Reassessing the variability in atmospheric H2 using the two‐way nested TM5 model
Identifieur interne : 004974 ( Main/Exploration ); précédent : 004973; suivant : 004975Reassessing the variability in atmospheric H2 using the two‐way nested TM5 model
Auteurs : G. Pieterse [Pays-Bas] ; M. C. Krol [Pays-Bas] ; A. M. Batenburg [Pays-Bas] ; C. A. M. Brenninkmeijer [Allemagne] ; M. E. Popa [Pays-Bas] ; S. O'Doherty [Royaume-Uni] ; A. Grant [Royaume-Uni] ; L. P. Steele [Australie] ; P. B. Krummel [Australie] ; R. L. Langenfelds [Australie] ; H. J. Wang [États-Unis] ; A. T. Vermeulen [Pays-Bas] ; M. Schmidt [France] ; C. Yver [France] ; A. Jordan [Allemagne] ; A. Engel [Allemagne] ; R. E. Fisher [Royaume-Uni] ; D. Lowry [Royaume-Uni] ; E. G. Nisbet [Royaume-Uni] ; S. Reimann [Suisse] ; M. K. Vollmer [Suisse] ; M. Steinbacher [Suisse] ; S. Hammer [Allemagne] ; G. Forster [Royaume-Uni] ; W. T. Sturges [Royaume-Uni] ; T. Röckmann [Pays-Bas]Source :
- Journal of Geophysical Research: Atmospheres [ 2169-897X ] ; 2013-05-16.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
- Adverse effects, Agricultural regions, Amsterdam island, Antarctic regions, Atmos, Atmospheric, Atmospheric burden, Atmospheric chemistry, Atmospheric fallout, Atmospheric methane emissions, Atmospheric observations, Atmospheric research, Atmospheric research utrecht, Atmospheric transport, Available measurement data, Available measurements, Background stations, Batenburg, Better agreement, Biomass, Blue lines, Bousquet, Budget term, Calibration scale, Canopy, Canopy height, Canopy(vegetation), Cape verde, Carbon monoxide, Caribic measurements, Chem, Chemical species, Chemistry scheme, Civil aircraft, Climate change, Climate research, Continuous measurements, Csiro, Data points, Data show, Deposition, Deposition parameterization, Deposition parametrization, Deposition resistance, Deposition scheme, Deposition velocities, Deuterium, Deuterium content, Ecmwf data, Ecosystem, Ehhalt, Empirical factor, Eurohydros, Eurohydros observations, Eurohydros project, Eurohydros stations, European centre, European commission, Extreme deuterium enrichment, Fossil, Fossil fuel, Fossil fuel emissions, Fossil fuels, Free tropospheric, Friction velocity, Fuel cell technology, Geographical distribution, Geophys, Global, Global biogeochem, Global budget, Global burden, Global distribution, Good agreement, Grid cell, Hydrogen cycle, Hydrogen economy, Important role, Inverse modelling, Isotope, Isotope chemistry scheme, Isotope signatures, Isotopic, Isotopic composition, Isotopic compositions, Krol, Large deposition velocities, Latitudinal, Latitudinal gradient, Latitudinal gradient section, Latitudinal gradients, Latitudinal variability, Leaf mesophyll tissue, Lifetime, Lower stratosphere, Mace head, Maize crop, Marine sector, Measurement data, Meteorological data, Model domain, Model performance, Model results, Model scenarios, Model setup, Model subdomain, Model value, Model values, Molecular hydrogen, Nested model, Novelli, Operational data, Other species, Other wind directions, Overall performance, Overall value, Parametrization, Photochemical, Photochemical oxidation, Photochemical production, Photochemical reaction, Photochemical removal, Photochemical source, Photochemical source magnitude, Photochemical source magnitudes, Phys, Pieterse, Planetary scale, Previous sections, Previous study, Quay, Rahn, Rainforest, Realistic values, Reanalysis, Reference scenario, Regular investigation, Rhee, Road transportation, Rohrer, Same time, Sampling data, Savannah ecosystem types, Savannah ecosystems, Scenario, Seasonal cycle, Seasonal variability, Seasonal variation, Similar reasons, Simulation, Snow surfaces, Soil uptake, Southern Hemisphere, Spatial variability, Standard deviation, Stratosphere, Stratospheric, Stratospheric boundary condition, Stratospheric correction, Stratospheric parametrization, Surface emissions, Synthesis inversion, Technical report, Term accounts, Threshold pressure level, Trace gases, Troposphere, Tropospheric, Tropospheric burden, Tropospheric chemistry, Tropospheric composition, Tropospheric lifetime, Upper quartile, Upper quartiles, Urban area, Variability, Variational data assimilation, Vegetation leaf surfaces, Vegetation surfaces, Vertical transport, Water surfaces, Weather forecasts, Wetted surfaces, Wind directions, Wind sector, Xation, Xation processes, Xiao, deuterium, mass balance, oxidation, parametrization, stable isotopes, time scales, troposphere.
