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A first appraisal of prognostic ocean DMS models and prospects for their use in climate models

Identifieur interne : 007361 ( Main/Exploration ); précédent : 007360; suivant : 007362

A first appraisal of prognostic ocean DMS models and prospects for their use in climate models

Auteurs : Yvonnick Le Clainche [Canada] ; Alain Vézina [Canada] ; Maurice Levasseur [Canada] ; Roger A. Cropp [Australie] ; Jim R. Gunson [Australie] ; Sergio M. Vallina [Espagne, États-Unis] ; Meike Vogt [Royaume-Uni, Suisse] ; Christiane Lancelot [Belgique] ; J. Icarus Allen [Royaume-Uni] ; Stephen D. Archer [Royaume-Uni] ; Laurent Bopp [France] ; Clara Deal [États-Unis] ; Scott Elliott [États-Unis] ; Meibing Jin [États-Unis] ; Gill Malin [Royaume-Uni] ; Véronique Schoemann [Belgique, Pays-Bas] ; Rafel Sim [Espagne] ; Katharina D. Six [Allemagne] ; Jacqueline Stefels [Pays-Bas]

Source :

RBID : ISTEX:794675CD1F19DAFA4A194FEBDC275B79D43E4E24

Descripteurs français

English descriptors

Abstract

Ocean dimethylsulfide (DMS) produced by marine biota is the largest natural source of atmospheric sulfur, playing a major role in the formation and evolution of aerosols, and consequently affecting climate. Several dynamic process‐based DMS models have been developed over the last decade, and work is progressing integrating them into climate models. Here we report on the first international comparison exercise of both 1D and 3D prognostic ocean DMS models. Four global 3D models were compared to global sea surface chlorophyll and DMS concentrations. Three local 1D models were compared to three different oceanic stations (BATS, DYFAMED, OSP) where available time series data offer seasonal coverage of chlorophyll and DMS variability. Two other 1D models were run at one site only. The major point of divergence among models, both within 3D and 1D models, relates to their ability to reproduce the summer peak in surface DMS concentrations usually observed at low to mid‐ latitudes. This significantly affects estimates of global DMS emissions predicted by the models. The inability of most models to capture this summer DMS maximum appears to be constrained by the basic structure of prognostic DMS models: dynamics of DMS and dimethylsulfoniopropionate (DMSP), the precursor of DMS, are slaved to the parent ecosystem models. Only the models which include environmental effects on DMS fluxes independently of ecological dynamics can reproduce this summer mismatch between chlorophyll and DMS. A major conclusion of this exercise is that prognostic DMS models need to give more weight to the direct impact of environmental forcing (e.g., irradiance) on DMS dynamics to decouple them from ecological processes.

Url:
DOI: 10.1029/2009GB003721


Affiliations:


