Global distributions of acetone in the upper troposphere from MIPAS spectra
This study reports the first global measurements of acetone (C[subscript 3]H[subscript 6]O) in the upper troposphere (UT). Profiles were obtained between 9 km and 15 km from measurements made by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard Envisat in August 2003. Err...
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Online Access: | http://www.atmos-chem-phys.net/12/757/2012/acp-12-757-2012.html http://hdl.handle.net/2381/28279 https://doi.org/10.5194/acp-12-757-2012 |
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ftleicester:oai:lra.le.ac.uk:2381/28279 2023-05-15T16:29:54+02:00 Global distributions of acetone in the upper troposphere from MIPAS spectra Moore, D.P. Remedios, J.J. Waterfall, A.M. 2013-10-11T12:19:39Z http://www.atmos-chem-phys.net/12/757/2012/acp-12-757-2012.html http://hdl.handle.net/2381/28279 https://doi.org/10.5194/acp-12-757-2012 en eng Copernicus GmbH (Copernicus Publications) on behalf of the European Geosciences Union (EGU). Atmospheric Chemistry and Physics, 2012, 12 (2), pp. 757-768 (12) 1680-7316 http://www.atmos-chem-phys.net/12/757/2012/acp-12-757-2012.html http://hdl.handle.net/2381/28279 doi:10.5194/acp-12-757-2012 1680-7324 © Author(s) 2012. This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Science & Technology Physical Sciences Meteorology & Atmospheric Sciences LIMB EMISSION-SPECTRA GEOPHYSICAL VALIDATION LOWER STRATOSPHERE HYDROGEN RADICALS CARBON-MONOXIDE ODD-HYDROGEN INSTRUMENT ENVISAT PHOTOCHEMISTRY ATMOSPHERE Journal Article Article;Journal 2013 ftleicester https://doi.org/10.5194/acp-12-757-2012 2019-03-22T20:19:10Z This study reports the first global measurements of acetone (C[subscript 3]H[subscript 6]O) in the upper troposphere (UT). Profiles were obtained between 9 km and 15 km from measurements made by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard Envisat in August 2003. Errors per profile are lower than 40 % between 180 hPa and 350 hPa. We report strong hemispheric differences in the acetone volume mixing ratios (VMRs), with average concentrations highest in the Northern Hemisphere (NH) mid-latitude UT, between 1000 pptv and 1600 pptv with maxima up to 2300 pptv. Our results show a strong enhancement of acetone relative to CO, particularly over Europe (7 pptv ppbv[superscript −1]), confirming aircraft studies. Ten-day backward trajectories from these high European values show strong contributions from air flows over North America (56 %) and 25 % from Southernmost Asia. Enhanced acetone is also observed over Greenland, Siberia and biomass burning regions of Africa. Zonal distributions show that acetone VMRs decrease rapidly with increasing altitude (decreasing pressure), particularly in the NH. Poleward of 45° S, acetone VMRs remain fairly consistent with average VMRs between 400 pptv and 500 pptv. In 5-day averages at 9 km, NH VMRs poleward of 45° N are consistently higher than Southern Hemisphere observations poleward of 45° S, by between 750 pptv and 1100 pptv. The results show a clear influence of mid-latitude and transport processes on the acetone summertime distribution. Peer-reviewed Publisher Version Article in Journal/Newspaper Greenland Siberia University of Leicester: Leicester Research Archive (LRA) Greenland Atmospheric Chemistry and Physics 12 2 757 768 |
institution |
Open Polar |
collection |
University of Leicester: Leicester Research Archive (LRA) |
op_collection_id |
ftleicester |
language |
English |
topic |
Science & Technology Physical Sciences Meteorology & Atmospheric Sciences LIMB EMISSION-SPECTRA GEOPHYSICAL VALIDATION LOWER STRATOSPHERE HYDROGEN RADICALS CARBON-MONOXIDE ODD-HYDROGEN INSTRUMENT ENVISAT PHOTOCHEMISTRY ATMOSPHERE |
