cdc79417-7426-4b18-a63a-df6051b241c6 eng Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org/ 2012-03-13T17:28:20 ISO 19115:2003/19139 1.0 A new estimation of the recent tropospheric molecular hydrogen budget using atmospheric observations and variational inversion 2011-06-10T08:00:00 Atmospheric Chemistry and Physics (2011),Volume: 11, 7 3375-3392 Atmospheric Chemistry and Physics (2011) Volume: 11, Issue: 7, Pages: 3375-3392 Atmospheric Chemistry and Physics (2011) Volume: 11, 16807324 This paper presents an analysis of the recent tropospheric molecular hydrogen (H2) budget with a particular focus on soil uptake and European surface emissions. A variational inversion scheme is combined with observations from the RAMCES and EUROHYDROS atmospheric networks, which include continuous measurements performed between mid-2006 and mid-2009. Net H2 surface flux, then deposition velocity and surface emissions and finally, deposition velocity, biomass burning, anthropogenic and N2 fixation-related emissions were simultaneously inverted in several scenarios. These scenarios have focused on the sensibility of the soil uptake value to different spatio-temporal distributions. The range of variations of these diverse inversion sets generate an estimate of the uncertainty for each term of the H2 budget. The net H2 flux per region (High Northern Hemisphere, Tropics and High Southern Hemisphere) varies between ?8 and +8 Tg yr?1. The best inversion in terms of fit to the observations combines updated prior surface emissions and a soil deposition velocity map that is based on bottom-up and top-down estimations. Our estimate of global H2 soil uptake is ?59±9 Tg yr?1. Forty per cent of this uptake is located in the High Northern Hemisphere and 55% is located in the Tropics. In terms of surface emissions, seasonality is mainly driven by biomass burning emissions. The inferred European anthropogenic emissions are consistent with independent H2 emissions estimated using a H2/CO mass ratio of 0.034 and CO emissions within the range of their respective uncertainties. Additional constraints, such as isotopic measurements would be needed to infer a more robust partition of H2 sources and sinks. Copernicus GmbH (Copernicus Publications) +49 5519003390 +49 55190033970 Bahnhofsallee 1e Göttingen 37081 Germany info@copernicus.org http://www.copernicus.org/ Caville E. Yver LSCE Gif sur Yvette 91191 France camille.yver@lsce.ipsl.fr www.lsce.ipsl.fr WWW:LINK-1.0-http--related Isabelle C. Pison LSCE;Versaille Saint-Quentin-en-Yvelines (UVSQ) University +33 0169089459 +33 0169087716 55 avenue de Paris Versailles cedex 78035 France isabelle.pison@lsce.ipsl.fr http://www.lsce.ipsl.fr/Pisp/30/isabelle.pison.html Audry Fortems-Cheiney LSCE Gif sur Yvette 91191 audrey.fortems@lsce.ipsl.fr Frédéric Chevallier LSCE +33 0169087729 +33 0169087716 l’Orme des Merisiers Bat 701 Gif sur Yvette 91191 France frederic.chevallier@lsce.ipsl.fr http://www.lsce.ipsl.fr/Pisp/6/frederic.chevallier.html Martina Schmidt LSCE +33 0169086915 +33 0169087716 l’Orme des Merisiers Bat 701 Gif sur Yvette 91191 France Martina.Schmidt@lsce.ipsl.fr http://www.lsce.ipsl.fr/Phocea/Membres/Annuaire/index.php?nomrecherche=SCHMIDT WWW:LINK-1.0-http--related Michel Ramonet LSCE +33 0169084014 +33 0169087716 l’Orme des Merisiers Bat 701 Gif sur Yvette 91191 France michel.ramonet@lsce.ipsl.fr http://www.lsce.ipsl.fr/Phocea/Membres/Annuaire/index.php?nomrecherche=RAMONET WWW:LINK-1.0-http--related Armin Jordan Max Planck Institute for Biogeochemistry (MPI-BGC) Hans-Knöll-Str. 10 Jena 07745 