- Teeft :
- Adverse effects, Agricultural regions, Amsterdam island, Antarctic regions, Atmos, Atmospheric, Atmospheric burden, Atmospheric methane emissions, Atmospheric observations, Atmospheric research, Atmospheric research utrecht, Atmospheric transport, Available measurement data, Available measurements, Background stations, Batenburg, Better agreement, Biomass, Blue lines, Bousquet, Budget term, Calibration scale, Canopy, Canopy height, Cape verde, Carbon monoxide, Caribic measurements, Chem, Chemical species, Chemistry scheme, Civil aircraft, Climate change, Climate research, Continuous measurements, Csiro, Data points, Data show, Deposition, Deposition parameterization, Deposition parametrization, Deposition resistance, Deposition scheme, Deposition velocities, Deuterium, Deuterium content, Ecmwf data, Ecosystem, Ehhalt, Empirical factor, Eurohydros, Eurohydros observations, Eurohydros project, Eurohydros stations, European centre, European commission, Extreme deuterium enrichment, Fossil, Fossil fuel, Fossil fuel emissions, Fossil fuels, Free tropospheric, Friction velocity, Fuel cell technology, Geographical distribution, Geophys, Global, Global biogeochem, Global budget, Global burden, Global distribution, Good agreement, Grid cell, Hydrogen cycle, Hydrogen economy, Important role, Inverse modelling, Isotope, Isotope chemistry scheme, Isotope signatures, Isotopic, Isotopic composition, Isotopic compositions, Krol, Large deposition velocities, Latitudinal, Latitudinal gradient, Latitudinal gradient section, Latitudinal gradients, Latitudinal variability, Leaf mesophyll tissue, Lower stratosphere, Mace head, Maize crop, Marine sector, Measurement data, Meteorological data, Model domain, Model performance, Model results, Model scenarios, Model setup, Model subdomain, Model value, Model values, Molecular hydrogen, Novelli, Operational data, Other species, Other wind directions, Overall performance, Overall value, Parametrization, Photochemical, Photochemical oxidation, Photochemical production, Photochemical removal, Photochemical source, Photochemical source magnitude, Photochemical source magnitudes, Phys, Pieterse, Previous sections, Previous study, Quay, Rahn, Rainforest, Realistic values, Reference scenario, Regular investigation, Rhee, Road transportation, Rohrer, Same time, Sampling data, Savannah ecosystem types, Savannah ecosystems, Scenario, Seasonal cycle, Seasonal variability, Seasonal variation, Similar reasons, Simulation, Snow surfaces, Soil uptake, Spatial variability, Standard deviation, Stratosphere, Stratospheric, Stratospheric boundary condition, Stratospheric correction, Stratospheric parametrization, Surface emissions, Synthesis inversion, Technical report, Term accounts, Threshold pressure level, Trace gases, Troposphere, Tropospheric, Tropospheric burden, Tropospheric chemistry, Tropospheric composition, Tropospheric lifetime, Upper quartile, Upper quartiles, Urban area, Variability, Variational data assimilation, Vegetation leaf surfaces, Vegetation surfaces, Vertical transport, Water surfaces, Weather forecasts, Wetted surfaces, Wind directions, Wind sector, Xation, Xation processes, Xiao.
Abstract
This work reassesses the global atmospheric budget of H2 with the TM5 model. The recent adjustment of the calibration scale for H2 translates into a change in the tropospheric burden. Furthermore, the ECMWF Reanalysis‐Interim (ERA‐Interim) data from the European Centre for Medium‐Range Weather Forecasts (ECMWF) used in this study show slower vertical transport than the operational data used before. Consequently, more H2 is removed by deposition. The deposition parametrization is updated because significant deposition fluxes for snow, water, and vegetation surfaces were calculated in our previous study. Timescales of 1–2 h are asserted for the transport of H2 through the canopies of densely vegetated regions. The global scale variability of H2 and δ[DH2] is well represented by the updated model. H2 is slightly overestimated in the Southern Hemisphere because too little H2 is removed by dry deposition to rainforests and savannahs. The variability in H2 over Europe is further investigated using a high‐resolution model subdomain. It is shown that discrepancies between the model and the observations are mainly caused by the finite model resolution. The tropospheric burden is estimated at 165±8 Tg H2. The removal rates of H2 by deposition and photochemical oxidation are estimated at 53±4 and 23±2 Tg H2/yr, resulting in a tropospheric lifetime of 2.2±0.2 year.
