A global model for the uptake of atmospheric hydrogen by soils
Identifieur interne : 001412 ( PascalFrancis/Checkpoint ); précédent : 001411; suivant : 001413A global model for the uptake of atmospheric hydrogen by soils
Auteurs : C. Morfopoulos [Royaume-Uni] ; P. N. Foster [Royaume-Uni] ; P. Friedlingstein [Royaume-Uni] ; P. Bousquet [France] ; I. C. Prentice [Royaume-Uni, Australie]Source :
- Global biogeochemical cycles [ 0886-6236 ] ; 2012.
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- Pascal (Inist)
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- topic : Hydrogène, Consommation.
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Abstract
[1] A simple process-based model for the consumption of atmospheric hydrogen (H2) has been developed. The model includes a description of diffusion and biological processes which together control H2 flux into the soil. The model was incorporated into the LPJ-WHyMe Dynamic Global Vegetation Model, and used to simulate H2 fluxes over the 1988-2006 period. The model results have been confronted with field and laboratory measurements. The model reproduces observed seasonal cycles of H2 uptake at different sites and shows a realistic sensitivity to changes in soil temperature and soil water content in comparisons with field and laboratory measurements. A recent study, based on 3D atmospheric model inversion, found an increase of the global H2 sink from soils, with a trend of -0.77 Tg a-2 for the 1992-2004 period (fluxes are negative as soils act as a sink for atmospheric H2). For the same period, however, our process-based model calculates a trend of only -0.04 Tg a-2. Even when forced with drastic changes in soil water content, soil temperature and snow cover depth, our model is unable to reproduce the trend found in the inversion-based study, questioning the realism of such a large trend.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">A global model for the uptake of atmospheric hydrogen by soils</title><author><name sortKey="Morfopoulos, C" sort="Morfopoulos, C" uniqKey="Morfopoulos C" first="C." last="Morfopoulos">C. Morfopoulos</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Division of Biology, Imperial College</s1><s2>Ascot</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Ascot</wicri:noRegion></affiliation></author><author><name sortKey="Foster, P N" sort="Foster, P N" uniqKey="Foster P" first="P. N." last="Foster">P. N. Foster</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Earth Sciences, University of Bristol</s1><s2>Bristol</s2><s3>GBR</s3><sZ>2 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Bristol</wicri:noRegion></affiliation></author><author><name sortKey="Friedlingstein, P" sort="Friedlingstein, P" uniqKey="Friedlingstein P" first="P." last="Friedlingstein">P. Friedlingstein</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>College of Engineering, Mathematics and Physical Sciences, University of Exeter</s1><s2>Exeter</s2><s3>GBR</s3><sZ>3 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Exeter</wicri:noRegion></affiliation></author><author><name sortKey="Bousquet, P" sort="Bousquet, P" uniqKey="Bousquet P" first="P." last="Bousquet">P. Bousquet</name><affiliation wicri:level="3"><inist:fA14 i1="04"><s1>Laboratoire des Sciences du Climat et de l'Environnement, CEA</s1><s2>Gif-sur-Yvette</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Gif-sur-Yvette</settlement></placeName></affiliation></author><author><name sortKey="Prentice, I C" sort="Prentice, I C" uniqKey="Prentice I" first="I. C." last="Prentice">I. C. Prentice</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Division of Biology, Imperial College</s1><s2>Ascot</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Ascot</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Department of Biological Sciences, Macquarie University, North Ryde</s1><s2>New South Wales</s2><s3>AUS</s3><sZ>5 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>New South Wales</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0426403</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0426403 INIST</idno><idno type="RBID">Pascal:12-0426403</idno><idno