Title: Validation of numerically forecast vertical temperature profile with measurements for dispersion modelling

Authors: Boštjan Grašič; Primož Mlakar; Marija Zlata Božnar; Juš Kocijan

Addresses: MEIS d.o.o., Mali Vrh pri Šmarju 78, SI-1293 Šmarje-Sap, Slovenia ' MEIS d.o.o., Mali Vrh pri Šmarju 78, SI-1293 Šmarje-Sap, Slovenia ' MEIS d.o.o., Mali Vrh pri Šmarju 78, SI-1293 Šmarje-Sap, Slovenia ' Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia; University of Nova Gorica, Vipavska cesta 13, SI-5000 Nova Gorica, Slovenia

Abstract: Modelling of air pollution dispersion in the immediate vicinity of industrial sources over a complex terrain requires proper meteorological input data regarding the state of the atmosphere. For this purpose, numerical weather prediction-model results, rather than direct measurements, are becoming more widely used. In order to ensure high-quality modelling of the air-pollution dispersion, the forecast meteorological input data have to be of high quality. The quality of numerically obtained data has to therefore be validated with measurements. Measurements of the vertical temperature profile, which is vital, with radio acoustic sounding system (RASS) were used in this study. The paper presents the validation of the forecast vertical temperature profile over the complex terrain of the Krško Basin. The validation is carried out with sensor measurements from a 70 metre tall tower and remote RASS measurements. 13 months' worth of data is used for the validation study.

Keywords: vertical temperature profile; weather forecast validation; WRF; radio acoustic sounding system; RASS; complex terrain.

DOI: 10.1504/IJEP.2018.099143

International Journal of Environment and Pollution, 2018 Vol.64 No.1/2/3, pp.22 - 34

Available online: 11 Apr 2019 *

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