Url:
DOI: 10.1002/jgrd.50204
Affiliations:
- Allemagne, Australie, France, Pays-Bas, Royaume-Uni, Suisse, États-Unis
- Angleterre, Bade-Wurtemberg, District de Darmstadt, District de Karlsruhe, Grand Londres, Hesse (Land), Rhénanie-Palatinat, Utrecht (province)
- Francfort-sur-le-Main, Heidelberg, Londres, Mayence, Utrecht
- Université Johann Wolfgang Goethe de Francfort-sur-le-Main, Université de Londres
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O'Doherty</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>School of Chemistry, University of Bristol, Bristol</wicri:regionArea><wicri:noRegion>Bristol</wicri:noRegion></affiliation></author><author><name sortKey="Grant, A" sort="Grant, A" uniqKey="Grant A" first="A." last="Grant">A. Grant</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>School of Chemistry, University of Bristol, Bristol</wicri:regionArea><wicri:noRegion>Bristol</wicri:noRegion></affiliation></author><author><name sortKey="Steele, L P" sort="Steele, L P" uniqKey="Steele L" first="L. P." last="Steele">L. P. Steele</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Centre for Australian Weather and Climate Research, CSIRO Marine and Atmospheric Research, Victoria, Aspendale</wicri:regionArea><wicri:noRegion>Aspendale</wicri:noRegion></affiliation></author><author><name sortKey="Krummel, P B" sort="Krummel, P B" uniqKey="Krummel P" first="P. B." last="Krummel">P. B. Krummel</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Centre for Australian Weather and Climate Research, CSIRO Marine and Atmospheric Research, Victoria, Aspendale</wicri:regionArea><wicri:noRegion>Aspendale</wicri:noRegion></affiliation></author><author><name sortKey="Langenfelds, R L" sort="Langenfelds, R L" uniqKey="Langenfelds R" first="R. L." last="Langenfelds">R. L. Langenfelds</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Centre for Australian Weather and Climate Research, CSIRO Marine and Atmospheric Research, Victoria, Aspendale</wicri:regionArea><wicri:noRegion>Aspendale</wicri:noRegion></affiliation></author><author><name sortKey="Wang, H J" sort="Wang, H J" uniqKey="Wang H" first="H. J." last="Wang">H. J. Wang</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>School of Earth and Atmospheric Sciences, Georgia Institute of Technology, GA, Atlanta</wicri:regionArea><wicri:noRegion>Atlanta</wicri:noRegion></affiliation></author><author><name sortKey="Vermeulen, A T" sort="Vermeulen, A T" uniqKey="Vermeulen A" first="A. T." last="Vermeulen">A. T. Vermeulen</name><affiliation wicri:level="1"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Department of Air Quality and Climate Research at the Energy Research Centre of the Netherlands (ECN), Petten</wicri:regionArea><wicri:noRegion>Petten</wicri:noRegion></affiliation></author><author><name sortKey="Schmidt, M" sort="Schmidt, M" uniqKey="Schmidt M" first="M." last="Schmidt">M. Schmidt</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif‐sur‐Yvette</wicri:regionArea><wicri:noRegion>Gif‐sur‐Yvette</wicri:noRegion><wicri:noRegion>Gif‐sur‐Yvette</wicri:noRegion></affiliation></author><author><name sortKey="Yver, C" sort="Yver, C" uniqKey="Yver C" first="C." last="Yver">C. Yver</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif‐sur‐Yvette</wicri:regionArea><wicri:noRegion>Gif‐sur‐Yvette</wicri:noRegion><wicri:noRegion>Gif‐sur‐Yvette</wicri:noRegion></affiliation></author><author><name sortKey="Jordan, A" sort="Jordan, A" uniqKey="Jordan A" first="A." last="Jordan">A. Jordan</name><affiliation wicri:level="1"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max‐Planck Institut für Biogeochemie, Jena</wicri:regionArea><wicri:noRegion>Jena</wicri:noRegion><wicri:noRegion>Jena</wicri:noRegion></affiliation></author><author><name sortKey="Engel, A" sort="Engel, A" uniqKey="Engel A" first="A." last="Engel">A. Engel</name><affiliation wicri:level="4"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Meteorologie und Geophysik, Goethe‐Universität Frankfurt, Frankfurt</wicri:regionArea><placeName><region type="land" nuts="1">Hesse (Land)</region><region type="district" nuts="2">District de Darmstadt</region><settlement type="city">Francfort-sur-le-Main</settlement><settlement type="city">Francfort-sur-le-Main</settlement></placeName><orgName type="university">Université