Journal article
A three-dimensional synthesis inversion of the molecular hydrogen cycle: Sources and sinks budget and implications for the soil uptake
P Bousquet, C Yver, I Pison, YS Li, A Fortems, D Hauglustaine, S Szopa, PJ Rayner, P Novelli, R Langenfelds, P Steele, M Ramonet, M Schmidt, P Foster, C Morfopoulos, P Ciais
Journal of Geophysical Research Atmospheres | Published : 2011
DOI: 10.1029/2010JD014599
Abstract
Our understanding of the global budget of atmospheric hydrogen (H 2) contains large uncertainties. An atmospheric Bayesian inversion of H2 sources and sinks is presented for the period 1991-2004, based on a two networks of flask measurement stations. The types of fluxes and the spatial scales potentially resolvable by the inversion are first estimated from an analysis of the correlations of errors between the different processes and regions emitting or absorbing H2. Then, the estimated budget of H2 and its uncertainties is presented and discussed, for five groups of fluxes and three groups of large regions, in terms of mean fluxes, seasonal and interannual variations, and long-term trends. O..
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Awarded by Australian Research Council
Funding Acknowledgements
French Atomic agency (CEA) and Laboratoire des Sciences du Climat et de l'Environnement (LSCE) are to be thanked to have provided computing time to this work trough the GENCI project. Part of this work is funded by French CNRS and by EU projects HYMN and EUROHYDROS. We acknowledge Guido Van der Werf for providing H<INF>2</INF> emissions from fires, and the OMI science team to make the OMI retrievals available. We acknowledge the TRANSCOM community for the region map used in this work. We thank Philippe Peylin for his contribution to the codes used in this work to analyze the data. Peter Rayner is the recipient of an Australian Research Council Professorial Fellowship (DP1096309).