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

Ogawa, T.; Miyata, Atsuhiko

doi:10.2151/jmsj1965.63.5_937

Cited by 28 publications

(14 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 20 ppbv 03 contour, where the gradient in 03 is largest, can be considered as approximately defining the boundary between the two different air masses. The observed latitudinal variation of ozone is consistent with the analysis of the ozonesonde data from three stations in Japan, Kagoshima (31.5" N), Tateno (36.1"N), and Sapporo (43.1" N) (Figure 1) by Logan (1985) and Ogawa and Miyata (1985). Their analyses indicate that ozone at these stations systematically decreases from north to south in summer.…”

supporting

confidence: 84%

“…Their analyses indicate that ozone at these stations systematically decreases from north to south in summer. The ozone concentration at Kagoshima was found to be considerably lower in summer than in the other seasons with the average concentration in July below 3 km ranging from 10 to 20 ppbv, depending on the altitude (Ogawa and Miyata, 1985).…”

mentioning

confidence: 89%

“…The effect of this inflow has been observed in part in the form of the summer minimum in tropospheric ozone over southern Japan (Logan, 1985;Ogawa and Miyata, 1985). Up until now no detailed study of the chemical composition of this part of the atmosphere in this season has been performed.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tropospheric ozone and oxides of nitrogen over the north-western Pacific in summer

Kondo¹,

Muramatsu²,

Matthews³

et al. 1988

J Atmos Chem

View full text Add to dashboard Cite

In summer, atmospheric ozone was measured from an aircraft platform simultaneously with nitric oxide (NO), oxides of nitrogen (NOy), and water vapor over the Pacific Ocean in east Asia from 34*N to 19*N along the longitude of 138___ 3 ° E. NOy was measured with the aid of a ferrous sulfate converter. The altitude covered was from 0.5 to 5 km. A good correlation in the smoothed meridional distributions between ozone and NOy was seen. In particular, north of 25 ° N, ozone and NOy mixing ratios were considerably higher than those observed in tropical marine air south of 25* N. NOv and 03 reached a minimum of 50 pptv and 4 ppbv respectively in the boundary layer at a latitude of 20 ° N. The NO concentration between 2 and 5 km at the same latitude was 30 pptv. The profiles of ozone and water vapor mixing ratios were highly anti-correlated between 25 ° N and 20 ° N. In contrast, it was much poorer at the latitude of 33 ° N, suggesting a net photochemical production of ozone there.

show abstract

supporting

confidence: 84%

mentioning

confidence: 89%

See 1 more Smart Citation

Tropospheric ozone and oxides of nitrogen over the north-western Pacific in summer

Kondo¹,

Muramatsu²,

Matthews³

et al. 1988

J Atmos Chem

View full text Add to dashboard Cite

show abstract

“…Most surface ozone measurement in the northern hemisphere show a spring maximum [Singh et al, 1978;Ogawa and Miyata, 1985;Logan, 1994]. The roles of photochemical production from anthropogenic emissions of precursors and intrusion of stratospheric air with high concentrations of ozone in producing these springtime maxima remain to be quantified.…”

Section: Introductionmentioning

confidence: 99%

Tropospheric ozone production and transport in the springtime in east Asia

Carmichael¹,

Uno²,

Phadnis³

et al. 1998

J. Geophys. Res.

131

View full text Add to dashboard Cite

“…Symbols: +Oltmans and Komhyr (1986); O Schmidt 0985); ×Logan (1986); V llyas (1985);• Ogawa and Miyata (1985);O Martin and Barber (1984); [] HohenpeiBenberg (DWD); • Quickborn (MOH); A Georg-von-Neumayer-Station (own measurements[1982][1983][1984][1985]. Continuous line: oceanic measurements as inFigure 2; dashed line: most probable distribution after replenishing the yearly cycle in the different latitudes.…”

mentioning

confidence: 99%

Surface ozone over the Atlantic ocean

Winkler

1988

J Atmos Chem

View full text Add to dashboard Cite

During the past decade (1977)(1978)(1979)(1980)(1981)(1982)(1983)(1984)(1985)(1986) ozone has been measured on board various research vessels between 83°N and 76 ° S. The latitudinal distribution shows nearly twice as high an ozone concentration in the Northern Hemisphere (30 ppb) as compared to the Southern Hemisphere (15 ppb). North of 70"N the concentration rapidly drops to low values (17 ppb). In the ITCZ we frequently observed a pronounced secondary maximum which indicates that tropospheric-stratospheric exchange may be induced by deep convection. During other occasions, ozone concentrations below 10 ppb were observed in the ITCZ. Secondary maxima are also found in each hemisphere, indicating the latitudes in which stratospheric-tropospheric exchange occurs. One such pronounced maximum is found between 60 and 65 ° N. A comparable counterpart does not, however, occur in the respective southern latitudes.The observations, although incomplete, allow for conclusions with respect to seasonal cycles, at least in some of the latitudes or for some part of the year. In the tropics differences between continental and maritime yearly cycles are found. In mid to high northern latitudes, a sharp maximum is found which extends to the summer months over continental European sites. In the respective southern latitudes, such a spring maximum is only indicated.Comparison with occasionally concurrent Kr 85 measurements by other groups allows for the conclusion that in some cases photochemically produced ozone in polluted air masses is seen over the Atlantic ocean.

show abstract

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

Abstract: The data from several rural stations

Cited by 28 publications

References 14 publications

Tropospheric ozone and oxides of nitrogen over the north-western Pacific in summer

Tropospheric ozone and oxides of nitrogen over the north-western Pacific in summer

Tropospheric ozone production and transport in the springtime in east Asia

Surface ozone over the Atlantic ocean

Contact Info

Product

Resources

About