Johann Wolfgang Goethe de Francfort-sur-le-Main</orgName></affiliation></author><author><name sortKey="Fisher, R E" sort="Fisher, R E" uniqKey="Fisher R" first="R. E." last="Fisher">R. E. Fisher</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Earth Sciences, Royal Holloway, University of London, Egham</wicri:regionArea><orgName type="university">Université de Londres</orgName><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Lowry, D" sort="Lowry, D" uniqKey="Lowry D" first="D." last="Lowry">D. Lowry</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Earth Sciences, Royal Holloway, University of London, Egham</wicri:regionArea><orgName type="university">Université de Londres</orgName><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Nisbet, E G" sort="Nisbet, E G" uniqKey="Nisbet E" first="E. G." last="Nisbet">E. G. Nisbet</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Earth Sciences, Royal Holloway, University of London, Egham</wicri:regionArea><orgName type="university">Université de Londres</orgName><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Reimann, S" sort="Reimann, S" uniqKey="Reimann S" first="S." last="Reimann">S. Reimann</name><affiliation wicri:level="1"><country xml:lang="fr">Suisse</country><wicri:regionArea>Empa, Swiss Federal Institute for Materials Science and Technology, Laboratory for Air Pollution/Environmental Technology, Duebendorf</wicri:regionArea><wicri:noRegion>Duebendorf</wicri:noRegion></affiliation></author><author><name sortKey="Vollmer, M K" sort="Vollmer, M K" uniqKey="Vollmer M" first="M. K." last="Vollmer">M. K. Vollmer</name><affiliation wicri:level="1"><country xml:lang="fr">Suisse</country><wicri:regionArea>Empa, Swiss Federal Institute for Materials Science and Technology, Laboratory for Air Pollution/Environmental Technology, Duebendorf</wicri:regionArea><wicri:noRegion>Duebendorf</wicri:noRegion></affiliation></author><author><name sortKey="Steinbacher, M" sort="Steinbacher, M" uniqKey="Steinbacher M" first="M." last="Steinbacher">M. Steinbacher</name><affiliation wicri:level="1"><country xml:lang="fr">Suisse</country><wicri:regionArea>Empa, Swiss Federal Institute for Materials Science and Technology, Laboratory for Air Pollution/Environmental Technology, Duebendorf</wicri:regionArea><wicri:noRegion>Duebendorf</wicri:noRegion></affiliation></author><author><name sortKey="Hammer, S" sort="Hammer, S" uniqKey="Hammer S" first="S." last="Hammer">S. Hammer</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Umweltphysik, Heidelberg Universität, Heidelberg</wicri:regionArea><placeName><region type="land" nuts="1">Bade-Wurtemberg</region><region type="district" nuts="2">District de Karlsruhe</region><settlement type="city">Heidelberg</settlement></placeName></affiliation></author><author><name sortKey="Forster, G" sort="Forster, G" uniqKey="Forster G" first="G." last="Forster">G. Forster</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>School of Environmental Sciences, University of East Anglia, Norwich</wicri:regionArea><wicri:noRegion>Norwich</wicri:noRegion></affiliation></author><author><name sortKey="Sturges, W T" sort="Sturges, W T" uniqKey="Sturges W" first="W. T." last="Sturges">W. T. Sturges</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>School of Environmental Sciences, University of East Anglia, Norwich</wicri:regionArea><wicri:noRegion>Norwich</wicri:noRegion></affiliation></author><author><name sortKey="Rockmann, T" sort="Rockmann, T" uniqKey="Rockmann T" first="T." last="Röckmann">T. Röckmann</name><affiliation wicri:level="3"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht</wicri:regionArea><placeName><settlement type="city">Utrecht</settlement><region nuts="2" type="province">Utrecht (province)</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Geophysical Research: Atmospheres</title><title level="j" type="alt">JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES</title><idno type="ISSN">2169-897X</idno><idno type="eISSN">2169-8996</idno><imprint><biblScope unit="vol">118</biblScope><biblScope unit="issue">9</biblScope><biblScope unit="page" from="3764">3764</biblScope><biblScope unit="page" to="3780">3780</biblScope><biblScope unit="page-count">17</biblScope><date type="published" when="2013-05-16">2013-05-16</date></imprint><idno