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Ann. Geophys., 21, 2219-2232, 2003
www.ann-geophys.net/21/2219/2003/
© European Geosciences Union 2003
Regional model simulation of the hydrometeorological effects of the Fucino Lake on the surrounding region
B. Tomassetti1, F. Giorgi2, M. Verdecchia1, and G. Visconti1
1CETEMPS, Department of Physics, University of L’Aquila, Via Vetoio, 67010 Coppito L’Aquila, Italy
2Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34014 Trieste, Italy
Abstract. The drainage of the
Fucino Lake of central Italy was completed in 1873, and this possibly caused
significant climatic changes over the Fucino basin. In this paper we discuss a
set of short-term triple-nested regional model simulations of the
meteorological effects of the Fucino Lake on the surrounding region. We find
that the model simulates realistic lake-breeze circulations and their response
to background winds. The simulations indicate that the lake affects the
temperature of the surrounding basin in all seasons and precipitation in the
cold season, when cyclonic perturbations move across the region. Some effects
of the lake also extend over areas quite far from the Fucino basin. Our results
support the hypothesis that the drainage of the lake might have significantly
affected the climate of the lake basin. However, longer simulations and further
development in some aspects of the model are needed, in order to provide a more
statistically robust evaluation of the simulated lake-effects.
Key words. Hydrology (anthropogenic
effects) – Meteorology and atmospheric dynamics (climatology; mesoscale
meteorology)
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