Two case studies of severe storms in the Mediterranean using AMSU
- 1Laboratoire de Meteorologie Dynamique/IPSL, Ecole Polytechnique, 91128 Palaiseau CEDEX, France
- 2Laboratoire d'Aérologie, Observatoire Midi-Pyrénées, 14 avenue Belin, 31400 Toulouse, France
Abstract. Mediterranean storms and their associated upper level features are diagnosed here using Advanced Microwave Sounding Unit (AMSU) observations. AMSU-A channel 8 is used to identify upper-level intrusions of stratospheric air, which are often present upstream of heavy precipitating areas, while a combination of AMSU-B channels 3 and 5 is chosen to discriminate moderate to heavily precipitating areas. This precipitation detection method provides results that are in good agreement with TRMM rainfall product and independent ground-based precipitation data. These tools allow us to follow the concomitant evolution of two severe rainfall events in the Mediterranean region and associated upper-level features.