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| Titel |
Assessment of a surface-layer parameterization scheme in an atmospheric model for varying meteorological conditions |
| VerfasserIn |
T. J. Anurose, D. Bala Subrahamanyam |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 32, no. 6 ; Nr. 32, no. 6 (2014-06-19), S.669-675 |
| Datensatznummer |
250121073
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| Publikation (Nr.) |
 copernicus.org/angeo-32-669-2014.pdf |
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| Zusammenfassung |
| The performance of a surface-layer parameterization scheme in a
high-resolution regional model (HRM) is carried out by comparing the
model-simulated sensible heat flux (H) with the concurrent in situ
measurements recorded at Thiruvananthapuram (8.5° N,
76.9° E), a coastal station in India. With a view to examining the
role of atmospheric stability in conjunction with the roughness lengths in
the determination of heat exchange coefficient (CH) and H for varying
meteorological conditions, the model simulations are repeated by assigning
different values to the ratio of momentum and thermal roughness lengths
(i.e. z0m/z0h) in three distinct configurations of
the surface-layer scheme designed for the present study. These three
configurations resulted in differential behaviour for the varying
meteorological conditions, which is attributed to the sensitivity of CH to
the bulk Richardson number (RiB) under extremely
unstable, near-neutral and stable stratification of the atmosphere. |
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