type="ISSN">2169-897X</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">2169-897X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adverse effects</term><term>Agricultural regions</term><term>Amsterdam island</term><term>Antarctic regions</term><term>Atmos</term><term>Atmospheric</term><term>Atmospheric burden</term><term>Atmospheric chemistry</term><term>Atmospheric fallout</term><term>Atmospheric methane emissions</term><term>Atmospheric observations</term><term>Atmospheric research</term><term>Atmospheric research utrecht</term><term>Atmospheric transport</term><term>Available measurement data</term><term>Available measurements</term><term>Background stations</term><term>Batenburg</term><term>Better agreement</term><term>Biomass</term><term>Blue lines</term><term>Bousquet</term><term>Budget term</term><term>Calibration scale</term><term>Canopy</term><term>Canopy height</term><term>Canopy(vegetation)</term><term>Cape verde</term><term>Carbon monoxide</term><term>Caribic measurements</term><term>Chem</term><term>Chemical species</term><term>Chemistry scheme</term><term>Civil aircraft</term><term>Climate change</term><term>Climate research</term><term>Continuous measurements</term><term>Csiro</term><term>Data points</term><term>Data show</term><term>Deposition</term><term>Deposition parameterization</term><term>Deposition parametrization</term><term>Deposition resistance</term><term>Deposition scheme</term><term>Deposition velocities</term><term>Deuterium</term><term>Deuterium content</term><term>Ecmwf data</term><term>Ecosystem</term><term>Ehhalt</term><term>Empirical factor</term><term>Eurohydros</term><term>Eurohydros observations</term><term>Eurohydros project</term><term>Eurohydros stations</term><term>European centre</term><term>European commission</term><term>Extreme deuterium enrichment</term><term>Fossil</term><term>Fossil fuel</term><term>Fossil fuel emissions</term><term>Fossil fuels</term><term>Free tropospheric</term><term>Friction velocity</term><term>Fuel cell technology</term><term>Geographical distribution</term><term>Geophys</term><term>Global</term><term>Global biogeochem</term><term>Global budget</term><term>Global burden</term><term>Global distribution</term><term>Good agreement</term><term>Grid cell</term><term>Hydrogen cycle</term><term>Hydrogen economy</term><term>Important role</term><term>Inverse modelling</term><term>Isotope</term><term>Isotope chemistry scheme</term><term>Isotope signatures</term><term>Isotopic</term><term>Isotopic composition</term><term>Isotopic compositions</term><term>Krol</term><term>Large deposition velocities</term><term>Latitudinal</term><term>Latitudinal gradient</term><term>Latitudinal gradient section</term><term>Latitudinal gradients</term><term>Latitudinal variability</term><term>Leaf mesophyll tissue</term><term>Lifetime</term><term>Lower stratosphere</term><term>Mace head</term><term>Maize crop</term><term>Marine sector</term><term>Measurement data</term><term>Meteorological data</term><term>Model domain</term><term>Model performance</term><term>Model results</term><term>Model scenarios</term><term>Model setup</term><term>Model subdomain</term><term>Model value</term><term>Model values</term><term>Molecular hydrogen</term><term>Nested model</term><term>Novelli</term><term>Operational data</term><term>Other species</term><term>Other wind directions</term><term>Overall performance</term><term>Overall value</term><term>Parametrization</term><term>Photochemical</term><term>Photochemical oxidation</term><term>Photochemical production</term><term>Photochemical reaction</term><term>Photochemical removal</term><term>Photochemical source</term><term>Photochemical source magnitude</term><term>Photochemical source magnitudes</term><term>Phys</term><term>Pieterse</term><term>Planetary scale</term><term>Previous sections</term><term>Previous study</term><term>Quay</term><term>Rahn</term><term>Rainforest</term><term>Realistic values</term><term>Reanalysis</term><term>Reference scenario</term><term>Regular investigation</term><term>Rhee</term><term>Road transportation</term><term>Rohrer</term><term>Same time</term><term>Sampling data</term><term>Savannah ecosystem types</term><term>Savannah ecosystems</term><term>Scenario</term><term>Seasonal cycle</term><term>Seasonal variability</term><term>Seasonal