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Le document en format XML

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<name sortKey="Sim, Rafel" sort="Sim, Rafel" uniqKey="Sim R" first="Rafel" last="Sim">Rafel Sim</name>
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<settlement type="city">Groningue (ville)</settlement>
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<term>Aerosols</term>
<term>Alaska fairbanks</term>
<term>Algal cells</term>
<term>Andreae</term>
<term>Argo data</term>
<term>Atmospheric environment research centre</term>
<term>Atmospheric research</term>
<term>Atmospheric sulfur</term>
<term>Basic structure</term>
<term>Belviso</term>
<term>Biogeochem</term>
<term>Biogeochemical</term>
<term>Biological oceanography</term>
<term>Biomass</term>
<term>Chlorophyll</term>
<term>Clainche</term>
<term>Climate</term>
<term>Climate change</term>
<term>Climate models</term>
<term>Climatology</term>
<term>Comparison exercise</term>
<term>Concentration uptake</term>
<term>Confidence level</term>
<term>Csiro marine</term>
<term>Cycle modeling</term>
<term>Cycling</term>
<term>Cycling terms</term>
<term>Data sets</term>
<term>Different oceanic stations</term>
<term>Dimethyl sulfide</term>
<term>Dimethylsulfide</term>
<term>Dmos</term>
<term>Dmsp</term>
<term>Dmspd</term>
<term>Dmspd concentration uptake</term>
<term>Dmspp</term>
<term>Dmspp production</term>
<term>Dyfamed</term>
<term>Dynamics</term>
<term>East anglia</term>
<term>Ecological</term>
<term>Ecological dynamics</term>
<term>Ecological processes</term>
<term>Ecosystem</term>
<term>Ecosystem model</term>
<term>Ecosystem models</term>
<term>Environmental factors</term>
<term>Environmental sciences</term>
<term>Explicit representation</term>
<term>First appraisal</term>
<term>Geochemical cycle</term>
<term>Geophys</term>
<term>Global</term>
<term>Global biogeochem</term>
<term>Global emissions</term>
<term>Global maps</term>
<term>Global models</term>
<term>Global scales</term>
<term>Global surface</term>
<term>Gotm</term>
<term>Gotm initialization</term>
<term>Griffith school</term>
<term>Griffith university</term>
<term>Hamocc</term>
<term>High latitudes</term>
<term>Hydrochemistry</term>
<term>Kiene</term>
<term>Light stress</term>
<term>Loss terms</term>
<term>Major point</term>
<term>Major role</term>
<term>Malin</term>
<term>Marine boundary layer</term>
<term>Marine environment</term>
<term>Mismatch</term>
<term>Model comparison</term>
<term>Model comparisons</term>
<term>Model development</term>
<term>Model simulations</term>
<term>Modeling</term>
<term>Models</term>
<term>Models table</term>
<term>Month resolution</term>
<term>Ncep</term>
<term>Ncep reanalysis</term>
<term>Nodem2</term>
<term>Nutrient</term>
<term>Nutrient limitation</term>
<term>Ocean regimes</term>
<term>Oceanic</term>
<term>Oceans canada</term>
<term>One dimensional model</term>
<term>Organic carbon</term>
<term>Other hand</term>
<term>Parent ecosystem models</term>
<term>Particulate dmsp</term>
<term>Phytoplankton</term>
<term>Pisces</term>
<term>Pisces hamocc planktom</term>
<term>Planck institute</term>
<term>Planktom</term>
<term>Plant ecophysiology</term>
<term>Plymouth marine laboratory</term>
<term>Positive correlations</term>
<term>Production source</term>
<term>Prognostic</term>
<term>Prognostic ocean</term>
<term>Rate uptake</term>
<term>Reanalysis</term>
<term>Reference climatologies</term>
<term>Royal netherlands institute</term>
<term>Salinity data</term>
<term>Seasonal correlations</term>
<term>Seasonal cycle</term>
<term>Seasonal variation</term>
<term>Seawater</term>
<term>Simulation</term>
<term>Solar radiation dose</term>
<term>Spatial resolution</term>
<term>Spearman correlations</term>
<term>Spearman rank correlations</term>
<term>Specific group</term>
<term>Stability analysis</term>
<term>State variables</term>
<term>Steady state</term>
<term>Stress function</term>
