Surface pressure pattern indicators of mean monthly pollutant concentrations in southern Scandinavian precipitation: A test using case studies of months with high and low concentrations of non-marine sulphate and nitrate

Davies, Trevor; Farmer, G. Thomas; Kelly, PM; Glover, G. M.; ApSimon, Helen; Barthelmie, R.J.

doi:10.1016/0960-1686(92)90308-8

Cited by 7 publications

(9 citation statements)

References 12 publications

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“…For O 3 , the winter surface MSLP composite map shows a meridional pressure gradient, with high pressure located just west of Ireland, and a low-pressure system positioned over North-Eastern Europe. This implies a strong northerly circulation that is consistent with previous results of a strong correlation between high O 3 levels and strong winds in winter (Davies et al, 1992b). The anomaly maps show an enhanced positive pressure anomaly south of Iceland, and a negative anomaly east of Cabauw.…”

Section: Circulation-to-environment Approachsupporting

confidence: 79%

“…For DJF, highest concentrations can be observed in the C (Cyclonic), N, W and NW WTs. Davies et al (1992b) obtained similar dependence for ozone with N, NW and W weather patterns in Cabauw. It is noticed that some of the latter are related to strong winds and tropopause folding mechanisms whereby ozone can be transported from the lower troposphere (Delcloo and De Backer, 2008).…”

Section: Circulation-to-environment Approachsupporting

confidence: 56%

“…Using the circulation patterns for ozone in winter reveals the highest average concentration in wind direction from W to N, under high wind speed circumstances. This feature suggests the influence of ozone transported from the free troposphere towards the surface, which was also suggested by Davies et al (1992b) and Delcloo and De Backer (2008). For PM 10 , high levels are largely controlled by air advected from the south to east.…”

Section: Discussionmentioning

confidence: 71%

“…These patterns also suggest strong winds and high frequencies of troughs or even cut-off lows in the vicinity of the observation station, which suggests transport of air mass from the upper troposphere (low troposphere) to the surface (Delcloo and De Backer, 2008). This could explain the higher concentrations associated with these patterns, as in non-summer months there is less opportunity for photochemical production of ozone in the boundary layer (Davies et al, 1992b). The spring MSLP maps show the Azores high pressure system extending far towards the northeast and a low located over Italy.…”

Section: Circulation-to-environment Approachmentioning

confidence: 98%

“…Comrie and Yarnal, 1992;Davies et al, 1992b;Kalkstein et al, 1996;Cheng and Lam, 2000;Ainslie and Styen, 2007). This discrepancy could be due to multiple reasons.…”

Section: Circulation-to-environment Approachmentioning

confidence: 99%

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The impact of weather and atmospheric circulation on O3 and PM10 levels at a rural mid-latitude site

et al. 2009

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Abstract. In spite of the strict EU regulations, concentrations of surface ozone and PM 10 often exceed the pollution standards for the Netherlands and Europe. Their concentrations are controlled by (precursor) emissions, social and economic developments and a complex combination of meteorological actors. This study tackles the latter, and provides insight in the meteorological processes that play a role in O 3 and PM 10 levels in rural mid-latitudes sites in the Netherlands. The relations between meteorological actors and air quality are studied on a local scale based on observations from four rural sites and are determined by a comprehensive correlation analysis and a multiple regression (MLR) analysis in 2 modes, with and without air quality variables as predictors. Furthermore, the objective Lamb Weather Type approach is used to assess the influence of the large-scale circulation on air quality. Keeping in mind its future use in downscaling future climate scenarios for air quality purposes, special emphasis is given to an appropriate selection of the regressor variables readily available from operational meteorological forecasts or AOGCMs (Atmosphere-Ocean coupled General Circulation Models). The regression models perform satisfactory, especially for O 3 , with an R 2 of 57.0% and 25.0% for PM 10 . Including previous day air quality information increases significantly the models performance by 15% (O 3 ) and 18% (PM 10 ). The Lamb weather types show a seasonal distinct pattern for high (low) episodes of average O 3 and PM 10 concentrations, and these are clear related with the meteorology-air quality correlation analysis. Although using Correspondence to: M. Demuzere (matthias.demuzere@ees.kuleuven.be) a circulation type approach can provide important additional physical relations forward, our analysis reveals the circulation method is limited in terms of short-term air quality forecast for both O 3 and PM 10 (R 2 between 0.12 and 23%). In summary, it is concluded that the use of a regression model is more promising for short-term downscaling from climate scenarios than the use of a weather type classification approach.

