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Evaluation of Profiles of Standard Deviation of Vertical Wind in the Urban Area of Rome: Performances of Monin–Obukhov Similarity Theory Using Different Scaling Variables

Author

Listed:
  • Armando Pelliccioni

    (Compensation Authority (INAIL), Monte Porzio Catone, 00078 Rome, Italy)

  • Livia Grandoni

    (Compensation Authority (INAIL), Monte Porzio Catone, 00078 Rome, Italy
    Department of Civil, Constructional and Environmental Engineering, Sapienza University, 00185 Rome, Italy)

  • Annalisa Di Bernardino

    (Physics Department, Sapienza University, 00185 Rome, Italy)

Abstract

The parametrizations of meteorological variables provided by the Monin–Obukhov similarity theory (MOST) is of major importance for pollutant dispersion assessment. However, the complex flow pattern that characterizes the urban areas limits the applicability of the MOST. In this work, the performance of different existing parametrizations of the standard deviation of vertical wind velocity were tested in the city of Rome. Results were compared with experimental data acquired by a sonic detection and ranging (SODAR) and a sonic anemometer. Different scaling variables estimated from the anemometer data by considering two coordinate systems—one aligned with the geodetic reference frame and the other following the flow streamlines—were used to evaluate the effects of flow distortion due to the presence of buildings. Results suggest that the MOST parametrizations perform better if the scaling variables obtained using the coordinate system following the flow streamlines are used. This estimation of the scaling variables would make it possible to overcome the difficulties in conducting measurements of turbulent fluxes, either at different altitudes or even in the constant flux layer.

Suggested Citation

  • Armando Pelliccioni & Livia Grandoni & Annalisa Di Bernardino, 2021. "Evaluation of Profiles of Standard Deviation of Vertical Wind in the Urban Area of Rome: Performances of Monin–Obukhov Similarity Theory Using Different Scaling Variables," Sustainability, MDPI, vol. 13(15), pages 1-20, July.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:15:p:8426-:d:603406
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    References listed on IDEAS

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    1. Armando Pelliccioni & Paolo Monti & Giorgio Cattani & Fabio Boccuni & Marco Cacciani & Silvia Canepari & Pasquale Capone & Maria Catrambone & Mariacarmela Cusano & Maria Concetta D’Ovidio & Antonella , 2020. "Integrated Evaluation of Indoor Particulate Exposure: The VIEPI Project," Sustainability, MDPI, vol. 12(22), pages 1-25, November.
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