Alkyl nitrates in outflow from North America over the North Atlantic during Intercontinental Transport of Ozone and Precursors 2004

Claire E. Reeves, Jana Slemr, David E. Oram, David Worton, Stuart A. Penkett, David J. Stewart, Ruth Purvis, Nicola Watson, Jim Hopkins, Ally Lewis, John Methven, Donald R. Blake, Elliot L Atlas

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This paper is based on alkyl nitrate measurements made over the North Atlantic as part of the International Consortium for Research on Atmospheric Transport and Transformation (ICARTT). The focus is on the analysis of air samples collected on the UK BAe-146 aircraft during the Intercontinental Transport of Ozone and Precursors (ITOP) project, but air samples collected on board the NASA DC-8 and NOAA WP-3D aircraft as part of a Lagrangian experiment are also used. The ratios between the alkyl nitrates and their parent hydrocarbons are compared with those expected from chemical theory. Further, a box model is run to investigate the temporal evolution of the alkyl. nitrates in three Lagrangian case studies and compared to observations. The air samples collected during ITOP do not appear to be strongly influenced by oceanic sources, but rather are influenced by emissions from the N.E. United States and from Alaskan fires. There also appears to be a widespread common source of ethyl nitrate and 1-propyl nitrate other than from their parent hydrocarbons. The general agreement between the alkyl nitrate data and photochemical theory suggests that during the first few days of transport from the source region, photochemical production of alkyl nitrates, and thus ozone, had taken place. The observations in the more photochemically processed air masses are consistent with the alkyl nitrate production reactions no longer dominating the peroxy radical self/cross reactions. Further, the results also suggest that the rates of photochemical processing in the Alaskan smoke plumes were small.

Original languageEnglish (US)
Article numberD10S37
JournalJournal of Geophysical Research C: Oceans
Volume112
Issue number10
DOIs
StatePublished - May 27 2007

Fingerprint

Ozone
Nitrates
ozone
nitrates
outflow
nitrate
Hydrocarbons
Air
propyl nitrate
aircraft
Aircraft
air
hydrocarbons
hydrocarbon
peroxy radical
air masses
Smoke
smoke
NASA
North America

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Atmospheric Science
  • Astronomy and Astrophysics
  • Oceanography

Cite this

Alkyl nitrates in outflow from North America over the North Atlantic during Intercontinental Transport of Ozone and Precursors 2004. / Reeves, Claire E.; Slemr, Jana; Oram, David E.; Worton, David; Penkett, Stuart A.; Stewart, David J.; Purvis, Ruth; Watson, Nicola; Hopkins, Jim; Lewis, Ally; Methven, John; Blake, Donald R.; Atlas, Elliot L.

In: Journal of Geophysical Research C: Oceans, Vol. 112, No. 10, D10S37, 27.05.2007.

Research output: Contribution to journalArticle

Reeves, CE, Slemr, J, Oram, DE, Worton, D, Penkett, SA, Stewart, DJ, Purvis, R, Watson, N, Hopkins, J, Lewis, A, Methven, J, Blake, DR & Atlas, EL 2007, 'Alkyl nitrates in outflow from North America over the North Atlantic during Intercontinental Transport of Ozone and Precursors 2004', Journal of Geophysical Research C: Oceans, vol. 112, no. 10, D10S37. https://doi.org/10.1029/2006JD007567
Reeves, Claire E. ; Slemr, Jana ; Oram, David E. ; Worton, David ; Penkett, Stuart A. ; Stewart, David J. ; Purvis, Ruth ; Watson, Nicola ; Hopkins, Jim ; Lewis, Ally ; Methven, John ; Blake, Donald R. ; Atlas, Elliot L. / Alkyl nitrates in outflow from North America over the North Atlantic during Intercontinental Transport of Ozone and Precursors 2004. In: Journal of Geophysical Research C: Oceans. 2007 ; Vol. 112, No. 10.
@article{ebfe3f8e4f6b4ec2bb350adfba1846df,
title = "Alkyl nitrates in outflow from North America over the North Atlantic during Intercontinental Transport of Ozone and Precursors 2004",
abstract = "This paper is based on alkyl nitrate measurements made over the North Atlantic as part of the International Consortium for Research on Atmospheric Transport and Transformation (ICARTT). The focus is on the analysis of air samples collected on the UK BAe-146 aircraft during the Intercontinental Transport of Ozone and Precursors (ITOP) project, but air samples collected on board the NASA DC-8 and NOAA WP-3D aircraft as part of a Lagrangian experiment are also used. The ratios between the alkyl nitrates and their parent hydrocarbons are compared with those expected from chemical theory. Further, a box model is run to investigate the temporal evolution of the alkyl. nitrates in three Lagrangian case studies and compared to observations. The air samples collected during ITOP do not appear to be strongly influenced by oceanic sources, but rather are influenced by emissions from the N.E. United States and from Alaskan fires. There also appears to be a widespread common source of ethyl nitrate and 1-propyl nitrate other than from their parent hydrocarbons. The general agreement between the alkyl nitrate data and photochemical theory suggests that during the first few days of transport from the source region, photochemical production of alkyl nitrates, and thus ozone, had taken place. The observations in the more photochemically processed air masses are consistent with the alkyl nitrate production reactions no longer dominating the peroxy radical self/cross reactions. Further, the results also suggest that the rates of photochemical processing in the Alaskan smoke plumes were small.",
author = "Reeves, {Claire E.} and Jana Slemr and Oram, {David E.} and David Worton and Penkett, {Stuart A.} and Stewart, {David J.} and Ruth Purvis and Nicola Watson and Jim Hopkins and Ally Lewis and John Methven and Blake, {Donald R.} and Atlas, {Elliot L}",
year = "2007",
month = "5",
day = "27",
doi = "10.1029/2006JD007567",
language = "English (US)",
volume = "112",
journal = "Journal of Geophysical Research: Oceans",
issn = "2169-9275",
publisher = "Wiley-Blackwell",
number = "10",

