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| Titel |
High-resolution mapping of combustion processes and implications for CO2 emissions |
| VerfasserIn |
R. Wang, S. Tao, P. Ciais, H. Z. Shen, Y. Huang, H. Chen, G. F. Shen, B. Wang, W. Li, Y. Y. Zhang, Y. Lu, D. Zhu, Y. C. Chen, X. P. Liu, W. T. Wang, X. L. Wang, W. X. Liu, B. G. Li, S. L. Piao |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 13, no. 10 ; Nr. 13, no. 10 (2013-05-23), S.5189-5203 |
| Datensatznummer |
250018665
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| Publikation (Nr.) |
 copernicus.org/acp-13-5189-2013.pdf |
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| Zusammenfassung |
| High-resolution mapping of fuel combustion and CO2 emission provides
valuable information for modeling pollutant transport, developing mitigation
policy, and for inverse modeling of CO2 fluxes. Previous global emission
maps included only few fuel types, and emissions were estimated on a grid by
distributing national fuel data on an equal per capita basis, using
population density maps. This process distorts the geographical distribution
of emissions within countries. In this study, a sub-national disaggregation
method (SDM) of fuel data is applied to establish a global
0.1° × 0.1° geo-referenced inventory of fuel
combustion (PKU-FUEL) and corresponding CO2 emissions (PKU-CO2)
based upon 64 fuel sub-types for the year 2007. Uncertainties of the emission
maps are evaluated using a Monte Carlo method. It is estimated that CO2
emission from combustion sources including fossil fuel, biomass, and solid
wastes in 2007 was 11.2 Pg C yr−1 (9.1 Pg C yr−1 and 13.3 Pg
C yr−1 as 5th and 95th percentiles). Of this, emission from fossil fuel
combustion is 7.83 Pg C yr−1, which is very close to the estimate of
the International Energy Agency (7.87 Pg C yr−1). By replacing
national data disaggregation with sub-national data in this study, the
average 95th minus 5th percentile ranges of CO2 emission for all grid
points can be reduced from 417 to 68.2 Mg km−2 yr−1. The spread
is reduced because the uneven distribution of per capita fuel consumptions
within countries is better taken into account by using sub-national fuel
consumption data directly. Significant difference in per capita CO2
emissions between urban and rural areas was found in developing countries
(2.08 vs. 0.598 Mg C/(cap. × yr)), but not in developed countries
(3.55 vs. 3.41 Mg C/(cap. × yr)). This implies that rapid
urbanization of developing countries is very likely to drive up their
emissions in the future. |
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