Multi-site tropospheric ozone measurements across the North Tropical Atlantic during the summer of 2010

Gregory S. Jenkins, Miliaritiana L. Robjhon, Belay Demoz, William R. Stockwell, Seydi A. Ndiaye, Mamadou S. Drame, Moussa Gueye, Jonathan W. Smith, Yaitza Luna-Cruz, Johnathan Clark, Jalisa Holt, Casey Paulin, Ashley Brickhouse, Aneese Williams, Ajamu Abdullah, Ashford Reyes, Luis Mendes, Adriel Valentine, Moctar Camara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Ozone soundings are launched during two Intensive Observing Periods (IOPs) from Dakar, Senegal; Sao Vicente, Cape Verde; and St James, Barbados to investigate ozone variability across the North Tropical Atlantic during June/July and August/September 2010. Two objectives of the campaign are to compare background tropospheric ozone mixing ratios and its variability associated with the Saharan Air Layer (SAL) and African Easterly Waves (AEWs) at sites located in the Eastern and Western Tropical Atlantic Ocean. During IOP1 (June-July), reduced ozone mixing ratios are found in the SAL with elevated ozone levels at the SAL's base and above it. During IOP I, the tropospheric column ozone (TCO) is higher at Cape Verde (27.5 DU) when compared to Barbados (19.8 DU). During IOP II (August-September) ozone-rich air is found above 500 hPa prior to the passage of AEW or developing tropical cyclones. The observed larger mixing ratios of middle/upper tropospheric ozone are most prominent at Dakar prior to the passage of an AEW, which we attribute to lightning NOx. During IOP II the tropospheric column ozone is highest at Dakar (30.5 DU) when compared to Cape Verde (20.2 DU) and Barbados (17.2 DU).

Original languageEnglish (US)
Pages (from-to)131-148
Number of pages18
JournalAtmospheric Environment
Volume70
DOIs
StatePublished - May 1 2013

Fingerprint

ozone
easterly wave
summer
mixing ratio
air
tropospheric ozone
lightning
tropical cyclone
ocean

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Atmospheric Science

Cite this

Jenkins, Gregory S. ; Robjhon, Miliaritiana L. ; Demoz, Belay ; Stockwell, William R. ; Ndiaye, Seydi A. ; Drame, Mamadou S. ; Gueye, Moussa ; Smith, Jonathan W. ; Luna-Cruz, Yaitza ; Clark, Johnathan ; Holt, Jalisa ; Paulin, Casey ; Brickhouse, Ashley ; Williams, Aneese ; Abdullah, Ajamu ; Reyes, Ashford ; Mendes, Luis ; Valentine, Adriel ; Camara, Moctar. / Multi-site tropospheric ozone measurements across the North Tropical Atlantic during the summer of 2010. In: Atmospheric Environment. 2013 ; Vol. 70. pp. 131-148.
@article{356b5e85e07546f8a3612f2c2be6f588,
title = "Multi-site tropospheric ozone measurements across the North Tropical Atlantic during the summer of 2010",
abstract = "Ozone soundings are launched during two Intensive Observing Periods (IOPs) from Dakar, Senegal; Sao Vicente, Cape Verde; and St James, Barbados to investigate ozone variability across the North Tropical Atlantic during June/July and August/September 2010. Two objectives of the campaign are to compare background tropospheric ozone mixing ratios and its variability associated with the Saharan Air Layer (SAL) and African Easterly Waves (AEWs) at sites located in the Eastern and Western Tropical Atlantic Ocean. During IOP1 (June-July), reduced ozone mixing ratios are found in the SAL with elevated ozone levels at the SAL's base and above it. During IOP I, the tropospheric column ozone (TCO) is higher at Cape Verde (27.5 DU) when compared to Barbados (19.8 DU). During IOP II (August-September) ozone-rich air is found above 500 hPa prior to the passage of AEW or developing tropical cyclones. The observed larger mixing ratios of middle/upper tropospheric ozone are most prominent at Dakar prior to the passage of an AEW, which we attribute to lightning NOx. During IOP II the tropospheric column ozone is highest at Dakar (30.5 DU) when compared to Cape Verde (20.2 DU) and Barbados (17.2 DU).",
author = "Jenkins, {Gregory S.} and Robjhon, {Miliaritiana L.} and Belay Demoz and Stockwell, {William R.} and Ndiaye, {Seydi A.} and Drame, {Mamadou S.} and Moussa Gueye and Smith, {Jonathan W.} and Yaitza Luna-Cruz and Johnathan Clark and Jalisa Holt and Casey Paulin and Ashley Brickhouse and Aneese Williams and Ajamu Abdullah and Ashford Reyes and Luis Mendes and Adriel Valentine and Moctar Camara",
year = "2013",
month = "5",
day = "1",
doi = "10.1016/j.atmosenv.2012.12.019",
language = "English (US)",
volume = "70",
pages = "131--148",
journal = "Atmospheric Environment",
issn = "1352-2310",
publisher = "Elsevier Limited",

