Tuesday, 17 September 2013
Breckenridge Ballroom (Peak 14-17, 1st Floor) / Event Tent (Outside) (Beaver Run Resort and Conference Center)
HYMEX (HYdrological cycle in Mediterranean Experiment) is an international measurement campaign that aims at improving our understanding and quantification of processes related to the hydrological cycle in the Mediterranean region at different scales (from the individual event scale to seasonal and inter-annual variability). During the Special Observation Period (SOP-1) conducted from September 5th to November 6th 2012, an important and complementary remote sensing network (operational radars, X band research radars, Micro Rain Radars, disdrometers, and a dense network of rain gauges) has been deployed in the Cévennes-Vivarais region (South of France) in order to investigate the structure and the heterogeneity of precipitations as well as the impact of orography on this structure. This observational network provides us with high resolution data, both in time and space, over different areas of the Cevennes region from the plain, to the higher mountainous areas. Hence, these data will support our research to precisely describe the precipitation systems and their structures.
In this presentation, after reviewing the HYMEX campaign background, we will focus on the precipitation study scientific objectives and provide preliminary results of a couple of major events that were observed during SOP-1. The evolution of the synoptic ingredients in which the rainfall event is embedded will be presented as well as the spatio-temporal evolution of the rain pattern. We will also describe and discuss the horizontal and vertical structure and evolution of the precipitation field during this event using high resolution research X band precipitation radars, Micro Rain Radars, disdrometers, and rain gauges data.
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