Search: onr:"swepub:oai:DiVA.org:vti-9994" >
A coupled road dust...
-
Denby, Bruce RolstadThe Norwegian Institute for Air Research (NILU)
(author)
A coupled road dust and surface moisture model to predict non-exhaust road traffic induced particle emissions (NORTRIP). Part 2 : Surface moisture and salt impact modelling
- Article/chapterEnglish2013
Publisher, publication year, extent ...
-
Elsevier,2013
-
printrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:vti-9994
-
https://urn.kb.se/resolve?urn=urn:nbn:se:vti:diva-9994URI
-
https://doi.org/10.1016/j.atmosenv.2013.09.003DOI
-
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-97953URI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
AuthorCount: 11Funding agencies:Nordic Council of Ministers Project NORTRIP BLS-306-00064; Norwegian Climate and Pollution Agency KLIF 4011009; Danish Environmental Protection Agency
-
Non-exhaust traffic induced emissions are a major source of airborne particulate matter in most European countries. This is particularly important in Nordic and Alpine countries where winter time road traction maintenance occurs, e.g. salting and sanding, and where studded tyres are used. Though the total mass generated by wear sources is a key factor in non-exhaust emissions, these emissions are also strongly controlled by surface moisture conditions. In this paper, Part 2, the road surface moisture submodel of a coupled road dust and surface moisture model (NORTRIP) is described.We present a description of the road surface moisture part of the model and apply the coupled model to seven sites in Stockholm, Oslo, Helsinki and Copenhagen over 18 separate periods, ranging from 3.5 to 24 months. At two sites surface moisture measurements are available and the moisture sub-model is compared directly to these observations. The model predicts the frequency of wet roads well at both sites, with an average fractional bias of -2.6%. The model is found to correctly predict the hourly surface state, wet or dry, 85% of the time. From the 18 periods modelled using the coupled model an average absolute fractional bias of 15% for PM10 concentrations was found. Similarly the model predicts the 90'th daily mean percentiles of PMio with an average absolute bias of 19% and an average correlation (R-2) of 0.49. When surface moisture is not included in the modelling then this average correlation is reduced to 0.16, demonstrating the importance of the surface moisture conditions. Tests have been carried out to assess the sensitivity of the model to model parameters and input data. The model provides a useful tool for air quality management and for improving our understanding of non-exhaust traffic emissions.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Sundvor, IngridThe Norwegian Institute for Air Research (NILU)
(author)
-
Johansson, ChristerStockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)(Swepub:su)chjoh
(author)
-
Pirjola, Liisa H.Helsinki Metropolia University of Applied Sciences
(author)
-
Ketzel, MatthiasAarhus Universitet
(author)
-
Norman, Michael A.Environment and Health Protection Administration of the City of Stockholm
(author)
-
Kupiainen, Kaarle J.Nordic Envicon Oy
(author)
-
Gustafsson, Mats,1966-Statens väg- och transportforskningsinstitut,Miljö, MILJÖ(Swepub:vti)mats.gustafsson@vti.se
(author)
-
Blomqvist, Göran,1963-Statens väg- och transportforskningsinstitut,Miljö, MILJÖ(Swepub:vti)goran.blomqvist@vti.se
(author)
-
Kauhaniemi, MariFinish Meteorological Institute (FMI)
(author)
-
Omstedt, GunnarSMHI
(author)
-
The Norwegian Institute for Air Research (NILU)Institutionen för tillämpad miljövetenskap (ITM)
(creator_code:org_t)
Related titles
-
In:Atmospheric Environment: Elsevier81, s. 485-5031352-23101873-2844
Internet link
Find in a library
To the university's database
- By the author/editor
-
Denby, Bruce Rol ...
-
Sundvor, Ingrid
-
Johansson, Chris ...
-
Pirjola, Liisa H ...
-
Ketzel, Matthias
-
Norman, Michael ...
-
show more...
-
Kupiainen, Kaarl ...
-
Gustafsson, Mats ...
-
Blomqvist, Göran ...
-
Kauhaniemi, Mari
-
Omstedt, Gunnar
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
-
and Meteorology and ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
-
and Environmental Sc ...
- Articles in the publication
-
Atmospheric Envi ...
- By the university
-
VTI - The Swedish National Road and Transport Research Institute
-
Stockholm University