Tropospheric ozone: Concentrations and variabilities in clean remote atmospheres

Singh, H. B.; Ludwig, F. L.; Johnson, Warren B.

doi:10.1016/0004-6981(78)90174-9

Cited by 151 publications

(73 citation statements)

References 3 publications

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“…in California), two sites suggested by Oltmans et al (2006Oltmans et al ( , 2008 (Olympic N.P in Washington and Channel Islands N.P. in California) and Quillayute, Washington where some very early measurements were made (Singh et al, 1978). Also included in Table 1 and Fig.…”

Section: Available North American Marine Boundary Layer Data Setsmentioning

confidence: 99%

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Increasing ozone in marine boundary layer inflow at the west coasts of North America and Europe

2009

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Abstract. An effective method is presented for determining the ozone (O 3 ) mixing ratio in the onshore flow of marine air at the North American west coast. By combining the data available from all marine boundary layer (MBL) sites with simultaneous wind data, decadal temporal trends of MBL O 3 in all seasons are established with high precision. The average springtime temporal trend over the past two decades is 0.46 ppbv/yr with a 95% confidence limit of 0.13 ppbv/yr, and statistically significant trends are found for all seasons except autumn, which does have a significantly smaller trend than other seasons. The average trend in mean annual ozone is 0.34±0.09 ppbv/yr. These decadal trends at the North American west coast present a striking comparison and contrast with the trends reported for the European west coast at Mace Head, Ireland. The trends in the winter, spring and summer seasons compare well at the two locations, while the Mace Head trend is significantly greater in autumn. Even though the trends are similar, the absolute O 3 mixing ratios differ markedly, with the marine air arriving at Europe in all seasons containing 7±2 ppbv higher ozone than marine air arriving at North America. Further, the ozone mixing ratios at the North American west coast show no indication of stabilizing as has been reported for Mace Head. In a larger historical context the background boundary layer O 3 mixing ratios over the 130 years covered by available data have increased substantially (by a factor of two to three), and this increase continues at present, at least in the MBL of the Pacific coast region of North America. The reproduction of the increasing trends in MBL O 3 over the past two decades, as well as the difference in the O 3 mixing ratios between the Correspondence to: D. D. Parrish (david.d.parrish@noaa.gov) two coastal regions will present a significant challenge for global chemical transport models. Further, the ability of the models to at least semi-quantitatively reproduce the longerterm, historical trends may an even greater challenge.

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Section: Available North American Marine Boundary Layer Data Setsmentioning

confidence: 99%

“…The earliest available data were collected at Quillayute, Washington in 1974-1975(Singh et al, 1978. If these data were reliable it would be desirable to include them in the trend analysis to extend the time period covered by available data.…”

Section: Data Available From Other Sitesmentioning

confidence: 99%

Increasing ozone in marine boundary layer inflow at the west coasts of North America and Europe

2009

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“…The spring maximum is a common feature in the mid-latitude troposphere, and is interpreted in terms of ozone transport from the stratosphere (e. g., Junge, 1962;Singh et al, 1978).…”

Section: Seasonal Behaviormentioning

confidence: 99%

“…Some characteristic behaviors of the tropospheric ozone, with respect to diurnal, seasonal and latitudinal variations and temporal variations associated with day-to-day weather conditions, have been studied mainly by using the data from North America and Europe (e. g., Chatfield and Harrison, 1977;Fabian and Pruchniewicz, 1977;Singh et al, 1978;Oltmans, 1981).…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variation of the Tropospheric Ozone : A Summer Minimum in Japan

Ogawa

Miyata

1985

Journal of the Meteorological Society of Japan

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“…11 Subsequent observations of background O 3 were higher, with reported maximum concentrations of 0.08 ppm, representative of O 3 from non-local natural and anthropogenic sources. 12,13 Contemporary reports of background concentrations vary ( 7 Background concentrations in the eastern Atlantic were similar to those in southwestern Europe, with measured values between 0.05 and 0.07 ppm. 14 A study in Taiwan measured background O 3 concentrations between 0.078 and 0.086 ppm in a layer between 600 and 900 m above ground level.…”

Section: Discussionmentioning

confidence: 71%

The Impact of Background Ozone on Compliance with Revised National Ambient Air Quality Standards

Williams

Potter

Clarkson

et al. 2009

Journal of the Air & Waste Management Association

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Tropospheric ozone: Concentrations and variabilities in clean remote atmospheres

Cited by 151 publications

References 3 publications

Increasing ozone in marine boundary layer inflow at the west coasts of North America and Europe

Increasing ozone in marine boundary layer inflow at the west coasts of North America and Europe

Seasonal Variation of the Tropospheric Ozone : A Summer Minimum in Japan

The Impact of Background Ozone on Compliance with Revised National Ambient Air Quality Standards

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