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 #Menu Inicial#Publicações#Outras publicações/coleções #The Overarching Issues of the European Space : Preparing the new decade for key socio-economic and environmental challenges
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The Overarching Issues of the European Space
#The application of a Concentration Index on river discharge : a case study of selected stations in Spain
Dominic Royé, Jesús Horacio, Alfredo Ollero
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#Abstract
The frequency distribution of daily river discharge amounts almost conforms to a negative exponential distribution, reflecting the fact that there are small daily totals and few large ones. Positive exponential curves, which plot the cumulative percentages of days with discharges against the cumulative percentage of the discharge amounts that they contribute can be evaluated through the Concentration Index (CI). The higher the value, the larger the concentration of daily average river discharges. The Concentration Index has been applied as an initial trial to a selected number of stations in Spain. The spatial-temporal distribution of the CI for the selected stations is geographically consistent, reflecting the principal physiographic and climatic units of the country. CI has been shown as an index that perfectly describes the temporal behaviour of the river discharge. Furthermore, the application of the CI demonstrates its discriminatory capacity according to river type and it has been proven to be a new method for the interpretation of the distribution of flow throughout the year.
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Data da última atualização: 2022-11-18

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