<term>Stress functions</term>
<term>Subarctic northeast</term>
<term>Sulfur</term>
<term>Sulfur cycling</term>
<term>Summer mismatch</term>
<term>Summer paradox</term>
<term>Summer peak</term>
<term>Surface chlorophyll</term>
<term>Surface ocean</term>
<term>Surface temperature</term>
<term>Surface water</term>
<term>Technical characteristics</term>
<term>Three dimensional model</term>
<term>Time series data</term>
<term>Upper ocean</term>
<term>Vallina</term>
<term>Various models</term>
<term>Vertical profiles</term>
<term>Wanninkhof</term>
<term>Western mediterranean</term>
<term>Wind speed</term>
<term>World ocean</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Aérosol</term>
<term>Chlorophylle</term>
<term>Climat</term>
<term>Cycle géochimique</term>
<term>DMS</term>
<term>Diméthylsulfure</term>
<term>Eau mer</term>
<term>Eau surface</term>
<term>Hydrochimie</term>
<term>Milieu marin</term>
<term>Modèle</term>
<term>Modèle 1 dimension</term>
<term>Modèle 3 dimensions</term>
<term>Océan mondial</term>
<term>Variation saisonnière</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en">
<term>Alaska fairbanks</term>
<term>Algal cells</term>
<term>Andreae</term>
<term>Argo data</term>
<term>Atmospheric environment research centre</term>
<term>Atmospheric research</term>
<term>Atmospheric sulfur</term>
<term>Basic structure</term>
<term>Belviso</term>
<term>Biogeochem</term>
<term>Biogeochemical</term>
<term>Biological oceanography</term>
<term>Biomass</term>
<term>Chlorophyll</term>
<term>Clainche</term>
<term>Climate change</term>
<term>Climate models</term>
<term>Climatology</term>
<term>Comparison exercise</term>
<term>Concentration uptake</term>
<term>Confidence level</term>
<term>Csiro marine</term>
<term>Cycle modeling</term>
<term>Cycling</term>
<term>Cycling terms</term>
<term>Data sets</term>
<term>Different oceanic stations</term>
<term>Dimethyl sulfide</term>
<term>Dimethylsulfide</term>
<term>Dmos</term>
<term>Dmsp</term>
<term>Dmspd</term>
<term>Dmspd concentration uptake</term>
<term>Dmspp</term>
<term>Dmspp production</term>
<term>Dyfamed</term>
<term>Dynamics</term>
<term>East anglia</term>
<term>Ecological</term>
<term>Ecological dynamics</term>
<term>Ecological processes</term>
<term>Ecosystem</term>
<term>Ecosystem model</term>
<term>Ecosystem models</term>
<term>Environmental factors</term>
<term>Environmental sciences</term>
<term>Explicit representation</term>
<term>First appraisal</term>
<term>Geophys</term>
<term>Global</term>
<term>Global biogeochem</term>
<term>Global emissions</term>
<term>Global maps</term>
<term>Global models</term>
<term>Global scales</term>
<term>Global surface</term>
<term>Gotm</term>
<term>Gotm initialization</term>
<term>Griffith school</term>
<term>Griffith university</term>
<term>Hamocc</term>
<term>High latitudes</term>
<term>Kiene</term>
<term>Light stress</term>
<term>Loss terms</term>
<term>Major point</term>
<term>Major role</term>
<term>Malin</term>
<term>Marine boundary layer</term>
<term>Mismatch</term>
<term>Model comparison</term>
<term>Model comparisons</term>
<term>Model development</term>
<term>Model simulations</term>
<term>Modeling</term>
<term>Models table</term>
<term>Month resolution</term>
<term>Ncep</term>
<term>Ncep reanalysis</term>
<term>Nodem2</term>
<term>Nutrient</term>
<term>Nutrient limitation</term>
<term>Ocean regimes</term>
<term>Oceanic</term>
<term>Oceans canada</term>
<term>Organic carbon</term>
<term>Other hand</term>
<term>Parent ecosystem models</term>
<term>Particulate dmsp</term>
<term>Phytoplankton</term>
<term>Pisces</term>
<term>Pisces hamocc planktom</term>
<term>Planck institute</term>
<term>Planktom</term>
<term>Plant ecophysiology</term>
<term>Plymouth marine laboratory</term>
<term>Positive correlations</term>
<term>Production source</term>
<term>Prognostic</term>
<term>Prognostic ocean</term>
<term>Rate uptake</term>
<term>Reanalysis</term>
<term>Reference climatologies</term>
