Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs Impact
The present research aims to evaluate the impact of stream reservoirs on the Dniester river floods wave dynamics. The main approach consisted in the evaluation of the changes that occur in the flood parameters for three periods: natural flow, flow regulated by Dubasary reservoir, flow regulated by t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Environmental Sciences Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4931/25/1/92 |
| _version_ | 1827737429114617856 |
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| author | Ana Jeleapov |
| author_facet | Ana Jeleapov |
| author_sort | Ana Jeleapov |
| collection | DOAJ |
| description | The present research aims to evaluate the impact of stream reservoirs on the Dniester river floods wave dynamics. The main approach consisted in the evaluation of the changes that occur in the flood parameters for three periods: natural flow, flow regulated by Dubasary reservoir, flow regulated by the Dniester hydropower complex and Dubasary reservoir. Using the hydrological time series from the stations situated upstream and downstream of the reservoirs, the following were calculated and compared: flood characteristics, peaks of 10, 5, 1, 0.5, and 0.1% probability, and environment flow components such as high-flow pulses, small floods, large floods. The results show that high flood protection is specific to the Dniester hydropower complex, while through the Dubasary reservoir the flood wave passes mainly in transit. Due to the flow regulating impact, small floods as well as their average peaks and duration were reduced toward the reservoirs’ downstream part. High-flow pulses increased in number after the Dniester hydropower complex construction due to hydropeaking effect; however, their reduction is observed downstream of the Dubasary reservoir. Large floods increase in number in the upper part but are transformed into small floods toward the downstream, thus increasing the flood protection capacity. |
| first_indexed | 2024-03-11T02:29:53Z |
| format | Article |
| id | doaj.art-95490acab4834516b22571a1e33cd40d |
| institution | Directory Open Access Journal |
| issn | 2673-4931 |
| language | English |
| last_indexed | 2024-03-11T02:29:53Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Environmental Sciences Proceedings |
| spelling | doaj.art-95490acab4834516b22571a1e33cd40d2023-11-18T10:20:14ZengMDPI AGEnvironmental Sciences Proceedings2673-49312023-03-012519210.3390/ECWS-7-14193Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs ImpactAna Jeleapov0Institute of Ecology and Geography, Moldova State University, MD-2028 Chisinau, MoldovaThe present research aims to evaluate the impact of stream reservoirs on the Dniester river floods wave dynamics. The main approach consisted in the evaluation of the changes that occur in the flood parameters for three periods: natural flow, flow regulated by Dubasary reservoir, flow regulated by the Dniester hydropower complex and Dubasary reservoir. Using the hydrological time series from the stations situated upstream and downstream of the reservoirs, the following were calculated and compared: flood characteristics, peaks of 10, 5, 1, 0.5, and 0.1% probability, and environment flow components such as high-flow pulses, small floods, large floods. The results show that high flood protection is specific to the Dniester hydropower complex, while through the Dubasary reservoir the flood wave passes mainly in transit. Due to the flow regulating impact, small floods as well as their average peaks and duration were reduced toward the reservoirs’ downstream part. High-flow pulses increased in number after the Dniester hydropower complex construction due to hydropeaking effect; however, their reduction is observed downstream of the Dubasary reservoir. Large floods increase in number in the upper part but are transformed into small floods toward the downstream, thus increasing the flood protection capacity.https://www.mdpi.com/2673-4931/25/1/92the Dniester riverfloodsreservoirs impactenvironment flow components |
| spellingShingle | Ana Jeleapov Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs Impact Environmental Sciences Proceedings the Dniester river floods reservoirs impact environment flow components |
| title | Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs Impact |
| title_full | Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs Impact |
| title_fullStr | Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs Impact |
| title_full_unstemmed | Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs Impact |
| title_short | Flood Wave Dynamics in the Transboundary Dniester River Floodplain under Reservoirs Impact |
| title_sort | flood wave dynamics in the transboundary dniester river floodplain under reservoirs impact |
| topic | the Dniester river floods reservoirs impact environment flow components |
| url | https://www.mdpi.com/2673-4931/25/1/92 |
| work_keys_str_mv | AT anajeleapov floodwavedynamicsinthetransboundarydniesterriverfloodplainunderreservoirsimpact |