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An entropy approach...
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Ridolfi, ElenaSapienza University of Rome, Rome, Italy
(author)
An entropy approach for evaluating the maximum information content achievable by an urban rainfall network
- Article/chapterEnglish2011
Publisher, publication year, extent ...
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2011-07-28
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Copernicus GmbH,2011
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-401006
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-401006URI
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https://doi.org/10.5194/nhess-11-2075-2011DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Hydrological models are the basis of operational flood-forecasting systems. The accuracy of these models is strongly dependent on the quality and quantity of the input information represented by rainfall height. Finer space-time rainfall resolution results in more accurate hazard forecasting. In this framework, an optimum raingauge network is essential in predicting flood events.This paper develops an entropy-based approach to evaluate the maximum information content achievable by a rainfall network for different sampling time intervals. The procedure is based on the determination of the coefficients of transferred and nontransferred information and on the relative isoinformation contours.The nontransferred information value achieved by the whole network is strictly dependent on the sampling time intervals considered. An empirical curve is defined, to assess the objective of the research: the nontransferred information value is plotted versus the associated sampling time on a semi-log scale. The curve has a linear trend.In this paper, the methodology is applied to the high-density raingauge network of the urban area of Rome.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Montesarchio, ValeriaSapienza University of Rome, Rome, Italy
(author)
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Russo, FabioSapienza University of Rome
(author)
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Napolitano, FrancescoSapienza University of Rome
(author)
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Sapienza University of Rome, Rome, ItalySapienza University of Rome
(creator_code:org_t)
Related titles
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In:Natural hazards and earth system sciences: Copernicus GmbH11:7, s. 2075-20831561-86331684-9981
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