<term>Royal netherlands institute</term>
<term>Salinity data</term>
<term>Seasonal correlations</term>
<term>Seasonal cycle</term>
<term>Simulation</term>
<term>Solar radiation dose</term>
<term>Spatial resolution</term>
<term>Spearman correlations</term>
<term>Spearman rank correlations</term>
<term>Specific group</term>
<term>Stability analysis</term>
<term>State variables</term>
<term>Steady state</term>
<term>Stress function</term>
<term>Stress functions</term>
<term>Subarctic northeast</term>
<term>Sulfur</term>
<term>Sulfur cycling</term>
<term>Summer mismatch</term>
<term>Summer paradox</term>
<term>Summer peak</term>
<term>Surface chlorophyll</term>
<term>Surface ocean</term>
<term>Surface temperature</term>
<term>Technical characteristics</term>
<term>Time series data</term>
<term>Upper ocean</term>
<term>Vallina</term>
<term>Various models</term>
<term>Vertical profiles</term>
<term>Wanninkhof</term>
<term>Western mediterranean</term>
<term>Wind speed</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Aérosol</term>
<term>Biomasse</term>
<term>Changement climatique</term>
<term>Climat</term>
<term>Climatologie</term>
<term>Milieu marin</term>
<term>écosystème</term>
<term>Simulation</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract">Ocean dimethylsulfide (DMS) produced by marine biota is the largest natural source of atmospheric sulfur, playing a major role in the formation and evolution of aerosols, and consequently affecting climate. Several dynamic process‐based DMS models have been developed over the last decade, and work is progressing integrating them into climate models. Here we report on the first international comparison exercise of both 1D and 3D prognostic ocean DMS models. Four global 3D models were compared to global sea surface chlorophyll and DMS concentrations. Three local 1D models were compared to three different oceanic stations (BATS, DYFAMED, OSP) where available time series data offer seasonal coverage of chlorophyll and DMS variability. Two other 1D models were run at one site only. The major point of divergence among models, both within 3D and 1D models, relates to their ability to reproduce the summer peak in surface DMS concentrations usually observed at low to mid‐ latitudes. This significantly affects estimates of global DMS emissions predicted by the models. The inability of most models to capture this summer DMS maximum appears to be constrained by the basic structure of prognostic DMS models: dynamics of DMS and dimethylsulfoniopropionate (DMSP), the precursor of DMS, are slaved to the parent ecosystem models. Only the models which include environmental effects on DMS fluxes independently of ecological dynamics can reproduce this summer mismatch between chlorophyll and DMS. A major conclusion of this exercise is that prognostic DMS models need to give more weight to the direct impact of environmental forcing (e.g., irradiance) on DMS dynamics to decouple them from ecological processes.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Allemagne</li>
<li>Australie</li>
<li>Belgique</li>
<li>Canada</li>
<li>Espagne</li>
<li>France</li>
<li>Pays-Bas</li>
<li>Royaume-Uni</li>
<li>Suisse</li>
<li>États-Unis</li>
</country>
<region>
<li>Catalogne</li>
<li>Groningue (province)</li>
<li>Hambourg</li>
<li>Massachusetts</li>
<li>Région de Bruxelles-Capitale</li>
</region>
<settlement>
<li>Barcelone</li>
<li>Bruxelles</li>
<li>Groningue (ville)</li>
<li>Hambourg</li>
</settlement>
<orgName>
<li>Université de Groningue</li>
<li>Université libre de Bruxelles</li>
</orgName>
</list>
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<name sortKey="Le Clainche, Yvonnick" sort="Le Clainche, Yvonnick" uniqKey="Le Clainche Y" first="Yvonnick" last="Le Clainche">Yvonnick Le Clainche</name>
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<name sortKey="Le Clainche, Yvonnick" sort="Le Clainche, Yvonnick" uniqKey="Le Clainche Y" first="Yvonnick" last="Le Clainche">Yvonnick Le Clainche</name>
