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Inter-annual variations of ozone and nitrogen dioxide over Europe during 1958-2003 simulated with a regional CTM
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för tillämpad miljövetenskap (ITM).
2007 (Engelska)Ingår i: Water, Air and Soil Pollution, ISSN 0049-6979, E-ISSN 1573-2932, Vol. 7, s. 15-23Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Abstract Inter-annual variability of surface ozone(O3) and nitrogen dioxide (NO2) over Europe hasbeen studied over the period 1958-2003 using athree-dimensional Chemistry-Transport Model coupledto meteorological data from the ERA40 data setproduced at the European Centre of Medium-rangeWeather Forecasts (ECMWF). Emissions and boundaryconditions were kept at present levels throughoutthe simulation period. It was found that the annualmean NO2 concentration varies between ±50% andthe summer mean O3 concentration varies between-10 and +20 percent (%) compared to the 46-yearaverage over the model domain. There is alsovariation in ozone and NO2 over longer time scales.The last 22 years display high concentrations ofozone in central and south-western Europe and lowconcentrations in north-eastern Europe. The first22 years display very high concentrations of NO2over the North Sea. There is indication of trends inozone and nitrogen dioxide but this has to beinvestigated further. Such information is one factorthat should be taken into account when consideringfuture control strategies.

Ort, förlag, år, upplaga, sidor
Netherlands: Springer , 2007. Vol. 7, s. 15-23
Nyckelord [en]
air pollution, MATCH, meteorological variability, policy, simulation
Nationell ämneskategori
Naturvetenskap Meteorologi och atmosfärforskning Meteorologi och atmosfärforskning
Forskningsämne
tillämpad miljövetenskap
Identifikatorer
URN: urn:nbn:se:su:diva-25944DOI: 10.1007/s11267-006-9088-4OAI: oai:DiVA.org:su-25944DiVA, id: diva2:201005
Tillgänglig från: 2009-03-02 Skapad: 2009-03-02 Senast uppdaterad: 2017-12-13Bibliografiskt granskad
Ingår i avhandling
1. Air Pollution Dependency on Climate Variability and Source Region: Past, Current and Future Air Pollution Scenarios over Europe
Öppna denna publikation i ny flik eller fönster >>Air Pollution Dependency on Climate Variability and Source Region: Past, Current and Future Air Pollution Scenarios over Europe
2009 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

The main objectives of this thesis were to investigate the dependency of European air pollution on climate variability and emission source region. Calculations with a chemistry transport model (CTM) were conducted to investigate the influence of climate variability. The CTM was forced by both simulated past (a re-analysis spanning 1958-2001) and future (a climate simulation spanning 1961-2100) meteorology keeping anthropogenic emissions constant. To investigate the influence of emission source region emissions were varied in western, eastern and northern Europe in seven-year (1997-2003) simulations.

The main conclusions in this thesis are

§         There is variability in air pollution due to climate variability on time scales from year to year to decades and long-term trends. Hence, what is measured now will not be valid in a decade, or even next year.

§         Interannual variability in air pollution due to climate variability is greater than interannual variability in anthropogenic emissions.

§         The extreme conditions in 2003, resulting in elevated surface O3 concentrations, could be an indication on what we can expect in the future.

§         The trend in surface O3 over the past due to climate change is similar to the projected trend due to future climate change: increasing in south-western and central Europe and decreasing in north-eastern Europe.

§         Changes in isoprene emissions and dry deposition dependency on soil moisture are of importance for changes in surface O3 in central and southern Europe. It is vital to include these processes, especially the latter in climate change effect studies of surface O3.

§         This work indicates that it is of greater importance for health benefits of the European population to reduce primary PM emissions than precursors of secondary inorganic aerosol under the assumption of higher relative risk for primary PM. This is especially the case in western Europe.

Ort, förlag, år, upplaga, sidor
Stockholm: Department of Applied Environmental Science (ITM), Stockholm University, 2009. s. 55
Nyckelord
Acidification, Air Pollution, Climate Change, Europe, Numerical Model, Emission, Eutrophication, Key region, Nitrogen Dioxide, Particulate Matter, PM, Source region, Surface Ozone, Tropospheric Ozone
Nationell ämneskategori
Geovetenskap och miljövetenskap
Forskningsämne
tillämpad miljövetenskap
Identifikatorer
urn:nbn:se:su:diva-25947 (URN)978-91-7155-828-2 (ISBN)
Disputation
2009-04-03, William Olssonsalen, Svante Arrhenius väg 8A, Geovetenskapens hus, 13:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2009-03-12 Skapad: 2009-03-02 Senast uppdaterad: 2009-03-23Bibliografiskt granskad

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Andersson, Camilla
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Institutionen för tillämpad miljövetenskap (ITM)
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Water, Air and Soil Pollution
NaturvetenskapMeteorologi och atmosfärforskningMeteorologi och atmosfärforskning

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