Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basin
In the present study, we have assessed low-flow discharge deficits, and the characteristics of the low flows at a constant and variable (monthly) low-flow threshold. The low-flow truncation level was identified based on the 70th percentile from the flow duration curve (Q70%). Q95% was assumed to be...
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| Format: | Article |
| Language: | English |
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Publishing House of the University of Agriculture in Krakow
2018-09-01
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| Series: | Acta Scientiarum Polonorum. Formatio Circumiectus |
| Subjects: | |
| Online Access: | http://www.formatiocircumiectus.actapol.net/pub/17_3_205.pdf |
| _version_ | 1819151196119629824 |
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| author | Edmund Tomaszewski |
| author_facet | Edmund Tomaszewski |
| author_sort | Edmund Tomaszewski |
| collection | DOAJ |
| description | In the present study, we have assessed low-flow discharge deficits, and the characteristics of the low flows at a constant and variable (monthly) low-flow threshold. The low-flow truncation level was identified based on the 70th percentile from the flow duration curve (Q70%). Q95% was assumed to be the threshold for the deep low-flow discharge. Thirteen catchments in the Vistula basin, varying in size, river regime, and physico-geographical conditions, were selected for the study. The input data was a series of daily discharge data sets from the period 1951–2016, made available by IMGW-PIB (Polish Institute of Meteorology and Water Management – National Research Institute). Analyses were conducted of drought flow discharge deficit volume in absolute and relative values, and low-flow duration and deficits contributing to severe low-flows were calculated for temporal scales of months and years. Comparison of the obtained results led us to the determination of the basic factors affecting the formation of low-flow deficits, and the indication of restrictions when applying fixed and variable criteria for identifying river low-flows. |
| first_indexed | 2024-12-22T14:29:33Z |
| format | Article |
| id | doaj.art-181fcb6908b14f5cb8829df38959158a |
| institution | Directory Open Access Journal |
| issn | 1644-0765 |
| language | English |
| last_indexed | 2024-12-22T14:29:33Z |
| publishDate | 2018-09-01 |
| publisher | Publishing House of the University of Agriculture in Krakow |
| record_format | Article |
| series | Acta Scientiarum Polonorum. Formatio Circumiectus |
| spelling | doaj.art-181fcb6908b14f5cb8829df38959158a2022-12-21T18:22:46ZengPublishing House of the University of Agriculture in KrakowActa Scientiarum Polonorum. Formatio Circumiectus1644-07652018-09-0117320521610.15576/ASP.FC/2018.17.3.205Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basinEdmund Tomaszewski0Faculty of Geographical Sciences, University of ŁódźIn the present study, we have assessed low-flow discharge deficits, and the characteristics of the low flows at a constant and variable (monthly) low-flow threshold. The low-flow truncation level was identified based on the 70th percentile from the flow duration curve (Q70%). Q95% was assumed to be the threshold for the deep low-flow discharge. Thirteen catchments in the Vistula basin, varying in size, river regime, and physico-geographical conditions, were selected for the study. The input data was a series of daily discharge data sets from the period 1951–2016, made available by IMGW-PIB (Polish Institute of Meteorology and Water Management – National Research Institute). Analyses were conducted of drought flow discharge deficit volume in absolute and relative values, and low-flow duration and deficits contributing to severe low-flows were calculated for temporal scales of months and years. Comparison of the obtained results led us to the determination of the basic factors affecting the formation of low-flow deficits, and the indication of restrictions when applying fixed and variable criteria for identifying river low-flows.http://www.formatiocircumiectus.actapol.net/pub/17_3_205.pdflow-flow regimelow-flow threshold levelhydrological droughtthe Vistula river basin |
| spellingShingle | Edmund Tomaszewski Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basin Acta Scientiarum Polonorum. Formatio Circumiectus low-flow regime low-flow threshold level hydrological drought the Vistula river basin |
| title | Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basin |
| title_full | Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basin |
| title_fullStr | Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basin |
| title_full_unstemmed | Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basin |
| title_short | Low-flow discharge deficits assessment, applying constant and variable low-flow threshold levels, as illustrated with the example of selected catchments in the Vistula river basin |
| title_sort | low flow discharge deficits assessment applying constant and variable low flow threshold levels as illustrated with the example of selected catchments in the vistula river basin |
| topic | low-flow regime low-flow threshold level hydrological drought the Vistula river basin |
| url | http://www.formatiocircumiectus.actapol.net/pub/17_3_205.pdf |
| work_keys_str_mv | AT edmundtomaszewski lowflowdischargedeficitsassessmentapplyingconstantandvariablelowflowthresholdlevelsasillustratedwiththeexampleofselectedcatchmentsinthevistulariverbasin |