}

TY - JOUR

T1 - Alkyl nitrates in outflow from North America over the North Atlantic during Intercontinental Transport of Ozone and Precursors 2004

AU - Reeves, Claire E.

AU - Slemr, Jana

AU - Oram, David E.

AU - Worton, David

AU - Penkett, Stuart A.

AU - Stewart, David J.

AU - Purvis, Ruth

AU - Watson, Nicola

AU - Hopkins, Jim

AU - Lewis, Ally

AU - Methven, John

AU - Blake, Donald R.

AU - Atlas, Elliot L

PY - 2007/5/27

Y1 - 2007/5/27

N2 - This paper is based on alkyl nitrate measurements made over the North Atlantic as part of the International Consortium for Research on Atmospheric Transport and Transformation (ICARTT). The focus is on the analysis of air samples collected on the UK BAe-146 aircraft during the Intercontinental Transport of Ozone and Precursors (ITOP) project, but air samples collected on board the NASA DC-8 and NOAA WP-3D aircraft as part of a Lagrangian experiment are also used. The ratios between the alkyl nitrates and their parent hydrocarbons are compared with those expected from chemical theory. Further, a box model is run to investigate the temporal evolution of the alkyl. nitrates in three Lagrangian case studies and compared to observations. The air samples collected during ITOP do not appear to be strongly influenced by oceanic sources, but rather are influenced by emissions from the N.E. United States and from Alaskan fires. There also appears to be a widespread common source of ethyl nitrate and 1-propyl nitrate other than from their parent hydrocarbons. The general agreement between the alkyl nitrate data and photochemical theory suggests that during the first few days of transport from the source region, photochemical production of alkyl nitrates, and thus ozone, had taken place. The observations in the more photochemically processed air masses are consistent with the alkyl nitrate production reactions no longer dominating the peroxy radical self/cross reactions. Further, the results also suggest that the rates of photochemical processing in the Alaskan smoke plumes were small.

AB - This paper is based on alkyl nitrate measurements made over the North Atlantic as part of the International Consortium for Research on Atmospheric Transport and Transformation (ICARTT). The focus is on the analysis of air samples collected on the UK BAe-146 aircraft during the Intercontinental Transport of Ozone and Precursors (ITOP) project, but air samples collected on board the NASA DC-8 and NOAA WP-3D aircraft as part of a Lagrangian experiment are also used. The ratios between the alkyl nitrates and their parent hydrocarbons are compared with those expected from chemical theory. Further, a box model is run to investigate the temporal evolution of the alkyl. nitrates in three Lagrangian case studies and compared to observations. The air samples collected during ITOP do not appear to be strongly influenced by oceanic sources, but rather are influenced by emissions from the N.E. United States and from Alaskan fires. There also appears to be a widespread common source of ethyl nitrate and 1-propyl nitrate other than from their parent hydrocarbons. The general agreement between the alkyl nitrate data and photochemical theory suggests that during the first few days of transport from the source region, photochemical production of alkyl nitrates, and thus ozone, had taken place. The observations in the more photochemically processed air masses are consistent with the alkyl nitrate production reactions no longer dominating the peroxy radical self/cross reactions. Further, the results also suggest that the rates of photochemical processing in the Alaskan smoke plumes were small.

UR - http://www.scopus.com/inward/record.url?scp=34547592447&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547592447&partnerID=8YFLogxK

U2 - 10.1029/2006JD007567

DO - 10.1029/2006JD007567

M3 - Article

VL - 112

JO - Journal of Geophysical Research: Oceans

JF - Journal of Geophysical Research: Oceans

SN - 2169-9275

IS - 10

M1 - D10S37

ER -