variation</term><term>Similar reasons</term><term>Simulation</term><term>Snow surfaces</term><term>Soil uptake</term><term>Southern Hemisphere</term><term>Spatial variability</term><term>Standard deviation</term><term>Stratosphere</term><term>Stratospheric</term><term>Stratospheric boundary condition</term><term>Stratospheric correction</term><term>Stratospheric parametrization</term><term>Surface emissions</term><term>Synthesis inversion</term><term>Technical report</term><term>Term accounts</term><term>Threshold pressure level</term><term>Trace gases</term><term>Troposphere</term><term>Tropospheric</term><term>Tropospheric burden</term><term>Tropospheric chemistry</term><term>Tropospheric composition</term><term>Tropospheric lifetime</term><term>Upper quartile</term><term>Upper quartiles</term><term>Urban area</term><term>Variability</term><term>Variational data assimilation</term><term>Vegetation leaf surfaces</term><term>Vegetation surfaces</term><term>Vertical transport</term><term>Water surfaces</term><term>Weather forecasts</term><term>Wetted surfaces</term><term>Wind directions</term><term>Wind sector</term><term>Xation</term><term>Xation processes</term><term>Xiao</term><term>deuterium</term><term>mass balance</term><term>oxidation</term><term>parametrization</term><term>stable isotopes</term><term>time scales</term><term>troposphere</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Bilan masse</term><term>Canopée</term><term>Chimie atmosphérique</term><term>Deutérium</term><term>Durée vie</term><term>Echelle planétaire</term><term>Echelle temps</term><term>Hémisphère Sud</term><term>Isotope stable</term><term>Modèle emboîté</term><term>Oxydation</term><term>Paramétrisation</term><term>Retombée atmosphérique</term><term>Réaction photochimique</term><term>Réanalyse</term><term>Troposphère</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Adverse effects</term><term>Agricultural regions</term><term>Amsterdam island</term><term>Antarctic regions</term><term>Atmos</term><term>Atmospheric</term><term>Atmospheric burden</term><term>Atmospheric methane emissions</term><term>Atmospheric observations</term><term>Atmospheric research</term><term>Atmospheric research utrecht</term><term>Atmospheric transport</term><term>Available measurement data</term><term>Available measurements</term><term>Background stations</term><term>Batenburg</term><term>Better agreement</term><term>Biomass</term><term>Blue lines</term><term>Bousquet</term><term>Budget term</term><term>Calibration scale</term><term>Canopy</term><term>Canopy height</term><term>Cape verde</term><term>Carbon monoxide</term><term>Caribic measurements</term><term>Chem</term><term>Chemical species</term><term>Chemistry scheme</term><term>Civil aircraft</term><term>Climate change</term><term>Climate research</term><term>Continuous measurements</term><term>Csiro</term><term>Data points</term><term>Data show</term><term>Deposition</term><term>Deposition parameterization</term><term>Deposition parametrization</term><term>Deposition resistance</term><term>Deposition scheme</term><term>Deposition velocities</term><term>Deuterium</term><term>Deuterium content</term><term>Ecmwf data</term><term>Ecosystem</term><term>Ehhalt</term><term>Empirical factor</term><term>Eurohydros</term><term>Eurohydros observations</term><term>Eurohydros project</term><term>Eurohydros stations</term><term>European centre</term><term>European commission</term><term>Extreme deuterium enrichment</term><term>Fossil</term><term>Fossil fuel</term><term>Fossil fuel emissions</term><term>Fossil fuels</term><term>Free tropospheric</term><term>Friction velocity</term><term>Fuel cell technology</term><term>Geographical distribution</term><term>Geophys</term><term>Global</term><term>Global biogeochem</term><term>Global budget</term><term>Global burden</term><term>Global distribution</term><term>Good agreement</term><term>Grid cell</term><term>Hydrogen cycle</term><term>Hydrogen economy</term><term>Important role</term><term>Inverse modelling</term><term>Isotope</term><term>Isotope chemistry scheme</term><term>Isotope signatures</term><term>Isotopic</term><term>Isotopic composition</term><term>Isotopic compositions</term><term>Krol</term><term>Large deposition velocities</term><term>Latitudinal</term><term>Latitudinal