Validation and sensitivity analysis of the WRF mesoscale model PBL schemes over Tunisia using dynamical downscaling approach View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2019-12

AUTHORS

Hosni Snoun, H. Kanfoudi, G. Bellakhal, J. Chahed

ABSTRACT

Regional-scale atmospheric circulations play a critical role in air pollutants transport. The planetary boundary layer height, in conjunction with other components, is a key factor in atmospheric dispersion. In this study, planetary boundary layer parameters over two coastal locations (Skhira and Marsa-Dhouiba) in Tunisia were simulated using the Weather Research and Forecasting (WRF) v.4.0 dynamical core. Regarding the validation process, the model evaluation demonstrated reasonable agreement with measurements in the study sites and periods. In general, the model slightly overestimates the observed values of near-surface temperature as well as the wind speed in Skhira and slightly underestimates the observed values in Marsa-Dhouiba. For wind direction, however, WRF simulations give opposite results. This preliminary study showed that the model is able to predict the considered meteorological fields in an accurate way with both final analysis (FNL) and Era-Interim boundary datasets. Therefore, the required meteorological fields to initialize an atmospheric dispersion model can be captured reasonably well at regional scale after dynamical downscaling. Integrating our results into project studies aiming at tracing air transports could serve the purpose of reducing environmental pollution over Tunisia. More... »

PAGES

13

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s41207-019-0103-3

DOI

http://dx.doi.org/10.1007/s41207-019-0103-3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1112197187


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