Germany ajordan@bgc-jena.mpg.de http://www.bgc-jena.mpg.de/service/iso_gas_lab/pmwiki/pmwiki.php/GasLab/HOMEGasLab WWW:LINK-1.0-http--partners Ole Amund Søvde Center for International Climate and Environmental Research – Oslo (CICERO),University of Oslo, +47 22858762 CICERO Pb. 1129 Blindern Oslo N-0318 Norway o.a.sovde@cicero.uio.no asovde@cicero.uio.no http://www.cicero.uio.no/Home/index_e.aspx WWW:LINK-1.0-http--related Andreas Engel Institute for Atmospheric and Environmental Sciences,J. W. Goethe University +49 6979828133 +49 6979828331 G. Voigt-Strasse 14 Frankfurt D-60325 Germany an.engel@meteor.uni-frankfurt.de http://www.iau.uni-frankfurt.de/index.html WWW:LINK-1.0-http--partners Rebecca E. Fisher Department of Earth Sciences, Royal Holloway, University of London, +44 1784443628 Egham Hill Egham Surrey TW20 0EX United Kingdom R.E.Fisher@rhul.ac.uk r.fisher@es.rhul.ac.uk www.rhul.ac.uk WWW:LINK-1.0-http--partners David Lowry Department of Earth Sciences, Royal Holloway, University of London, +44 1784443105 Egham Hill Egham Surrey TW20 0EX United Kingdom D.Lowry@rhul.ac.uk http://pure.rhul.ac.uk/portal/en/persons/david-lowry(f5d95fae-7891-44a1-b91a-04e8d211d29a).html WWW:LINK-1.0-http--related Euan G. Nisbet Department of Earth Sciences, Royal Holloway, University of London, +44 1784443809 Egham Hill Egham Surrey TW20 0EX United Kingdom E.Nisbet@rhul.ac.uk http://pure.rhul.ac.uk/portal/en/persons/euan-nisbet(2ff4ba1e-64af-450c-b39d-eb64b7f809d1).html WWW:LINK-1.0-http--partners Ingeborg Levin Institute of Environmental Physics,University of Heidelberg +49 06221546330 +49 06221546405 Im Neuenheimer Feld 229 Heidelberg D-69120 Germany ingeborg.levin@iup.uni-heidelberg.de www.iup.uni-heidelberg.de WWW:LINK-1.0-http--partners Samuel Hammer Institute of Environmental Physics,University of Heidelberg +49 6221546529 Im Neuenheimer Feld 229 Heidelberg D-69120 Germany Samuel.Hammer@iup.uni-heidelberg.de shammer@iup.uni-heidelberg.de www.iup.uni-heidelberg.de WWW:LINK-1.0-http--partners Jaroslaw Necki Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, +48 126173046 Al. Mickiewicza 30 Krakow 30 - 059 Poland necki@agh.edu.pl http://www.ftj.agh.edu.pl/indexe.html WWW:LINK-1.0-http--partners Jakub Bartyzel Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, Al. Mickiewicza 30 Krakow 30 - 059 Poland jakub.Bartyzel@fis.agh.edu.pl http://www.ftj.agh.edu.pl/indexe.html WWW:LINK-1.0-http--partners Stefan Reimann Swiss Federal Laboratories for Materials Science and Research (EMPA) +41 587654638 Überlandstrasse 129 Dübendorf ZH CH-8600 Switzerland Stefan.Reimann@empa.ch http://www.empa.ch WWW:LINK-1.0-http--partners Martin K. Vollmer Swiss Federal Laboratories for Materials Science and Research (EMPA) +41 587654242 Ueberlandstr. 129 Dübendorf ZH CH-8600 Switzerland Martin.Vollmer@empa.ch http://www.empa.ch WWW:LINK-1.0-http--partners Martin Steinbacher Swiss Federal Laboratories for Materials Science and Research (EMPA) +41 587654048 Ueberlandstr. 129 Duebendorf ZH CH-8600 Switzerland Martin.Steinbacher@empa.ch http://www.empa.ch/plugin/template/empa/357/*/---/l=/uacc=mst134 WWW:LINK-1.0-http--related Tuula Aalto Finnish Meteorological Institute +358 505550006 Erik Palménin aukio Helsinki FI-00560 Finland tuula.aalto@fmi.fi en.ilmatieteenlaitos.fi WWW:LINK-1.0-http--partners Michela Maione The University of Urbino "Carlo Bo" - Chemical Science Institute +39 0722303316 +39 0722303310 Piazza Rinascimento 6 Urbino PU 61029 Italy michela.maione@uniurb.it http://www.uniurb.it WWW:LINK-1.0-http--partners Jgor Arduini The University