type="wicri:Area/PascalFrancis/Corpus">000F02</idno><idno type="wicri:Area/PascalFrancis/Curation">005019</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">001412</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">001412</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">A global model for the uptake of atmospheric hydrogen by soils</title><author><name sortKey="Morfopoulos, C" sort="Morfopoulos, C" uniqKey="Morfopoulos C" first="C." last="Morfopoulos">C. Morfopoulos</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Division of Biology, Imperial College</s1><s2>Ascot</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Ascot</wicri:noRegion></affiliation></author><author><name sortKey="Foster, P N" sort="Foster, P N" uniqKey="Foster P" first="P. N." last="Foster">P. N. Foster</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Earth Sciences, University of Bristol</s1><s2>Bristol</s2><s3>GBR</s3><sZ>2 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Bristol</wicri:noRegion></affiliation></author><author><name sortKey="Friedlingstein, P" sort="Friedlingstein, P" uniqKey="Friedlingstein P" first="P." last="Friedlingstein">P. Friedlingstein</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>College of Engineering, Mathematics and Physical Sciences, University of Exeter</s1><s2>Exeter</s2><s3>GBR</s3><sZ>3 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Exeter</wicri:noRegion></affiliation></author><author><name sortKey="Bousquet, P" sort="Bousquet, P" uniqKey="Bousquet P" first="P." last="Bousquet">P. Bousquet</name><affiliation wicri:level="3"><inist:fA14 i1="04"><s1>Laboratoire des Sciences du Climat et de l'Environnement, CEA</s1><s2>Gif-sur-Yvette</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Gif-sur-Yvette</settlement></placeName></affiliation></author><author><name sortKey="Prentice, I C" sort="Prentice, I C" uniqKey="Prentice I" first="I. C." last="Prentice">I. C. Prentice</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Division of Biology, Imperial College</s1><s2>Ascot</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Royaume-Uni</country><wicri:noRegion>Ascot</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Department of Biological Sciences, Macquarie University, North Ryde</s1><s2>New South Wales</s2><s3>AUS</s3><sZ>5 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>New South Wales</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Global biogeochemical cycles</title><title level="j" type="abbreviated">Glob. biogeochem. cycles</title><idno type="ISSN">0886-6236</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Global biogeochemical cycles</title><title level="j" type="abbreviated">Glob. biogeochem. cycles</title><idno type="ISSN">0886-6236</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Laboratory study</term><term>Snow cover</term><term>consumption</term><term>cycles</term><term>depth</term><term>description</term><term>diffusion</term><term>dynamics</term><term>global</term><term>hydrogen</term><term>inverse problem</term><term>models</term><term>soils</term><term>temperature</term><term>vegetation</term><term>water content</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Monde</term><term>Modèle</term><term>Hydrogène</term><term>Sol</term><term>Consommation</term><term>Description</term><term>Diffusion</term><term>Dynamique</term><term>Végétation</term><term>Etude en laboratoire</term><term>Cycle</term><term>Température</term><term>Teneur eau</term><term>Problème inverse</term><term>Couverture neige</term><term>Profondeur</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Hydrogène</term><term>Consommation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">[1] A simple process-based model for the consumption of atmospheric hydrogen (H<sub>2</sub>) has been developed. The model includes a description of diffusion and biological processes which together control H<sub>2</sub> flux into the soil. The model was incorporated into the LPJ-WHyMe Dynamic Global Vegetation Model, and used to simulate H<sub>2</sub> fluxes over the 1988-2006 period. The model results have been confronted with field and