Evidence for the role of the diabatic heating in synoptic scale processes: a case study example

The quasigeostrophic theory is used to address the role of diabatic forcing in synoptic scale processes over Iberia. A parametrization of diabatic heating is obtained in terms of a thermodynamic variable called the ice-liquid water potential temperature which is conservative under all phase chan...

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Main Authors: M. L. Martin, M. Y. Luna, F. Valero
Format: Article
Language:English
Published: Copernicus Publications 1997-04-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/15/487/1997/angeo-15-487-1997.pdf
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author M. L. Martin
M. Y. Luna
F. Valero
author_facet M. L. Martin
M. Y. Luna
F. Valero
author_sort M. L. Martin
collection DOAJ
description The quasigeostrophic theory is used to address the role of diabatic forcing in synoptic scale processes over Iberia. A parametrization of diabatic heating is obtained in terms of a thermodynamic variable called the ice-liquid water potential temperature which is conservative under all phase changes of water. A case study objectively selected by means of a rotated principal component analysis over the diabatic field is analyzed to test the proposed parametrization. This study highlights the fact that the magnitudes of diabatic forcing and dynamic forcing are very nearly the same throughout the troposphere. The results also show that the composite diabatic heating is a better representation for both cloudiness and precipitation fields than the dynamic forcing.
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spelling doaj.art-77bc3dc588b4436aaf795190709e54492022-12-22T03:52:27ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05761997-04-011548749310.1007/s00585-997-0487-2Evidence for the role of the diabatic heating in synoptic scale processes: a case study exampleM. L. Martin0M. Y. Luna1F. Valero2Dpto. Astrofísica y CC. de la Atmósfera, Facultad de CC. Fisícas, Universidad Complutense de Madrid, 28040 Madrid, SpainDpto. Astrofísica y CC. de la Atmósfera, Facultad de CC. Fisícas, Universidad Complutense de Madrid, 28040 Madrid, SpainDpto. Astrofísica y CC. de la Atmósfera, Facultad de CC. Fisícas, Universidad Complutense de Madrid, 28040 Madrid, SpainThe quasigeostrophic theory is used to address the role of diabatic forcing in synoptic scale processes over Iberia. A parametrization of diabatic heating is obtained in terms of a thermodynamic variable called the ice-liquid water potential temperature which is conservative under all phase changes of water. A case study objectively selected by means of a rotated principal component analysis over the diabatic field is analyzed to test the proposed parametrization. This study highlights the fact that the magnitudes of diabatic forcing and dynamic forcing are very nearly the same throughout the troposphere. The results also show that the composite diabatic heating is a better representation for both cloudiness and precipitation fields than the dynamic forcing.https://www.ann-geophys.net/15/487/1997/angeo-15-487-1997.pdf
spellingShingle M. L. Martin
M. Y. Luna
F. Valero
Evidence for the role of the diabatic heating in synoptic scale processes: a case study example
Annales Geophysicae
title Evidence for the role of the diabatic heating in synoptic scale processes: a case study example
title_full Evidence for the role of the diabatic heating in synoptic scale processes: a case study example
title_fullStr Evidence for the role of the diabatic heating in synoptic scale processes: a case study example
title_full_unstemmed Evidence for the role of the diabatic heating in synoptic scale processes: a case study example
title_short Evidence for the role of the diabatic heating in synoptic scale processes: a case study example
title_sort evidence for the role of the diabatic heating in synoptic scale processes a case study example
url https://www.ann-geophys.net/15/487/1997/angeo-15-487-1997.pdf
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