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Evaluation of the turbulence parametrization in the MOLOCH meteorological model

Quarterly Journal of the Royal Meteorological Society, ISSN: 1477-870X, Vol: 146, Issue: 726, Page: 124-140
2020
  • 25
    Citations
  • 0
    Usage
  • 10
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    25
    • Citation Indexes
      25
  • Captures
    10

Article Description

An appropriate parametrization of turbulence is fundamental both in meteorological and atmospheric dispersion models, in order to properly simulate the dynamics of the flow and of the pollutants transported by it. The turbulence closure adopted in the meteorological model MOLOCH is presented, and its reliability and effectiveness are evaluated based on turbulent kinetic energy data measured at two suburban sites in north and south Italy. Very different topographical situations characterise the two sites, an Alpine and a coastal region, respectively. Particular attention is paid in assessing the low-wind speed regime, a critical condition for air pollution, associated with turbulent features not yet fully understood. The analysis has proved that the turbulence closure in the MOLOCH model is able to capture and effectively reproduce the observed low-level atmospheric turbulence processes, in all stability conditions.

Bibliographic Details

Silvia Trini Castelli; Andrea Bisignano; Antonio Donateo; Paolo Martano; Tony C. Landi; Piero Malguzzi

Wiley

Earth and Planetary Sciences

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