laboratory measurements. The model reproduces observed seasonal cycles of H<sub>2</sub> uptake at different sites and shows a realistic sensitivity to changes in soil temperature and soil water content in comparisons with field and laboratory measurements. A recent study, based on 3D atmospheric model inversion, found an increase of the global H<sub>2</sub> sink from soils, with a trend of -0.77 Tg a<sup>-2 </sup>for the 1992-2004 period (fluxes are negative as soils act as a sink for atmospheric H<sub>2</sub>). For the same period, however, our process-based model calculates a trend of only -0.04 Tg a<sup>-2</sup>. Even when forced with drastic changes in soil water content, soil temperature and snow cover depth, our model is unable to reproduce the trend found in the inversion-based study, questioning the realism of such a large trend.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0886-6236</s0></fA01><fA02 i1="01"><s0>GBCYEP</s0></fA02><fA03 i2="1"><s0>Glob. biogeochem. cycles</s0></fA03><fA05><s2>26</s2></fA05><fA06><s2>3</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>A global model for the uptake of atmospheric hydrogen by soils</s1></fA08><fA11 i1="01" i2="1"><s1>MORFOPOULOS (C.)</s1></fA11><fA11 i1="02" i2="1"><s1>FOSTER (P. N.)</s1></fA11><fA11 i1="03" i2="1"><s1>FRIEDLINGSTEIN (P.)</s1></fA11><fA11 i1="04" i2="1"><s1>BOUSQUET (P.)</s1></fA11><fA11 i1="05" i2="1"><s1>PRENTICE (I. C.)</s1></fA11><fA14 i1="01"><s1>Division of Biology, Imperial College</s1><s2>Ascot</s2><s3>GBR</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Earth Sciences, University of Bristol</s1><s2>Bristol</s2><s3>GBR</s3><sZ>2 aut.</sZ></fA14><fA14 i1="03"><s1>College of Engineering, Mathematics and Physical Sciences, University of Exeter</s1><s2>Exeter</s2><s3>GBR</s3><sZ>3 aut.</sZ></fA14><fA14 i1="04"><s1>Laboratoire des Sciences du Climat et de l'Environnement, CEA</s1><s2>Gif-sur-Yvette</s2><s3>FRA</s3><sZ>4 aut.</sZ></fA14><fA14 i1="05"><s1>Department of Biological Sciences, Macquarie University, North Ryde</s1><s2>New South Wales</s2><s3>AUS</s3><sZ>5 aut.</sZ></fA14><fA20><s2>GB3013.1-GB3013.13</s2></fA20><fA21><s1>2012</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>21109</s2><s5>354000509584540130</s5></fA43><fA44><s0>0000</s0><s1>© 2012 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>3/4 p.</s0></fA45><fA47 i1="01" i2="1"><s0>12-0426403</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Global biogeochemical cycles</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>[1] A simple process-based model for the consumption of atmospheric hydrogen (H<sub>2</sub>) has been developed. The model includes a description of diffusion and biological processes which together control H<sub>2</sub> flux into the soil. The model was incorporated into the LPJ-WHyMe Dynamic Global Vegetation Model, and used to simulate H<sub>2</sub> fluxes over the 1988-2006 period. The model results have been confronted with field and laboratory measurements. The model reproduces observed seasonal cycles of H<sub>2</sub> uptake at different sites and shows a realistic sensitivity to changes in soil temperature and soil water content in comparisons with field and laboratory measurements. A recent study, based on 3D atmospheric model inversion, found an increase of the global H<sub>2</sub> sink from soils, with a trend of -0.77 Tg a<sup>-2 </sup>for the 1992-2004 period (fluxes are negative as soils act as a sink for atmospheric H<sub>2</sub>). For the same period, however, our process-based model calculates a trend of only -0.04 Tg a<sup>-2</sup>. Even when forced with drastic changes in soil water content, soil temperature and snow cover depth, our model is unable to reproduce the trend found in the inversion-based study, questioning the realism of such a large trend.