Journal Article

PreJuSER-17052

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Numerical simulations examining the possible role of anthropogenic and volcanic emisions during the 1997 Indonesian fires

Pfeffer, M. A. ; Langmann, B. ; Heil, A.FZJ* ; Graf, H.-f.

2011
Springer Netherlands Dordrecht

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Please use a persistent id in citations: doi:10.1007/s11869-010-0105-4

Abstract: The regional atmospheric chemistry and climate model REMOTE has been used to conduct numerical simulations of the atmosphere during the catastrophic Indonesian fires of 1997. These simulations represent one possible scenario of the event, utilizing the RETRO wildland fire emission database. Emissions from the fires dominate the atmospheric concentrations of O(3), CO, NO(2), and SO(2) creating many possible exceedances of the Indonesian air quality standards. The scenario described here suggests that urban anthropogenic emissions contributed to the poor air quality due primarily to the fires. The urban air pollution may have increased the total number of people exposed to exceedances of the O(3) 1-h standard by 17%. Secondary O(3) from anthropogenic emissions enhanced the conversion of SO(2) released by the fires to [Formula: see text], demonstrating that the urban pollution actively altered the atmospheric behavior and lifetime of the fire emissions. Under the conditions present during the fires, volcanic SO(2) emissions had a negligible influence on surface pollution.

Keyword(s): J ; Indonesia (auto) ; Air pollution (auto) ; Wildfires (auto)

Note: We thank Philipp Weis and Elina Marmer for their help and discussion and Sebastian Rast, Alvaro Valdebenito, Julia Lee-Taylor, and two anonymous reviewers for reviewing the manuscript. We thank the German Climate Computing Center (DKRZ) and Johann Feichter for computer time to run these experiments and Ulrike Niemeier for providing the MOZART results that were used as boundary conditions. O<INF>3</INF> measurements were kindly made available by Masatomo Fujiwara over Watukosek and by Seiichiro Yonemura over Petaling Jaya. CO measurements were made available by Hidekazu Matsueda. Andreas Richter and Mark Weber provided access to the GOME NO<INF>2</INF> observations. Martin Schultz provided access to the RETRO emissions. M. Pfeffer was funded by the Ebelin and Gerd Bucerius ZEIT Foundation and by the American Association of University Women.

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Contributing Institute(s):

1. Troposphäre (IEK-8)

Research Program(s):

1. Atmosphäre und Klima (P23)

Appears in the scientific report 2011
Notes: online first

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