gradient</term><term>Latitudinal gradient section</term><term>Latitudinal gradients</term><term>Latitudinal variability</term><term>Leaf mesophyll tissue</term><term>Lower stratosphere</term><term>Mace head</term><term>Maize crop</term><term>Marine sector</term><term>Measurement data</term><term>Meteorological data</term><term>Model domain</term><term>Model performance</term><term>Model results</term><term>Model scenarios</term><term>Model setup</term><term>Model subdomain</term><term>Model value</term><term>Model values</term><term>Molecular hydrogen</term><term>Novelli</term><term>Operational data</term><term>Other species</term><term>Other wind directions</term><term>Overall performance</term><term>Overall value</term><term>Parametrization</term><term>Photochemical</term><term>Photochemical oxidation</term><term>Photochemical production</term><term>Photochemical removal</term><term>Photochemical source</term><term>Photochemical source magnitude</term><term>Photochemical source magnitudes</term><term>Phys</term><term>Pieterse</term><term>Previous sections</term><term>Previous study</term><term>Quay</term><term>Rahn</term><term>Rainforest</term><term>Realistic values</term><term>Reference scenario</term><term>Regular investigation</term><term>Rhee</term><term>Road transportation</term><term>Rohrer</term><term>Same time</term><term>Sampling data</term><term>Savannah ecosystem types</term><term>Savannah ecosystems</term><term>Scenario</term><term>Seasonal cycle</term><term>Seasonal variability</term><term>Seasonal variation</term><term>Similar reasons</term><term>Simulation</term><term>Snow surfaces</term><term>Soil uptake</term><term>Spatial variability</term><term>Standard deviation</term><term>Stratosphere</term><term>Stratospheric</term><term>Stratospheric boundary condition</term><term>Stratospheric correction</term><term>Stratospheric parametrization</term><term>Surface emissions</term><term>Synthesis inversion</term><term>Technical report</term><term>Term accounts</term><term>Threshold pressure level</term><term>Trace gases</term><term>Troposphere</term><term>Tropospheric</term><term>Tropospheric burden</term><term>Tropospheric chemistry</term><term>Tropospheric composition</term><term>Tropospheric lifetime</term><term>Upper quartile</term><term>Upper quartiles</term><term>Urban area</term><term>Variability</term><term>Variational data assimilation</term><term>Vegetation leaf surfaces</term><term>Vegetation surfaces</term><term>Vertical transport</term><term>Water surfaces</term><term>Weather forecasts</term><term>Wetted surfaces</term><term>Wind directions</term><term>Wind sector</term><term>Xation</term><term>Xation processes</term><term>Xiao</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biomasse</term><term>Changement climatique</term><term>écosystème</term><term>Combustible fossile</term><term>Répartition géographique</term><term>Simulation</term><term>Zone urbaine</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">This work reassesses the global atmospheric budget of H2 with the TM5 model. The recent adjustment of the calibration scale for H2 translates into a change in the tropospheric burden. Furthermore, the ECMWF Reanalysis‐Interim (ERA‐Interim) data from the European Centre for Medium‐Range Weather Forecasts (ECMWF) used in this study show slower vertical transport than the operational data used before. Consequently, more H2 is removed by deposition. The deposition parametrization is updated because significant deposition fluxes for snow, water, and vegetation surfaces were calculated in our previous study. Timescales of 1–2 h are asserted for the transport of H2 through the canopies of densely vegetated regions. The global scale variability of H2 and δ[DH2] is well represented by the updated model. H2 is slightly overestimated in the Southern Hemisphere because too little H2 is removed by dry deposition to rainforests and savannahs. The variability in H2 over Europe is further investigated using a high‐resolution model subdomain. It is shown that discrepancies between the model and the observations are mainly caused by the finite model resolution. The tropospheric burden is estimated at 165±8 Tg H2. The removal rates of H2 by deposition and photochemical oxidation are estimated at 53±4 and 23±2 Tg H2/yr, resulting in a tropospheric lifetime of 2.2±0.2 year.