</s0></fC01><fC02 i1="01" i2="X"><s0>002A14B04A</s0></fC02><fC02 i1="02" i2="2"><s0>001E01B</s0></fC02><fC02 i1="03" i2="2"><s0>220B</s0></fC02><fC03 i1="01" i2="2" l="FRE"><s0>Monde</s0><s5>01</s5></fC03><fC03 i1="01" i2="2" l="ENG"><s0>global</s0><s5>01</s5></fC03><fC03 i1="01" i2="2" l="SPA"><s0>Mundo</s0><s5>01</s5></fC03><fC03 i1="02" i2="2" l="FRE"><s0>Modèle</s0><s5>02</s5></fC03><fC03 i1="02" i2="2" l="ENG"><s0>models</s0><s5>02</s5></fC03><fC03 i1="02" i2="2" l="SPA"><s0>Modelo</s0><s5>02</s5></fC03><fC03 i1="03" i2="2" l="FRE"><s0>Hydrogène</s0><s5>03</s5></fC03><fC03 i1="03" i2="2" l="ENG"><s0>hydrogen</s0><s5>03</s5></fC03><fC03 i1="03" i2="2" l="SPA"><s0>Hidrógeno</s0><s5>03</s5></fC03><fC03 i1="04" i2="2" l="FRE"><s0>Sol</s0><s2>NT</s2><s5>04</s5></fC03><fC03 i1="04" i2="2" l="ENG"><s0>soils</s0><s2>NT</s2><s5>04</s5></fC03><fC03 i1="04" i2="2" l="SPA"><s0>Suelo</s0><s2>NT</s2><s5>04</s5></fC03><fC03 i1="05" i2="2" l="FRE"><s0>Consommation</s0><s5>05</s5></fC03><fC03 i1="05" i2="2" l="ENG"><s0>consumption</s0><s5>05</s5></fC03><fC03 i1="05" i2="2" l="SPA"><s0>Consumo</s0><s5>05</s5></fC03><fC03 i1="06" i2="2" l="FRE"><s0>Description</s0><s5>06</s5></fC03><fC03 i1="06" i2="2" l="ENG"><s0>description</s0><s5>06</s5></fC03><fC03 i1="07" i2="2" l="FRE"><s0>Diffusion</s0><s5>07</s5></fC03><fC03 i1="07" i2="2" l="ENG"><s0>diffusion</s0><s5>07</s5></fC03><fC03 i1="07" i2="2" l="SPA"><s0>Difusión</s0><s5>07</s5></fC03><fC03 i1="08" i2="2" l="FRE"><s0>Dynamique</s0><s5>08</s5></fC03><fC03 i1="08" i2="2" l="ENG"><s0>dynamics</s0><s5>08</s5></fC03><fC03 i1="08" i2="2" l="SPA"><s0>Dinámica</s0><s5>08</s5></fC03><fC03 i1="09" i2="2" l="FRE"><s0>Végétation</s0><s5>09</s5></fC03><fC03 i1="09" i2="2" l="ENG"><s0>vegetation</s0><s5>09</s5></fC03><fC03 i1="09" i2="2" l="SPA"><s0>Vegetación</s0><s5>09</s5></fC03><fC03 i1="10" i2="X" l="FRE"><s0>Etude en laboratoire</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="ENG"><s0>Laboratory study</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="SPA"><s0>Estudio en laboratorio</s0><s5>10</s5></fC03><fC03 i1="11" i2="2" l="FRE"><s0>Cycle</s0><s5>11</s5></fC03><fC03 i1="11" i2="2" l="ENG"><s0>cycles</s0><s5>11</s5></fC03><fC03 i1="12" i2="2" l="FRE"><s0>Température</s0><s5>12</s5></fC03><fC03 i1="12" i2="2" l="ENG"><s0>temperature</s0><s5>12</s5></fC03><fC03 i1="12" i2="2" l="SPA"><s0>Temperatura</s0><s5>12</s5></fC03><fC03 i1="13" i2="2" l="FRE"><s0>Teneur eau</s0><s5>13</s5></fC03><fC03 i1="13" i2="2" l="ENG"><s0>water content</s0><s5>13</s5></fC03><fC03 i1="13" i2="2" l="SPA"><s0>Contenido en agua</s0><s5>13</s5></fC03><fC03 i1="14" i2="2" l="FRE"><s0>Problème inverse</s0><s5>14</s5></fC03><fC03 i1="14" i2="2" l="ENG"><s0>inverse problem</s0><s5>14</s5></fC03><fC03 i1="14" i2="2" l="SPA"><s0>Problema inverso</s0><s5>14</s5></fC03><fC03 i1="15" i2="X" l="FRE"><s0>Couverture neige</s0><s5>15</s5></fC03><fC03 i1="15" i2="X" l="ENG"><s0>Snow cover</s0><s5>15</s5></fC03><fC03 i1="15" i2="X" l="SPA"><s0>Cubierta nieve</s0><s5>15</s5></fC03><fC03 i1="16" i2="2" l="FRE"><s0>Profondeur</s0><s5>16</s5></fC03><fC03 i1="16" i2="2" l="ENG"><s0>depth</s0><s5>16</s5></fC03><fC03 i1="16" i2="2" l="SPA"><s0>Profundidad</s0><s5>16</s5></fC03><fN21><s1>331</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard></inist><affiliations><list><country><li>Australie</li><li>France</li><li>Royaume-Uni</li></country><region><li>Île-de-France</li></region><settlement><li>Gif-sur-Yvette</li></settlement></list><tree><country name="Royaume-Uni"><noRegion><name sortKey="Morfopoulos, C" sort="Morfopoulos, C" uniqKey="Morfopoulos C" first="C." last="Morfopoulos">C. Morfopoulos</name></noRegion><name sortKey="Foster, P N" sort="Foster, P N" uniqKey="Foster P" first="P. N." last="Foster">P. N. Foster</name><name sortKey="Friedlingstein, P" sort="Friedlingstein, P" uniqKey="Friedlingstein P" first="P." last="Friedlingstein">P. Friedlingstein</name><name sortKey="Prentice, I C" sort="Prentice, I C" uniqKey="Prentice I" first="I. C." last="Prentice">I. C. Prentice</name></country><country name="France"><region name="Île-de-France"><name sortKey="Bousquet, P" sort="Bousquet, P" uniqKey="Bousquet P" first="P." last="Bousquet">P. Bousquet</name></region></country><country name="Australie"><noRegion><name sortKey="Prentice, I C" sort="Prentice, I C" uniqKey="Prentice I" first="I. C." last="Prentice">I. C. Prentice</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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