}

Jenkins, GS, Robjhon, ML, Demoz, B, Stockwell, WR, Ndiaye, SA, Drame, MS, Gueye, M, Smith, JW, Luna-Cruz, Y, Clark, J, Holt, J, Paulin, C, Brickhouse, A, Williams, A, Abdullah, A, Reyes, A, Mendes, L, Valentine, A & Camara, M 2013, 'Multi-site tropospheric ozone measurements across the North Tropical Atlantic during the summer of 2010', Atmospheric Environment, vol. 70, pp. 131-148. https://doi.org/10.1016/j.atmosenv.2012.12.019

Multi-site tropospheric ozone measurements across the North Tropical Atlantic during the summer of 2010. / Jenkins, Gregory S.; Robjhon, Miliaritiana L.; Demoz, Belay; Stockwell, William R.; Ndiaye, Seydi A.; Drame, Mamadou S.; Gueye, Moussa; Smith, Jonathan W.; Luna-Cruz, Yaitza; Clark, Johnathan; Holt, Jalisa; Paulin, Casey; Brickhouse, Ashley; Williams, Aneese; Abdullah, Ajamu; Reyes, Ashford; Mendes, Luis; Valentine, Adriel; Camara, Moctar.

In: Atmospheric Environment, Vol. 70, 01.05.2013, p. 131-148.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Multi-site tropospheric ozone measurements across the North Tropical Atlantic during the summer of 2010

AU - Jenkins, Gregory S.

AU - Robjhon, Miliaritiana L.

AU - Demoz, Belay

AU - Stockwell, William R.

AU - Ndiaye, Seydi A.

AU - Drame, Mamadou S.

AU - Gueye, Moussa

AU - Smith, Jonathan W.

AU - Luna-Cruz, Yaitza

AU - Clark, Johnathan

AU - Holt, Jalisa

AU - Paulin, Casey

AU - Brickhouse, Ashley

AU - Williams, Aneese

AU - Abdullah, Ajamu

AU - Reyes, Ashford

AU - Mendes, Luis

AU - Valentine, Adriel

AU - Camara, Moctar

PY - 2013/5/1

Y1 - 2013/5/1

N2 - Ozone soundings are launched during two Intensive Observing Periods (IOPs) from Dakar, Senegal; Sao Vicente, Cape Verde; and St James, Barbados to investigate ozone variability across the North Tropical Atlantic during June/July and August/September 2010. Two objectives of the campaign are to compare background tropospheric ozone mixing ratios and its variability associated with the Saharan Air Layer (SAL) and African Easterly Waves (AEWs) at sites located in the Eastern and Western Tropical Atlantic Ocean. During IOP1 (June-July), reduced ozone mixing ratios are found in the SAL with elevated ozone levels at the SAL's base and above it. During IOP I, the tropospheric column ozone (TCO) is higher at Cape Verde (27.5 DU) when compared to Barbados (19.8 DU). During IOP II (August-September) ozone-rich air is found above 500 hPa prior to the passage of AEW or developing tropical cyclones. The observed larger mixing ratios of middle/upper tropospheric ozone are most prominent at Dakar prior to the passage of an AEW, which we attribute to lightning NOx. During IOP II the tropospheric column ozone is highest at Dakar (30.5 DU) when compared to Cape Verde (20.2 DU) and Barbados (17.2 DU).

AB - Ozone soundings are launched during two Intensive Observing Periods (IOPs) from Dakar, Senegal; Sao Vicente, Cape Verde; and St James, Barbados to investigate ozone variability across the North Tropical Atlantic during June/July and August/September 2010. Two objectives of the campaign are to compare background tropospheric ozone mixing ratios and its variability associated with the Saharan Air Layer (SAL) and African Easterly Waves (AEWs) at sites located in the Eastern and Western Tropical Atlantic Ocean. During IOP1 (June-July), reduced ozone mixing ratios are found in the SAL with elevated ozone levels at the SAL's base and above it. During IOP I, the tropospheric column ozone (TCO) is higher at Cape Verde (27.5 DU) when compared to Barbados (19.8 DU). During IOP II (August-September) ozone-rich air is found above 500 hPa prior to the passage of AEW or developing tropical cyclones. The observed larger mixing ratios of middle/upper tropospheric ozone are most prominent at Dakar prior to the passage of an AEW, which we attribute to lightning NOx. During IOP II the tropospheric column ozone is highest at Dakar (30.5 DU) when compared to Cape Verde (20.2 DU) and Barbados (17.2 DU).

UR - http://www.scopus.com/inward/record.url?scp=84873490207&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84873490207&partnerID=8YFLogxK

U2 - 10.1016/j.atmosenv.2012.12.019

DO - 10.1016/j.atmosenv.2012.12.019

M3 - Article

VL - 70

SP - 131

EP - 148

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

ER -