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| Titel |
Global mapping of maximum emission heights and resulting vertical profiles of wildfire emissions |
| VerfasserIn |
M. Sofiev, R. Vankevich, T. Ermakova, J. Hakkarainen |
| 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. 14 ; Nr. 13, no. 14 (2013-07-24), S.7039-7052 |
| Datensatznummer |
250018779
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| Publikation (Nr.) |
 copernicus.org/acp-13-7039-2013.pdf |
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| Zusammenfassung |
| The problem of characteristic vertical profile of smoke released from
wildland fires is considered. A methodology for bottom-up evaluation of this
profile is suggested and a corresponding global dataset is calculated. The
profile estimation is based on: (i) a semi-empirical formula for plume-top
height recently suggested by the authors, (ii) satellite observations of
active wildland fires, and (iii) meteorological conditions evaluated for each
fire using output of the numerical weather prediction model. Injection
profiles of the plumes from all fires recorded globally from March 2000 till
November 2012 are estimated with a time step of 1 h. The resulting
4-dimensional dataset is split into daytime and nighttime subsets. The
subsets are projected onto a global grid with a resolution of
1° × 1° × 500 m, aggregated to a monthly
level, and normalised by total emissions in each vertical column. Evaluation
of the obtained dataset was performed in several ways. Firstly, the quality
of the semi-empirical formula for plume-top computations was evaluated using
updated MISR fire Plume Height Project data. Secondly, the upper percentiles
of the profiles are compared with an independent dataset of space lidar
CALIOP. Thirdly, the results are compared with the distribution suggested for
AEROCOM modelling community. Finally, the inter-annual variations of the
calculated profiles are estimated. |
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