Title: Towards a climate-dependent paradigm of ammonia emission and deposition
Authors: SUTTON MarkREIS S.RIDDICK StuartDRAGOSITS U.NEMITZ E.THEOBALD M.r.TANG Y.s.BRABAN CfVIENO MassimoDORE TonyMITCHELL Robert FWANLESS SarahDAUNT FrancisFOWLER D.BLACKALL Trevor D.Milford CeliaFlechard CLOUBET B.MASSAD RaiaCELLIER P.PERSONNE E.COHEUR Pierre-FrancoisCLARISSE LievenVAN DAMME MartinNGADI YasmineCLERBAUX CathySKJOTH Carste AmbelasGEELS CamillaHERTEL OWICHINK-KRUIT R.PINDER RobBASH Jesse O.WALKER JohnSIMPSON DavidHORVATH LMISSELBROOK T.BLEEKER AlbertDENTENER FranciscusDE VRIES W.
Citation: PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES vol. 368 no. 1621 p. 20130166
Publisher: ROYAL SOC
Publication Year: 2013
JRC N°: JRC76404
ISSN: 0080-4622
URI: http://rstb.royalsocietypublishing.org/content/368/1621/20130166
http://publications.jrc.ec.europa.eu/repository/handle/JRC76404
DOI: 10.1098/rstb.2013.0166
Type: Articles in periodicals and books
Abstract: Existing descriptions of bi-directional ammonia (NH3) land-atmosphere exchange incorporate temperature and moisture controls, and are beginning to be used in regional chemical transport models. However, such models have typically applied simpler emission factors to upscale the main NH3 emission terms. While this approach has successfully simulated the main spatial patterns on local to global scales, it fails to address the environment and climate dependence of emissions. To handle these issues, we outline the basis for a new modelling paradigm where both NH3 emissions and deposition are calculated on-line according to diurnal, seasonal and spatial differences in meteorology. We show how measurements reveal a strong, but complex pattern of climatic dependence, which is increasingly being characterized using ground-based NH3 monitoring and satellite observations, while advances in process-based modelling are illustrated for agricultural and natural sources, including a global application for seabird colonies. A future architecture for NH3 emission-deposition modelling is proposed that integrates the spatio-temporal interactions and provides the necessary foundation to assess the consequences of climate change. Based on available measurements, a first empirical estimate suggests that 5 ºC warming would increase emissions by 42%(28%-67%). Together with increased anthropogenic activity, global NH3 emissions may increase from 65(45-85) Tg N in 2008 to reach 132(89-179) Tg by 2100.
JRC Directorate:Sustainable Resources

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