Faceted classification of the spring flood hydrographs of the Southern Buh river

Rok, strany: 2020, 71 - 80

A hydrograph shape reflects the effect of hydrological, hydrobiological, hydromorphological, hydrochemical and other processes acting in river basins. Classification of river hydrographs could help to evaluate the long-term changes in river basins or compare hydrological response of different basins. We present the methodology of the spring flood hydrograph classification and show its application in the Southern Buh River basin, Ukraine. The methodology uses faceted classification employing a multidimensional statistical approach and a controlled number of classes. We analyze daily discharge data for 102 spring flood hydrographs of the Southern Buh River from the period 1914 – 2015. Classification of hydrographs taking into account the date of the beginning, peak and end of the spring flood flows and the peak discharge provides 81 classes, while only ten of them contained three and more hydrographs. The most frequent hydrograph shapes are EEELd (early beginning, peak and end of spring flood, low peak discharge) and LLLHd (late beginning, peak and end of spring flood, high peak discharge) that contain 8 and 10 hydrographs, respectively. While the majority of hydrographs falling in the class LLLHd occurred until the end of the 1960’s, the hydrographs from the LLLHd were mostly observed in the last three decades.

ISO 690:

Khrystiuk, B., Gorbachova, L., Prykhodkina, V. 2020. Faceted classification of the spring flood hydrographs of the Southern Buh river. In Geografický časopis, vol. 72, no.1, pp. 71-80. 0016-7193. DOI: https://doi.org/10.31577/geogrcas.2020.72.1.04

APA:

Khrystiuk, B., Gorbachova, L., Prykhodkina, V. (2020). Faceted classification of the spring flood hydrographs of the Southern Buh river. Geografický časopis, 72(1), 71-80. 0016-7193. DOI: https://doi.org/10.31577/geogrcas.2020.72.1.04

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