Parameterisation of the Planetary Boundary Layer for Diagnostic Wind Models |
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Authors: | Massimiliano Burlando Emilia Georgieva Corrado F Ratto |
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Institution: | (1) Department of Physics, University of Genoa, Via Dodecaneso 33, Genoa, 16146, Italy;(2) Institute of Geophysics, Bulgarian Academy of Sciences, Sofia, Bulgaria |
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Abstract: | The planetary boundary-layer (PBL) parameterization is a key issue for the definition of initial wind flow fields in diagnostic
models. However, PBL theories usually treat separately stable, neutral, and convective stability conditions, so that their
implementation in diagnostic wind models is not straightforward. In the present paper, an attempt is made to adopt a comprehensive
PBL parameterisation, covering stable/neutral and unstable atmospheric conditions, which appears suitable to diagnostic models.
This parameterisation is implemented into our diagnostic mass-consistent code. A validation of the consistency between the
implemented PBL parameterisations has been checked through an analysis of the sensitivity of the vertical wind profiles to
atmospheric stability. |
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Keywords: | Applied oriented numerical models Atmospheric stability High-resolution surface winds PBL parameterisation |
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