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Section: Circulation-to-environment Approachsupporting

confidence: 79%

Section: Circulation-to-environment Approachsupporting

confidence: 56%

Section: Discussionmentioning

confidence: 71%

Section: Circulation-to-environment Approachmentioning

confidence: 98%

“…Comrie and Yarnal, 1992;Davies et al, 1992b;Kalkstein et al, 1996;Cheng and Lam, 2000;Ainslie and Styen, 2007). This discrepancy could be due to multiple reasons.…”

Section: Circulation-to-environment Approachmentioning

confidence: 99%

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The impact of weather and atmospheric circulation on O3 and PM10 levels at a rural mid-latitude site

et al. 2009

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The meteorological control on the anthropogenic ion content of precipitation at three sites in the UK: The utility of lamb weather types

Davies

Dorling

Pierce

et al. 1991

Intl Journal of Climatology

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Daily observations of concentrations of non-marine sulphate, nitrate, ammonium, and hydrogen ion in precipitation at three sites in the UK (south-west England, eastern England, southern Scotland) have been used to attribute proportions of the total annual depositions of these. ions to various Lamb Weather Types (LWTs). The LWT classification is a convenient description of the daily atmospheric circulation over the British Isles. In terms of affecting the annual character of total annual deposition of the ions, it is Cyclonic, Westerly, and Anticyclonic weather types that play the dominant roles. These roles vary from station to station. Other LWTs can also play important roles, but there is much site-to-site and year-toyear variation. The patterns of the relationships for each of the stations are explained in terms of the 'average' backtrajectories from each station for precipitation events associated with each of the major LWTs. It is the relative dispositions of these average trajectories with respect to the major pollutant source regions that allows the use of LWTs as simple tools in the interpretation of precipitation composition. There are indications that atmospheric circulation changes may play a part in the variations of precipitation composition over years to decades.

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Towards an assessment of the influence of climate on wet acidic deposition in Europe

Davies

Pierce

Robinson

et al. 1992

Environmental Pollution

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Surface pressure pattern indicators of mean monthly pollutant concentrations in southern Scandinavian precipitation: A test using case studies of months with high and low concentrations of non-marine sulphate and nitrate

Cited by 7 publications

References 12 publications

The impact of weather and atmospheric circulation on O<sub>3</sub> and PM<sub>10</sub> levels at a rural mid-latitude site

The impact of weather and atmospheric circulation on O<sub>3</sub> and PM<sub>10</sub> levels at a rural mid-latitude site

The meteorological control on the anthropogenic ion content of precipitation at three sites in the UK: The utility of lamb weather types

Towards an assessment of the influence of climate on wet acidic deposition in Europe

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Surface pressure pattern indicators of mean monthly pollutant concentrations in southern Scandinavian precipitation: A test using case studies of months with high and low concentrations of non-marine sulphate and nitrate

Cited by 7 publications

References 12 publications

The impact of weather and atmospheric circulation on O&lt;sub&gt;3&lt;/sub&gt; and PM&lt;sub&gt;10&lt;/sub&gt; levels at a rural mid-latitude site

The impact of weather and atmospheric circulation on O&lt;sub&gt;3&lt;/sub&gt; and PM&lt;sub&gt;10&lt;/sub&gt; levels at a rural mid-latitude site

The meteorological control on the anthropogenic ion content of precipitation at three sites in the UK: The utility of lamb weather types

Towards an assessment of the influence of climate on wet acidic deposition in Europe

Contact Info

Product

Resources

About

The impact of weather and atmospheric circulation on O<sub>3</sub> and PM<sub>10</sub> levels at a rural mid-latitude site

The impact of weather and atmospheric circulation on O<sub>3</sub> and PM<sub>10</sub> levels at a rural mid-latitude site