<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>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.</p>
</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.

<bold>Dynamics of hydrological droughts propagation</bold> in mountainous catchments

Department of Hydrology and Water Management, Institute of Climatology and Hydrology, Faculty of Geographical Sciences

Miscellanea Geographica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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...

Dynamics of hydrological droughts propagation in mountainous catchments

Publié en ligne: 29 avr. 2022

Pages: 111 - 124

Reçu: 20 sept. 2020

Accepté: 09 févr. 2022

DOI: https://doi.org/10.2478/mgrsd-2022-0002

Mots clés
Drought identification, streamflow deficit, threshold level method, cluster analysis, spatial development of drought

© 2022 Malwina Kozek et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Dynamics of hydrological droughts propagation in mountainous catchments

Publié en ligne: 29 avr. 2022

Pages: 111 - 124

Reçu: 20 sept. 2020

Accepté: 09 févr. 2022

DOI: https://doi.org/10.2478/mgrsd-2022-0002

Mots clésDrought identification, streamflow deficit, threshold level method, cluster analysis, spatial development of drought

© 2022 Malwina Kozek et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Drought identification, streamflow deficit, threshold level method, cluster analysis, spatial development of drought