<name sortKey="Le Clainche, Yvonnick" sort="Le Clainche, Yvonnick" uniqKey="Le Clainche Y" first="Yvonnick" last="Le Clainche">Yvonnick Le Clainche</name>
<name sortKey="Le Clainche, Yvonnick" sort="Le Clainche, Yvonnick" uniqKey="Le Clainche Y" first="Yvonnick" last="Le Clainche">Yvonnick Le Clainche</name>
<name sortKey="Levasseur, Maurice" sort="Levasseur, Maurice" uniqKey="Levasseur M" first="Maurice" last="Levasseur">Maurice Levasseur</name>
<name sortKey="Vezina, Alain" sort="Vezina, Alain" uniqKey="Vezina A" first="Alain" last="Vézina">Alain Vézina</name>
</country>
<country name="Australie">
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<name sortKey="Cropp, Roger A" sort="Cropp, Roger A" uniqKey="Cropp R" first="Roger A." last="Cropp">Roger A. Cropp</name>
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<name sortKey="Gunson, Jim R" sort="Gunson, Jim R" uniqKey="Gunson J" first="Jim R." last="Gunson">Jim R. Gunson</name>
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<country name="Espagne">
<region name="Catalogne">
<name sortKey="Vallina, Sergio M" sort="Vallina, Sergio M" uniqKey="Vallina S" first="Sergio M." last="Vallina">Sergio M. Vallina</name>
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<name sortKey="Sim, Rafel" sort="Sim, Rafel" uniqKey="Sim R" first="Rafel" last="Sim">Rafel Sim</name>
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<region name="Massachusetts">
<name sortKey="Vallina, Sergio M" sort="Vallina, Sergio M" uniqKey="Vallina S" first="Sergio M." last="Vallina">Sergio M. Vallina</name>
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<name sortKey="Deal, Clara" sort="Deal, Clara" uniqKey="Deal C" first="Clara" last="Deal">Clara Deal</name>
<name sortKey="Elliott, Scott" sort="Elliott, Scott" uniqKey="Elliott S" first="Scott" last="Elliott">Scott Elliott</name>
<name sortKey="Jin, Meibing" sort="Jin, Meibing" uniqKey="Jin M" first="Meibing" last="Jin">Meibing Jin</name>
</country>
<country name="Royaume-Uni">
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<name sortKey="Vogt, Meike" sort="Vogt, Meike" uniqKey="Vogt M" first="Meike" last="Vogt">Meike Vogt</name>
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<name sortKey="Allen, J Icarus" sort="Allen, J Icarus" uniqKey="Allen J" first="J. Icarus" last="Allen">J. Icarus Allen</name>
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<name sortKey="Malin, Gill" sort="Malin, Gill" uniqKey="Malin G" first="Gill" last="Malin">Gill Malin</name>
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<name sortKey="Vogt, Meike" sort="Vogt, Meike" uniqKey="Vogt M" first="Meike" last="Vogt">Meike Vogt</name>
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<region name="Région de Bruxelles-Capitale">
<name sortKey="Lancelot, Christiane" sort="Lancelot, Christiane" uniqKey="Lancelot C" first="Christiane" last="Lancelot">Christiane Lancelot</name>
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<name sortKey="Schoemann, Veronique" sort="Schoemann, Veronique" uniqKey="Schoemann V" first="Véronique" last="Schoemann">Véronique Schoemann</name>
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<country name="France">
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<name sortKey="Bopp, Laurent" sort="Bopp, Laurent" uniqKey="Bopp L" first="Laurent" last="Bopp">Laurent Bopp</name>
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<name sortKey="Stefels, Jacqueline" sort="Stefels, Jacqueline" uniqKey="Stefels J" first="Jacqueline" last="Stefels">Jacqueline Stefels</name>
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<name sortKey="Six, Katharina D" sort="Six, Katharina D" uniqKey="Six K" first="Katharina D." last="Six">Katharina D. Six</name>
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</record>

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