitting a sinusoidal annual cycle and linear year-on-year trend at all locations where there are sufficient data. Results show that in the subtropical regions, sea-surface fCO<sub>2</sub>
 has closely followed the increasing trend in atmospheric fCO<sub>2</sub>
. In contrast, farther north, sea-surface fCO<sub>2</sub>
 has increased faster than fCO<sub>2</sub>
 in the atmosphere. The resulting ΔfCO<sub>2</sub>
, driving air-sea flux of CO<sub>2</sub>
, has therefore decreased in the North Atlantic, particularly at higher latitudes, as has the annual mean air-sea flux. Several underlying causes may have led to the observed changes in sea-surface fCO<sub>2</sub>
. Low-frequency modes, such as the North Atlantic Oscillation, lead to changes in the sea-surface temperature, in sea-surface circulation and in vertical mixing, affecting sea-surface fCO<sub>2</sub>
 through biogeochemical processes. A comparison with measurements covering a longer time period shows that the sea-surface fCO<sub>2</sub>
 rise has accelerated since 1990 in the northern North Atlantic.</div>
</front>
</TEI>
<affiliations><list><country><li>Espagne</li>
<li>France</li>
<li>Royaume-Uni</li>
<li>États-Unis</li>
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<li>Île-de-France</li>
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<settlement><li>Paris</li>
</settlement>
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<tree><noCountry><name sortKey="Bates, N R" sort="Bates, N R" uniqKey="Bates N" first="N. R." last="Bates">N. R. Bates</name>
</noCountry>
<country name="Royaume-Uni"><noRegion><name sortKey="Schuster, U" sort="Schuster, U" uniqKey="Schuster U" first="U." last="Schuster">U. Schuster</name>
</noRegion>
<name sortKey="Watson, A J" sort="Watson, A J" uniqKey="Watson A" first="A. J." last="Watson">A. J. Watson</name>
</country>
<country name="France"><region name="Île-de-France"><name sortKey="Corbiere, A" sort="Corbiere, A" uniqKey="Corbiere A" first="A." last="Corbiere">A. Corbiere</name>
</region>
<name sortKey="Metzl, N" sort="Metzl, N" uniqKey="Metzl N" first="N." last="Metzl">N. Metzl</name>
</country>
<country name="Espagne"><region name="Canaries"><name sortKey="Gonzalez Davila, M" sort="Gonzalez Davila, M" uniqKey="Gonzalez Davila M" first="M." last="Gonzalez-Davila">M. Gonzalez-Davila</name>
</region>
<name sortKey="Santana Casiano, M" sort="Santana Casiano, M" uniqKey="Santana Casiano M" first="M." last="Santana-Casiano">M. Santana-Casiano</name>
</country>
<country name="États-Unis"><noRegion><name sortKey="Pierrot, D" sort="Pierrot, D" uniqKey="Pierrot D" first="D." last="Pierrot">D. Pierrot</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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Trends in North Atlantic sea-surface fC02 from 1990 to 2006

Trends in North Atlantic sea-surface fC02 from 1990 to 2006

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri