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Speciation of anthropogenic emissions of non-methane volatile organic compounds: a global gridded data set for 1970–2012
- Source :
- Atmospheric Chemistry and Physics, Vol 17, Pp 7683-7701 (2017)
- Publication Year :
- 2017
- Publisher :
- Copernicus Publications, 2017.
-
Abstract
- Non-methane volatile organic compounds (NMVOCs) include a large number of chemical species which differ significantly in their chemical characteristics and thus in their impacts on ozone and secondary organic aerosol formation. It is important that chemical transport models (CTMs) simulate the chemical transformation of the different NMVOC species in the troposphere consistently. In most emission inventories, however, only total NMVOC emissions are reported, which need to be decomposed into classes to fit the requirements of CTMs. For instance, the Emissions Database for Global Atmospheric Research (EDGAR) provides spatially resolved global anthropogenic emissions of total NMVOCs. In this study the EDGAR NMVOC inventory was revised and extended in time and in sectors. Moreover the new version of NMVOC emission data in the EDGAR database were disaggregated on a detailed sector resolution to individual species or species groups, thus enhancing the usability of the NMVOC emission data by the modelling community. Region- and source-specific speciation profiles of NMVOC species or species groups are compiled and mapped to EDGAR processes (detailed resolution of sectors), with corresponding quality codes specifying the quality of the mapping. Individual NMVOC species in different profiles are aggregated to 25 species groups, in line with the common classification of the Global Emissions Initiative (GEIA). Global annual grid maps with a resolution of 0.1° × 0.1° for the period 1970–2012 are produced by sector and species. Furthermore, trends in NMVOC composition are analysed, taking road transport and residential sources in Germany and the United Kingdom (UK) as examples.
- Subjects :
- Atmospheric Science
Species groups
010504 meteorology & atmospheric sciences
Meteorology
media_common.quotation_subject
Spatially resolved
010501 environmental sciences
Atmospheric sciences
01 natural sciences
Atmospheric research
Methane
lcsh:QC1-999
Aerosol
Road transport
Troposphere
lcsh:Chemistry
chemistry.chemical_compound
Speciation
chemistry
lcsh:QD1-999
Environmental science
lcsh:Physics
0105 earth and related environmental sciences
media_common
Subjects
Details
- Language :
- English
- ISSN :
- 16807324 and 16807316
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Atmospheric Chemistry and Physics
- Accession number :
- edsair.doi.dedup.....f12f83af3c0313f0a81412b5b96fbaa3