World Library  

QR link for Estimates of European Emissions of Methyl Chloroform Using a Bayesian Inversion Method : Volume 14, Issue 6 (25/03/2014)
Add to Book Shelf
Flag as Inappropriate
Email this Book

Estimates of European Emissions of Methyl Chloroform Using a Bayesian Inversion Method : Volume 14, Issue 6 (25/03/2014)

By Maione, M.

Click here to view

Book Id: WPLBN0003974416
Format Type: PDF Article :
File Size: Pages 48
Reproduction Date: 2015

Title: Estimates of European Emissions of Methyl Chloroform Using a Bayesian Inversion Method : Volume 14, Issue 6 (25/03/2014)  
Author: Maione, M.
Volume: Vol. 14, Issue 6
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Description
Description: Department of Basic Science and Foundations, University of Urbino, Urbino, Italy. Methyl chloroform (MCF) is a man-made chlorinated solvent contributing to the destruction of stratospheric ozone and is controlled under the Montreal Protocol on Substances that Deplete the Ozone Layer. Long-term, high-frequency observations of MCF carried out at three European sites show a constant decline of the background mixing ratios of MCF. However, we observe persistent non-negligible mixing ratio enhancements of MCF in pollution episodes suggesting unexpectedly high ongoing emissions in Europe. In order to identify the source regions and to give an estimate of the magnitude of such emissions, we have used a Bayesian inversion method and a point source analysis, based on high-frequency long-term observations at the three European sites.
The inversion identified south-eastern France (SEF) as a region with enhanced MCF emissions. This estimate was confirmed by the point source analysis. We performed this analysis using an eleven-year data set, from January 2002 to December 2012. Overall emissions estimated for the European study domain decreased nearly exponentially from 1.1 Gg yr−1 in 2002 to 0.32 Gg yr−1 in 2012, of which the estimated emissions from the SEF region accounted for 0.49 Gg yr−1 in 2002 and 0.20 Gg yr−1 in 2012. The European estimates are a significant fraction of the total semi-hemisphere (30–90° N) emissions, contributing a minimum of 9.8% in 2004 and a maximum of 33.7% in 2011, of which on average 50% are from the SEF region. On the global scale, the SEF region is thus responsible from a minimum of 2.6% (in 2003) to a maximum of 10.3% (in 2009) of the global MCF emissions.


Summary
Estimates of European emissions of methyl chloroform using a Bayesian inversion method

Excerpt
Barletta, B., Meinardi, S., Simpson, I. J., Rowland, F. S., Chan, C.-Y., Wang, X., Zou, S., Chan, L. Y., and Blake, D. R.: Ambient halocarbon mixing ratios in 45 Chinese cities, Atmos. Environ., 40, 7706–7719, 2006.; Coll, I., Rousseau, C., Barletta, B., Meinard, S., and Blake, D. R.: Evaluation of an urban NMHC emission inventory by measurements and impact on CTM results, Atmos. Environ., 44, 3843–3855, 2010.; Eckhardt, S., Prata, A. J., Seibert, P., Stebel, K., and Stohl, A.: Estimation of the vertical profile of sulfur dioxide injection into the atmosphere by a volcanic eruption using satellite column measurements and inverse transport modeling, Atmos. Chem. Phys., 8, 3881–3897, doi:10.5194/acp-8-3881-2008, 2008.; Fischer, H., Kormann, R., Klüpfel, T., Gurk, Ch., Königstedt, R., Parchatka, U., Mühle, J., Rhee, T. S., Brenninkmeijer, C. A. M., Bonasoni, P., and Stohl, A.: Ozone production and trace gas correlations during the June 2000 MINATROC intensive measurement campaign at Mt. Cimone, Atmos. Chem. Phys., 3, 725–738, doi:10.5194/acp-3-725-2003, 2003.; Giostra, U., Furlani, F., Arduini, J., Cava, D., Manning, A. J., O'Doherty, S. J., Reimann, S., and Maione, M.: The determination of a regional atmospheric background mixing ratio for anthropogenic greenhouse gases: a comparison of two independent methods, Atmos. Environ., 45, 7396–7405, 2011.; Grant, A., Witham, C. S., Simmonds, P. G., Manning, A. J., and O'Doherty, S.: A 15 year record of high-frequency, in situ measurements of hydrogen at Mace Head, Ireland, Atmos. Chem. Phys., 10, 1203–1214, doi:10.5194/acp-10-1203-2010, 2010.; Graziosi, F.: A Bayesian inversion technique for estimating European emissions of methyl chloroform, Ph.D. thesis, University of Urbino Carlo Bo, Urbino, 2013.; Henne, S., Brunner, D., Folini, D., Solberg, S., Klausen, J., and Buchmann, B.: Assessment of parameters describing representativeness of air quality in-situ measurement sites, Atmos. Chem. Phys., 10, 3561–3581, doi:10.5194/acp-10-3561-2010, 2010.; Keller, C. A., Brunner, D., Henne, S., Vollmer, M. K., O'Doherty, S., and Reimann, S.: Evidence for under-reported western European emissions of the potent greenhouse gas HFC-23, Geophys. Res. Lett., 38, L15808, doi:10.1029/2011GL047976, 2011.; Keller, C. A., Hill, M., Vollmer, M. K., Henne, S., Brunner, D., Reimann, S., O'Doherty, S., Arduini, J., Maione, M., Ferenczi, Z., Haszpra, L., Manning, A. J., and Peter, T.: European emissions of halogenated greenhouse gases inferred from atmospheric measurements, Environ. Sci. Technol., 46, 217–225, doi:10.1021/es202453j 2012.; Krol, M. C., Lelieveld, J., Oram, D. E., Sturrock, G. A., Penkett, S. A., Brenninkmeijer, C. A. M., Gros, V., Williams, J., and Scheeren, H. A.: Continuing emissions of methyl chloroform from Europe, Nature, 421, 131–135, 2003.; McCulloch, A. and Midgley, P. M.: The history of methyl chloroform emissions: 1951–2000, Atmos. Environ., 35, 5311–5319, 2001.; Maione, M., Giostra, U., Arduini, J., Furlani, F., Graziosi, F., Lo Vullo, E., and Bonasoni, P.: Ten years of continuous observations of stratospheric ozone depleting gases at Monte Cimone (Italy) – Comments on the effectiveness of the Montreal Protocol from a regional perspective, Sci. Total Environ., 445–446, 155–164, 2013.; Miller, B. R., Weiss, R. F., Salameh, P. K., Tanhua, T., Greally, B. R., Mühle J., and Simmonds, P. G.: Medusa: a sample preconcentration and GC/MS detector system for in situ measurements of atmospheric trace halocarbons, hydrocarbons, and sulphur compounds, Anal. Chem., 80, 1536–1545, 2008.; Montzka, S. A., Spivakovsky, C

 

Click To View

Additional Books


  • The Time Dependence of Molecular Iodine ... (by )
  • Molecular Hydrogen (H2) Combustion Emiss... (by )
  • Aircraft Observations of Five Pockets of... (by )
  • Explicit Calculation of Indirect Global ... (by )
  • Observations of Lunar Tides in the Mesos... (by )
  • Can We Explain the Trends in European Oz... (by )
  • Northern Winter Stratospheric Temperatur... (by )
  • Temperature and Humidity Dependence of S... (by )
  • Enhanced Production of Oxidised Mercury ... (by )
  • A 12-year Observation of Water-soluble I... (by )
  • Transport Pathways of Peroxyacetyl Nitra... (by )
  • Stratospheric Ozone Trends and Variabili... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.