Evaluation of Simulated Particulate Matter Spread in 2010 Russian Wildfire Case Using Air Quality Monitoring Data

Ketlin Reis*, Velle Toll, Riinu Ots, Marko Kaasik, Joana Soares, Mikhail Sofiev, Marje Prank, Aarne Maennik

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study is focused on a wild-land fire episode in 2010, August 7-9, when the plume of severe wildfires in European part of Russia reached Estonia and southern Finland, thus giving a chance to evaluate the modelling results against a relatively dense network of air quality monitoring stations. The chemistry-transport model SILAM, driven by the ECMWF meteo fields, was run within the European domain of AQMEII2 model validaton exercise with a 0.2-degree grid resolution, applying the AQMEII2 chemical and aerosol boundary conditions. The modelling results were compared with measured three-hourly average concentrations of PM2.5 in Estonia and Finland. The observed peak values in most of stations reached 60-80 mu g/m(3) (narrow peaks in the easternmost stations: up to 106 mu g/m(3) in Estonia and 220 mu g/m(3) in Finland, whereas SILAM predicted up to 75 mu g/m(3)). Remarkably enhanced particulate matter concentrations were found in all 7 continental (rural and urban) monitoring stations of Estonia, reproduced by the model within 10 % of the peak values in 5 stations. The general shape of the peak was reproduced by SILAM within 3-6 h of a time error. The model runs suggest that the wildfires were not solely responsible for enhanced concentrations: the continental aerosols constituted about a half of the total mass. The westernmost maritime station in Estonia was left almost untouched by the plume. Remarkable direct effect of the aerosols on boundary-layer meteorological conditions, PBL height, near-surface wind and temperature was found during this episode when the aerosol direct radiative effect was considered in numerical weather prediction model HARMONIE.

Original languageEnglish
Title of host publicationAIR POLLUTION MODELING AND ITS APPLICATION XXIV
EditorsDG Steyn, N Chaumerliac
PublisherSPRINGER INT PUBLISHING AG
Pages547-551
Number of pages5
ISBN (Print)978-3-319-24476-1
DOIs
Publication statusPublished - 2016
Event34th International Technical Meeting on Air Pollution Modelling and its Application (ITM) - Montpellier, France
Duration: 4 May 20158 May 2015

Publication series

NameSpringer Proceedings in Complexity
PublisherSPRINGER INT PUBLISHING AG

Conference

Conference34th International Technical Meeting on Air Pollution Modelling and its Application (ITM)
CountryFrance
CityMontpellier
Period4/05/158/05/15

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