Affiliation:
1. Department of Land and Agroforest Environment, University of Padua, Padua, Italy
Abstract
Abstract
The 29 August 2003 storm on the upper Tagliamento River basin in the eastern Italian Alps is examined as a prototype for organized convective systems that dominate the upper tail of the precipitation frequency distribution and are likely responsible for the majority of flash flood peaks in this area. The availability of high-resolution rainfall estimates from radar observations and rain gauge networks, together with flood response observations derived from stream gauge data and post-event surveys, provides the opportunity to study the hydrometeorological and hydrological mechanisms associated with this extreme storm and the associated flood. The flood occurred at the end of a climatic anomaly of prolonged drought and warm conditions over Europe and the Mediterranean region. A characteristic of the event is its organization in well-defined banded structures, some of which persisted in the same locations for the duration of the event. The steadiness of these rainbands led to highly variable precipitation accumulations and, associated with orographic enhancement, played a central role in the space–time organization of the storm. Two dominant controls on extreme flood response are recognized and analyzed: steadiness of convective bands and dry antecedent soil moisture conditions.
Publisher
American Meteorological Society
Reference41 articles.
1. Statistical characterization of spatial patterns of rainfall cells in extratropical cyclones.;Bacchi;J. Geophys. Res.,1996
2. The operational weather radar of Fossalon di Grado (Gorizia, Italy): Accuracy of reflectivity and differential reflectivity measurements.;Bechini;Meteor. Atmos. Phys.,2002
3. Berenguer, M., G. W.Lee, D.Sempere-Torres, and I.Zawadzki, 2002: A variational method for attenuation correction of radar signal. Proc. Second European Conf. on Radar Meteorology (ERAD), Delft, Netherlands, European Meteorological Society, 11–16.
4. On the use of real-time radar rainfall estimates for flood prediction in mountainous basins.;Borga;J. Geophys. Res.,2000
5. Analysis of topographic and climatic control on rainfall-triggered shallow landsliding using a quasi-dynamic wetness index.;Borga;J. Hydrol.,2002
Cited by
260 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献