spellingShingle |
Science & Technology Physical Sciences Meteorology & Atmospheric Sciences LIMB EMISSION-SPECTRA GEOPHYSICAL VALIDATION LOWER STRATOSPHERE HYDROGEN RADICALS CARBON-MONOXIDE ODD-HYDROGEN INSTRUMENT ENVISAT PHOTOCHEMISTRY ATMOSPHERE Moore, D.P. Remedios, J.J. Waterfall, A.M. Global distributions of acetone in the upper troposphere from MIPAS spectra |
topic_facet |
Science & Technology Physical Sciences Meteorology & Atmospheric Sciences LIMB EMISSION-SPECTRA GEOPHYSICAL VALIDATION LOWER STRATOSPHERE HYDROGEN RADICALS CARBON-MONOXIDE ODD-HYDROGEN INSTRUMENT ENVISAT PHOTOCHEMISTRY ATMOSPHERE |
description |
This study reports the first global measurements of acetone (C[subscript 3]H[subscript 6]O) in the upper troposphere (UT). Profiles were obtained between 9 km and 15 km from measurements made by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard Envisat in August 2003. Errors per profile are lower than 40 % between 180 hPa and 350 hPa. We report strong hemispheric differences in the acetone volume mixing ratios (VMRs), with average concentrations highest in the Northern Hemisphere (NH) mid-latitude UT, between 1000 pptv and 1600 pptv with maxima up to 2300 pptv. Our results show a strong enhancement of acetone relative to CO, particularly over Europe (7 pptv ppbv[superscript −1]), confirming aircraft studies. Ten-day backward trajectories from these high European values show strong contributions from air flows over North America (56 %) and 25 % from Southernmost Asia. Enhanced acetone is also observed over Greenland, Siberia and biomass burning regions of Africa. Zonal distributions show that acetone VMRs decrease rapidly with increasing altitude (decreasing pressure), particularly in the NH. Poleward of 45° S, acetone VMRs remain fairly consistent with average VMRs between 400 pptv and 500 pptv. In 5-day averages at 9 km, NH VMRs poleward of 45° N are consistently higher than Southern Hemisphere observations poleward of 45° S, by between 750 pptv and 1100 pptv. The results show a clear influence of mid-latitude and transport processes on the acetone summertime distribution. Peer-reviewed Publisher Version |
format |
Article in Journal/Newspaper |
author |
Moore, D.P. Remedios, J.J. Waterfall, A.M. |
author_facet |
Moore, D.P. Remedios, J.J. Waterfall, A.M. |
author_sort |
Moore, D.P. |
title |
Global distributions of acetone in the upper troposphere from MIPAS spectra |
title_short |
Global distributions of acetone in the upper troposphere from MIPAS spectra |
title_full |
Global distributions of acetone in the upper troposphere from MIPAS spectra |
title_fullStr |
Global distributions of acetone in the upper troposphere from MIPAS spectra |
title_full_unstemmed |
Global distributions of acetone in the upper troposphere from MIPAS spectra |
title_sort |
global distributions of acetone in the upper troposphere from mipas spectra |
publisher |
Copernicus GmbH (Copernicus Publications) on behalf of the European Geosciences Union (EGU). |
publishDate |
2013 |
url |
http://www.atmos-chem-phys.net/12/757/2012/acp-12-757-2012.html http://hdl.handle.net/2381/28279 https://doi.org/10.5194/acp-12-757-2012 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Siberia |
genre_facet |
Greenland Siberia |
op_relation |
Atmospheric Chemistry and Physics, 2012, 12 (2), pp. 757-768 (12) 1680-7316 http://www.atmos-chem-phys.net/12/757/2012/acp-12-757-2012.html http://hdl.handle.net/2381/28279 doi:10.5194/acp-12-757-2012 1680-7324 |
op_rights |
© Author(s) 2012. This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-12-757-2012 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
12 |
container_issue |
2 |
container_start_page |
757 |
op_container_end_page |
768 |
_version_ |
1766019615188582400 |