of Urbino "Carlo Bo" - Chemical Science Institute +39 0722303316 +39 0722303311 Piazza Rinascimento 6 Urbino PU 61029 Italy j.arduini@uniurb.it www.uniurb.it Simon O'Doherty School of Chemistry, University of Bristol, +44 1179289186 +44 1179252990 Cantocks Close Bristol BS8 1TS United Kingdom S.ODoherty@bristol.ac.uk http://www.bris.ac.uk/chemistry/research WWW:LINK-1.0-http--partners Aoife Grant School of Chemistry, University of Bristol, +44 01173317042 +44 01179252990 Cantocks Close Bristol BS8 1TS United Kingdom Aoife.Grant@bristol.ac.uk http://www.bris.ac.uk/chemistry/research WWW:LINK-1.0-http--partners W. T. Sturges School of Environmental Sciences, University of East Anglia, +44 1603562018 +44 1603591327 Norwich Research Park Norwich NR4 7TJ United Kingdom w.sturges@uea.ac.uk http://www.uea.ac.uk/env/people/facstaff/sturgesb WWW:LINK-1.0-http--partners Grant L. Forster School of Environmental Sciences, University of East Anglia, Norwich, UK +44 1603593837 Norwich Research Park Norwich NR4 7TJ United Kingdom g.forster@uea.ac.uk http://www.uea.ac.uk/ WWW:LINK-1.0-http--partners Chris Lunder Norwegian Institute for Air Research (NILU) +4763898209 +4763898050 Instituttveien 18 Kjeller NO-2027 Norway chris.lunder@nilu.no www.nilu.no WWW:LINK-1.0-http--partners Voronina E. Privalov Voeikov Main Geophysical Observatory, Karbyshev Street 7 St. Petersburg 194021 Russian Federation vep@peterlink.ru www.peterlink.ru WWW:LINK-1.0-http--partners Nina Paramonov Voeikov Main Geophysical Observatory, Karbyshev Street 7 St. Petersburg 194021 Russian Federation reshal@peterlink.ru www.peterlink.ru WWW:LINK-1.0-http--partners Anja Werner DWD Hohenpeissenberg Meteorological Observatory Albin-Schwaiger-Weg 10 Hohenpeissenberg 82383 Germany anja.werner@dwd.de www.dwd.de Philippe Bousquet LSCE,Versailles Saint-Quentin-en-Yvelines (UVSQ) University +33 0169087718 +33 0169087716 55 avenue de Paris Versailles cedex 78035 France philippe.bousquet@lsce.ipsl.fr http://www.lsce.ipsl.fr/Pisp/20/philippe.bousquet.html WWW:LINK-1.0-http--related https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=cdc79417-7426-4b18-a63a-df6051b241c6&fname=mountain_witness__s.png thumbnail png SHARE tropospheric molecular hydrogen budget H2 European surface emissions continuous measurements inversion of tropospheric H2 sources RAMCES EUROHYDROS eng climatologyMeteorologyAtmosphere environment geoscientificInformation -11.5 43.2 35.3 81.4 http://www.atmos-chem-phys.net/11/3375/2011/acp-11-3375-2011.html WWW:LINK-1.0-http--related Abstract:"A new estimation of the recent tropospheric molecular hydrogen budget using atmospheric observations and variational inversion". https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=37874&fname=acp-11-3375-2011.pdf&access=private WWW:DOWNLOAD-1.0-http--download acp-11-3375-2011.pdf Full Text(pdf):"A new estimation of the recent tropospheric molecular hydrogen budget using atmospheric observations and variational inversion" "A new estimation of the recent tropospheric molecular hydrogen budget using atmospheric observations and variational inversion". Atmos. Chem. Phys., 11, Issue: 7,3375–3392, 2011 Yver C.E., Pison, I.C., Fortems-Cheiney, A., Schmidt, M., Chevallier, F., Ramonet, M., Jordan, A., Søvde, O.A., Engel, A., Fisher, R.E., Lowry, D., Nisbet, E.G., Levin, I., Hammer, S., Necki, J., Bartyzel, J., Reimann, S., Vollmer, M.K., Steinbacher, M., Aalto, T., Maione, M., Arduini, J., O'Doherty, S., Grant, A., Sturges, W.T., Forster, G.L., Lunder, C.R., Privalov, V., Paramonova, N., Werner, A., Bousquet, P.