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>France</li><li>Pays-Bas</li><li>Royaume-Uni</li><li>Suisse</li><li>États-Unis</li></country><region><li>Angleterre</li><li>Bade-Wurtemberg</li><li>District de Darmstadt</li><li>District de Karlsruhe</li><li>Grand Londres</li><li>Hesse (Land)</li><li>Rhénanie-Palatinat</li><li>Utrecht (province)</li></region><settlement><li>Francfort-sur-le-Main</li><li>Heidelberg</li><li>Londres</li><li>Mayence</li><li>Utrecht</li></settlement><orgName><li>Université Johann Wolfgang Goethe de Francfort-sur-le-Main</li><li>Université de Londres</li></orgName></list><tree><country name="Pays-Bas"><region name="Utrecht (province)"><name sortKey="Pieterse, G" sort="Pieterse, G" uniqKey="Pieterse G" first="G." last="Pieterse">G. Pieterse</name></region><name sortKey="Batenburg, A M" sort="Batenburg, A M" uniqKey="Batenburg A" first="A. M." last="Batenburg">A. M. Batenburg</name><name sortKey="Krol, M C" sort="Krol, M C" uniqKey="Krol M" first="M. C." last="Krol">M. C. Krol</name><name sortKey="Krol, M C" sort="Krol, M C" uniqKey="Krol M" first="M. C." last="Krol">M. C. Krol</name><name sortKey="Popa, M E" sort="Popa, M E" uniqKey="Popa M" first="M. E." last="Popa">M. E. Popa</name><name sortKey="Popa, M E" sort="Popa, M E" uniqKey="Popa M" first="M. E." last="Popa">M. E. Popa</name><name sortKey="Rockmann, T" sort="Rockmann, T" uniqKey="Rockmann T" first="T." last="Röckmann">T. Röckmann</name><name sortKey="Vermeulen, A T" sort="Vermeulen, A T" uniqKey="Vermeulen A" first="A. T." last="Vermeulen">A. T. Vermeulen</name></country><country name="Allemagne"><region name="Rhénanie-Palatinat"><name sortKey="M Brenninkmeijer, C A" sort="M Brenninkmeijer, C A" uniqKey="M Brenninkmeijer C" first="C. A." last="M. Brenninkmeijer">C. A. M. Brenninkmeijer</name></region><name sortKey="Engel, A" sort="Engel, A" uniqKey="Engel A" first="A." last="Engel">A. Engel</name><name sortKey="Hammer, S" sort="Hammer, S" uniqKey="Hammer S" first="S." last="Hammer">S. Hammer</name><name sortKey="Jordan, A" sort="Jordan, A" uniqKey="Jordan A" first="A." last="Jordan">A. Jordan</name></country><country name="Royaume-Uni"><noRegion><name sortKey="O Doherty, S" sort="O Doherty, S" uniqKey="O Doherty S" first="S." last="O'Doherty">S. O'Doherty</name></noRegion><name sortKey="Fisher, R E" sort="Fisher, R E" uniqKey="Fisher R" first="R. E." last="Fisher">R. E. Fisher</name><name sortKey="Forster, G" sort="Forster, G" uniqKey="Forster G" first="G." last="Forster">G. Forster</name><name sortKey="Grant, A" sort="Grant, A" uniqKey="Grant A" first="A." last="Grant">A. Grant</name><name sortKey="Lowry, D" sort="Lowry, D" uniqKey="Lowry D" first="D." last="Lowry">D. Lowry</name><name sortKey="Nisbet, E G" sort="Nisbet, E G" uniqKey="Nisbet E" first="E. G." last="Nisbet">E. G. Nisbet</name><name sortKey="Sturges, W T" sort="Sturges, W T" uniqKey="Sturges W" first="W. T." last="Sturges">W. T. Sturges</name></country><country name="Australie"><noRegion><name sortKey="Steele, L P" sort="Steele, L P" uniqKey="Steele L" first="L. P." last="Steele">L. P. Steele</name></noRegion><name sortKey="Krummel, P B" sort="Krummel, P B" uniqKey="Krummel P" first="P. B." last="Krummel">P. B. Krummel</name><name sortKey="Langenfelds, R L" sort="Langenfelds, R L" uniqKey="Langenfelds R" first="R. L." last="Langenfelds">R. L. Langenfelds</name></country><country name="États-Unis"><noRegion><name sortKey="Wang, H J" sort="Wang, H J" uniqKey="Wang H" first="H. J." last="Wang">H. J. Wang</name></noRegion></country><country name="France"><noRegion><name sortKey="Schmidt, M" sort="Schmidt, M" uniqKey="Schmidt M" first="M." last="Schmidt">M. Schmidt</name></noRegion><name sortKey="Yver, C" sort="Yver, C" uniqKey="Yver C" first="C." last="Yver">C. Yver</name></country><country name="Suisse"><noRegion><name sortKey="Reimann, S" sort="Reimann, S" uniqKey="Reimann S" first="S." last="Reimann">S. Reimann</name></noRegion><name sortKey="Steinbacher, M" sort="Steinbacher, M" uniqKey="Steinbacher M" first="M." last="Steinbacher">M. Steinbacher</name><name sortKey="Vollmer, M K" sort="Vollmer, M K" uniqKey="Vollmer M" first="M. K." last="Vollmer">M. K. Vollmer</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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