Publication: Mesoscale convective complexes over the western Mediterranean area during 1990-1994
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1998
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Springer-Verlag Wien
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Abstract
Mesoscale Convective Systems (MCSs) data registers from June to December during 1990-94 were obtained from the Spanish National Meteorological Institute (INM). Fifteen Mesoscale Convective Complexes (MCCs) were identified through this database. Most of the MCCs developed during the last week of September. The dominant synoptic patterns related to the mesoscale systems were cold fronts at the surface with warm and moist low-level cores, and cut-off low or deep trough throughout the middle and upper levels. These synoptic patterns were found in all the fifteen cases studied. The hourly centroid location of each MCC was used to trace their tracks, which followed a general direction towards the E or NE in almost all cases. These trajectories are clearly related to the synoptic patterns found. Finally, two MCCs chosen as representative of their evolution are described and the related physical processes are discussed.
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© Springer-Verlag 1998. We wish to thank the helpful comments of Dr. F. Sanders and two anonymous reviewers for valuable comments that improved very much the original manuscript. We thank the Spanish National Meteorological Institute (INM), and in particular, R. Riosalido, for providing that data and the daily bulletins used in this paper. We would also like to thank Dr. Casanova for the images he so kindly provided and Drs. F. Caracena (NSSL, NOAA) and A. Martins (University of Azores) for their valuable suggestions and help. Support was provided by the Comunidad of Madrid, grant No. COR0079/94.