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| Titel |
Instability and its relation to precipitation over the Eastern Iberian Peninsula |
| VerfasserIn |
I. Iturrioz, E. Hernández, P. Ribera, S. Queralt |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Observation, Prediction and Verification of Precipitation (EGU Session 2006) ; Nr. 10 (2007-04-26), S.45-50 |
| Datensatznummer |
250007852
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| Publikation (Nr.) |
 copernicus.org/adgeo-10-45-2007.pdf |
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| Zusammenfassung |
| Synoptic situations producing rainfall at four rawinsonde observatories at
eastern Spain are classified as stratiform or convective depending on
dynamic and thermodynamic instability indices. Two daily radiosonde and
daily-accumulated precipitation data from four observatories in Eastern
Spain are used: Madrid-Barajas (MB), Murcia (MU), Palma de Mallorca (PA) and
Zaragoza (ZA). We calculated two thermodynamic instability indices from
radiosonde data: CAPE and LI. Likewise, from ERA40 reanalysis data we have
calculated the Q vector divergence over the Iberian Peninsula and Balearic
Islands, as a parameter describing dynamical instability. Synoptic
situations producing rainfall were classified as convective or stratiform,
satisfying a criterion based on the values of dynamic and thermodynamic
indices at each observatory. It is observed that the number of days with
stratiform precipitation related to the total number of precipitation days
follows a consistent annual pattern. |
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