The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources
International audience The effect of present-day and future NO x emissions from aircraft on the NO x and ozone concentrations in the atmosphere and the corresponding radiative forcing were studied using a three-dimensional chemistry transport model (CTM) and a radiative model. The effects of the air...
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ftccsdartic:oai:HAL:hal-00316643v1 2023-11-12T04:22:54+01:00 The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources Valks, P. J. M. Velders, G. J. M. National Institute for Public Health and the Environment Bilthoven (RIVM) 1999 https://hal.science/hal-00316643 https://hal.science/hal-00316643/document https://hal.science/hal-00316643/file/angeo-17-1064-1999.pdf en eng HAL CCSD European Geosciences Union hal-00316643 https://hal.science/hal-00316643 https://hal.science/hal-00316643/document https://hal.science/hal-00316643/file/angeo-17-1064-1999.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316643 Annales Geophysicae, 1999, 17 (8), pp.1064-1079 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 1999 ftccsdartic 2023-10-21T23:08:17Z International audience The effect of present-day and future NO x emissions from aircraft on the NO x and ozone concentrations in the atmosphere and the corresponding radiative forcing were studied using a three-dimensional chemistry transport model (CTM) and a radiative model. The effects of the aircraft emissions were compared with the effects of the three most important anthropogenic NO x surface sources: road traffic, electricity generation and industrial combustion. From the model results, NO x emissions from aircraft are seen to cause an increase in the NO x and ozone concentrations in the upper troposphere and lower stratosphere, and a positive radiative forcing. For the reference year 1990, the aircraft emissions result in an increase in the NO x concentration at 250 hPa of about 20 ppt in January and 50 ppt in July over the eastern USA, the North Atlantic Flight Corridor and Western Europe, corresponding to a relative increase of about 50%. The maximum increase in the ozone concentrations due to the aircraft emissions is about 3-4 ppb in July over the northern mid-latitudes, corresponding to a relative increase of about 3-4%. The aircraft-induced ozone changes cause a global average radiative forcing of 0.025 W/m 2 in July. According to the ANCAT projection for the year 2015, the aircraft NO x emissions in that year will be 90% higher than in the year 1990. As a consequence of this, the calculated NO x perturbation by aircraft emissions increases by about 90% between 1990 and 2015, and the ozone perturbation by about 50-70%. The global average radiative forcing due to the aircraft-induced ozone changes increases by about 50% between 1990 and 2015. In the year 2015, the effects of the aircraft emissions on the ozone burden and radiative forcing are clearly larger than the individual effects of the NO x surface sources. Taking chemical conversion in the aircraft plume into account in the CTM explicitly, by means of modified aircraft NO x emissions, a significant reduction of the aircraft-induced NO x and ... Article in Journal/Newspaper North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Valks, P. J. M. Velders, G. J. M. The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The effect of present-day and future NO x emissions from aircraft on the NO x and ozone concentrations in the atmosphere and the corresponding radiative forcing were studied using a three-dimensional chemistry transport model (CTM) and a radiative model. The effects of the aircraft emissions were compared with the effects of the three most important anthropogenic NO x surface sources: road traffic, electricity generation and industrial combustion. From the model results, NO x emissions from aircraft are seen to cause an increase in the NO x and ozone concentrations in the upper troposphere and lower stratosphere, and a positive radiative forcing. For the reference year 1990, the aircraft emissions result in an increase in the NO x concentration at 250 hPa of about 20 ppt in January and 50 ppt in July over the eastern USA, the North Atlantic Flight Corridor and Western Europe, corresponding to a relative increase of about 50%. The maximum increase in the ozone concentrations due to the aircraft emissions is about 3-4 ppb in July over the northern mid-latitudes, corresponding to a relative increase of about 3-4%. The aircraft-induced ozone changes cause a global average radiative forcing of 0.025 W/m 2 in July. According to the ANCAT projection for the year 2015, the aircraft NO x emissions in that year will be 90% higher than in the year 1990. As a consequence of this, the calculated NO x perturbation by aircraft emissions increases by about 90% between 1990 and 2015, and the ozone perturbation by about 50-70%. The global average radiative forcing due to the aircraft-induced ozone changes increases by about 50% between 1990 and 2015. In the year 2015, the effects of the aircraft emissions on the ozone burden and radiative forcing are clearly larger than the individual effects of the NO x surface sources. Taking chemical conversion in the aircraft plume into account in the CTM explicitly, by means of modified aircraft NO x emissions, a significant reduction of the aircraft-induced NO x and ... |
author2 |
National Institute for Public Health and the Environment Bilthoven (RIVM) |
format |
Article in Journal/Newspaper |
author |
Valks, P. J. M. Velders, G. J. M. |
author_facet |
Valks, P. J. M. Velders, G. J. M. |
author_sort |
Valks, P. J. M. |
title |
The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources |
title_short |
The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources |
title_full |
The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources |
title_fullStr |
The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources |
title_full_unstemmed |
The present-day and future impact of NO x emissions from subsonic aircraft on the atmosphere in relation to the impact of NO x surface sources |
title_sort |
present-day and future impact of no x emissions from subsonic aircraft on the atmosphere in relation to the impact of no x surface sources |
publisher |
HAL CCSD |
publishDate |
1999 |
url |
https://hal.science/hal-00316643 https://hal.science/hal-00316643/document https://hal.science/hal-00316643/file/angeo-17-1064-1999.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316643 Annales Geophysicae, 1999, 17 (8), pp.1064-1079 |
op_relation |
hal-00316643 https://hal.science/hal-00316643 https://hal.science/hal-00316643/document https://hal.science/hal-00316643/file/angeo-17-1064-1999.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782337838006665216 |