Papers by Antonia LONGOBARDI
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Journal of Arid Land, 2014
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Procedia Environmental Sciences, 2013
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International Journal of Climatology, Jul 31, 2010
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Egu General Assembly Conference Abstracts, Apr 1, 2009
Low flow characteristics are affected by different physiographic factors such as climate, topogra... more Low flow characteristics are affected by different physiographic factors such as climate, topography, geology and soils, and regional regression prediction models, to estimate low flow indexes at ungauged sites, mainly rely on these factors. The present study focuses on the baseflow index, one of the most important low flow characteristics for a catchment, and presents: i) the analysis of baseflow separation algorithms for BFI evaluation and ii) a regional approach to predict the BFI at ungauged sites in a Mediterranean region, for which only very poor data are available. As showed in Longobardi and Villani (2008), the prediction of baseflow contribution to total streamflow is based on the introduction of a permeability index at the catchment scale, and regional linear regression equations simply relate the latter to the BFI. Initially defined on the base of a hydro-geomorhological classification, successfully used for flood prediction in ungauged sites, the permeability index is computed on the base of an apparently over-simplified scheme which only account for lithological and hydrogeological characteristics of the studied region. Its computation does not require extensive soil surveys, being thus particularly suited for very poorly gauged sites. The case study here presented is represented by 29 stations, ranging in area from 13 to 5500 km2, located within a region of about 20.000 kmq, in Southern Italy. Catchment lithology appeared to be the major factor affecting baseflow in the studied area, and it is shown that an accurate catchment geology spatial variability description reduces the average long term BFI index prediction error from 23% to 14% and above all increases the explained variance from 23% to 68%.
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Procedia Engineering, 2015
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Procedia Engineering, 2015
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Engineering Geology for Society and Territory - Volume 3, 2014
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Daily streamflow does show particular features unrecognizable in streamflow aggregated at a diffe... more Daily streamflow does show particular features unrecognizable in streamflow aggregated at a different time scale (monthly and annual), which does not enable the use of ARMA type models (Box and Jenkins, 1976), successfully applied to monthly and annual timeseries. In 1970 Bernier first and Weiss (1977) later, proposed a shot noise (SN) model for daily streamflow simulation and a few
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Precipitation tendencies analyses have been of great concern during the past century, mainly beca... more Precipitation tendencies analyses have been of great concern during the past century, mainly because of the attention given to global climate change from the scientific community. Along with trends in rainfall amount, precipitation fluctuations play a dominant role in a number of water related issues, especially for those areas, such as the Mediterranean basins, hugely characterized by an extreme rainfall variability and stressed by the combination of a dry climate and an excessive water demand. In this paper, a preliminary analysis aimed at the characterization of inter-annual and intra-annual precipitation variability, is reported for two study region, experiencing a typical Mediterranean climate.
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Rendiconti online della Società Geologica Italiana, 2015
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Procedia Environmental Sciences, 2013
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Earth and Environmental Sciences, 2011
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Advances in Natural and Technological Hazards Research, 2013
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Papers by Antonia LONGOBARDI