Dynamics of hydrological droughts propagation in mountainous catchments

Author:

Kozek Malwina1ORCID,Tomaszewski Edmund1ORCID

Affiliation:

1. Department of Hydrology and Water Management, Institute of Climatology and Hydrology, Faculty of Geographical Sciences , University of Lodz , Łódź , Poland

Abstract

Abstract In the study, hydrological drought was identified assuming that the occurrence of river low-flow is a symptom of drought, and is also a good estimator of its progress. The research was conducted in the upper Dunajec river catchment, for which a series of daily discharges from 20 gauging stations during the period 1989–2018 were available. The low-flow periods were identified on the basis of the Threshold Level Method, which corresponds to the seventieth percentile of the flow duration curve. On the basis of a developed algorithm, 41 drought events were identified. Analysis included spatial parameters referring to range, severity, concentration, continuation, and the development pace of hydrological drought. Finally, on the basis of cluster analysis, five dynamic types of hydrological drought were identified.

Publisher

Walter de Gruyter GmbH

Subject

Earth and Planetary Sciences (miscellaneous)

Reference52 articles.

1. Baran-Gurgul, K 2014, ‘A comparison of hydrological drought characteristics defined by the POT and SPA methods in the Dunajec river basin’, Infrastructure and Ecology of Rural Areas, no. 4, pp. 1431–1444.

2. Barczyk, G 2008, Tatrzańskie wywierzyska. Krasowe systemy wywierzyskowe Tatr Polskich [Tatra vaucluse springs. Krast vaulcuse springs systems of the Polish Tatras], Tatrzański Park Narodowy, Zakopane.

3. Chełmicki, W & Bieńkowski, T 2005, ‘Przepływy niżówkowe w dorzeczu górnego Dunajca w 2003 roku na tle wielolecia 1951–2003’ [‘Low flows in the upper part of the Dunajec drainage basin in 2003 compared with the period of 1951–2003’], Folia Geographica Series Geographica Physica, vol. 35–36, pp. 65–75

4. Dębski, K 1970, Hydrologia [Hydrology], Arkady, Warszawa.

5. Dingman, SL 2002, Physical Hydrology. Prentice Hall, New Jersey.

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