Atmospheric budget of acetone
The atmospheric budget and distribution of acetone are investigated by using a priori estimates of sources and sinks to constrain a global three-dimensional atmospheric model simulation and then using atmospheric observations from 14 surface sites and 5 aircraft missions to improve these estimates t...
Published in: | Journal of Geophysical Research: Atmospheres |
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ftharvardudash:oai:dash.harvard.edu:1/14121757 2023-05-15T15:11:01+02:00 Atmospheric budget of acetone Jacob, Daniel James Field, Brendan Jin, Emily Bey, Isabelle Li, Qinbin Logan, Jennifer A. Yantosca, Robert M. Singh, Hanwant 2002 application/pdf http://nrs.harvard.edu/urn-3:HUL.InstRepos:14121757 https://doi.org/10.1029/2001JD000694 en_US eng Wiley-Blackwell doi:10.1029/2001JD000694 J. Geophys. Res. Jacob, Daniel J., Brendan D. Field, Emily M. Jin, Isabelle Bey, Qinbin Li, Jennifer A. Logan, Robert M. Yantosca, and Hanwant B. Singh. 2002. “Atmospheric Budget of Acetone.” Journal of Geophysical Research 107 (D10). doi:10.1029/2001jd000694. 0148-0227 http://nrs.harvard.edu/urn-3:HUL.InstRepos:14121757 Acetone tropospheric chemistry propane inverse modeling sea-air exchange biosphere-atmosphere interactions Journal Article 2002 ftharvardudash https://doi.org/10.1029/2001JD000694 https://doi.org/10.1029/2001jd000694 2022-04-05T18:07:02Z The atmospheric budget and distribution of acetone are investigated by using a priori estimates of sources and sinks to constrain a global three-dimensional atmospheric model simulation and then using atmospheric observations from 14 surface sites and 5 aircraft missions to improve these estimates through an inversion analysis. Observations over the South Pacific imply a large photochemical marine source of acetone, either from the ocean or from marine organic aerosol. Low concentrations of acetone measured at European sites in winter-spring and in the Arctic in summer suggest a large microbial ocean sink. The summer-to-fall decrease of concentrations observed in Europe argues against a large source from plant decay. Continental observations in the tropics and at northern midlatitudes in summer imply a large source from terrestrial vegetation. Observations in the Northern Hemisphere outside summer imply a large source from atmospheric oxidation of anthropogenic isoalkanes (propane, isobutane, isopentane). Model simulation of isoalkanes and comparison to observations yields best global emission estimates of 12 Tg C yr−1 for propane (including only 0.6 Tg C yr−1 from biomass burning), 3.6 Tg C yr−1 for isobutane, and 5.0 Tg C yr−1 for isopentane. Our best estimate of the global acetone source is 95 Tg yr−1. The mean tropospheric lifetime of acetone is estimated to be 15 days. Terrestrial vegetation and oceans are the principal sources of acetone in the tropopause region (0.1–0.7 ppbv) except in the extratropical Northern Hemisphere, where oxidation of isoalkanes is more important. Engineering and Applied Sciences Version of Record Article in Journal/Newspaper Arctic Harvard University: DASH - Digital Access to Scholarship at Harvard Arctic Pacific Journal of Geophysical Research: Atmospheres 107 D10 ACH 5-1 ACH 5-17 |
institution |
Open Polar |
collection |
Harvard University: DASH - Digital Access to Scholarship at Harvard |
op_collection_id |
ftharvardudash |
language |
English |
topic |
Acetone tropospheric chemistry propane inverse modeling sea-air exchange biosphere-atmosphere interactions |
spellingShingle |
Acetone tropospheric chemistry propane inverse modeling sea-air exchange biosphere-atmosphere interactions Jacob, Daniel James Field, Brendan Jin, Emily Bey, Isabelle Li, Qinbin Logan, Jennifer A. Yantosca, Robert M. Singh, Hanwant Atmospheric budget of acetone |
topic_facet |
Acetone tropospheric chemistry propane inverse modeling sea-air exchange biosphere-atmosphere interactions |
description |
The atmospheric budget and distribution of acetone are investigated by using a priori estimates of sources and sinks to constrain a global three-dimensional atmospheric model simulation and then using atmospheric observations from 14 surface sites and 5 aircraft missions to improve these estimates through an inversion analysis. Observations over the South Pacific imply a large photochemical marine source of acetone, either from the ocean or from marine organic aerosol. Low concentrations of acetone measured at European sites in winter-spring and in the Arctic in summer suggest a large microbial ocean sink. The summer-to-fall decrease of concentrations observed in Europe argues against a large source from plant decay. Continental observations in the tropics and at northern midlatitudes in summer imply a large source from terrestrial vegetation. Observations in the Northern Hemisphere outside summer imply a large source from atmospheric oxidation of anthropogenic isoalkanes (propane, isobutane, isopentane). Model simulation of isoalkanes and comparison to observations yields best global emission estimates of 12 Tg C yr−1 for propane (including only 0.6 Tg C yr−1 from biomass burning), 3.6 Tg C yr−1 for isobutane, and 5.0 Tg C yr−1 for isopentane. Our best estimate of the global acetone source is 95 Tg yr−1. The mean tropospheric lifetime of acetone is estimated to be 15 days. Terrestrial vegetation and oceans are the principal sources of acetone in the tropopause region (0.1–0.7 ppbv) except in the extratropical Northern Hemisphere, where oxidation of isoalkanes is more important. Engineering and Applied Sciences Version of Record |
format |
Article in Journal/Newspaper |
author |
Jacob, Daniel James Field, Brendan Jin, Emily Bey, Isabelle Li, Qinbin Logan, Jennifer A. Yantosca, Robert M. Singh, Hanwant |
author_facet |
Jacob, Daniel James Field, Brendan Jin, Emily Bey, Isabelle Li, Qinbin Logan, Jennifer A. Yantosca, Robert M. Singh, Hanwant |
author_sort |
Jacob, Daniel James |
title |
Atmospheric budget of acetone |
title_short |
Atmospheric budget of acetone |
title_full |
Atmospheric budget of acetone |
title_fullStr |
Atmospheric budget of acetone |
title_full_unstemmed |
Atmospheric budget of acetone |
title_sort |
atmospheric budget of acetone |
publisher |
Wiley-Blackwell |
publishDate |
2002 |
url |
http://nrs.harvard.edu/urn-3:HUL.InstRepos:14121757 https://doi.org/10.1029/2001JD000694 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
doi:10.1029/2001JD000694 J. Geophys. Res. Jacob, Daniel J., Brendan D. Field, Emily M. Jin, Isabelle Bey, Qinbin Li, Jennifer A. Logan, Robert M. Yantosca, and Hanwant B. Singh. 2002. “Atmospheric Budget of Acetone.” Journal of Geophysical Research 107 (D10). doi:10.1029/2001jd000694. 0148-0227 http://nrs.harvard.edu/urn-3:HUL.InstRepos:14121757 |
op_doi |
https://doi.org/10.1029/2001JD000694 https://doi.org/10.1029/2001jd000694 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
107 |
container_issue |
D10 |
container_start_page |
ACH 5-1 |
op_container_end_page |
ACH 5-17 |
_version_ |
1766341932900941824 |