Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River
Our research introduces the river regulation effects on three sections of the upper and middle Odra River (south-western Poland), with differently channelized parts. In the upper and lower reaches, the river was straightened, narrowed, and trained with groins, whereas in the middle section, it was a...
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ftmdpi:oai:mdpi.com:/2073-4441/15/2/370/ 2023-08-20T04:08:31+02:00 Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River Ádám Nádudvari Agnieszka Czajka Bartłomiej Wyżga Marcin Zygmunt Marcin Wdowikowski agris 2023-01-16 application/pdf https://doi.org/10.3390/w15020370 EN eng Multidisciplinary Digital Publishing Institute Hydrology https://dx.doi.org/10.3390/w15020370 https://creativecommons.org/licenses/by/4.0/ Water; Volume 15; Issue 2; Pages: 370 discharge duration curve water stage duration curve river channelization channel morphology channel incision NAO index Text 2023 ftmdpi https://doi.org/10.3390/w15020370 2023-08-01T08:19:48Z Our research introduces the river regulation effects on three sections of the upper and middle Odra River (south-western Poland), with differently channelized parts. In the upper and lower reaches, the river was straightened, narrowed, and trained with groins, whereas in the middle section, it was also impounded by numerous barrages. The discharge duration (DD) and water stage duration (WSD) curves for water-gauge stations from these river sections were analyzed to recognize changes in river flows and channel morphology since the mid-20th century. This analysis is supplemented by an examination of repeated surveys of the gauge cross sections of the river, annual precipitation totals in its catchment, and their relationship to the variation of the North Atlantic Oscillation (NAO) index. Our findings provide new hydrological insights for the region. The three river sections exhibited different patterns of the adjustment of the channel morphology to the river channelization: upper section was typified by channel incision, middle section by channel stability, and lower section by channel incision in its upper part and vertical stability of the channel bed in the lower part. Barrages in the middle section stabilized water stages in a wide range of hydrological conditions. Annual precipitation totals and river run-off did not change systematically over the study period. The variation in precipitation totals was inversely related to annual values of the NAO index. The study confirms the usefulness of DD/WSD curves to analyze changes in river run-off and the vertical position of the channel bed. Text North Atlantic North Atlantic oscillation MDPI Open Access Publishing Water 15 2 370 |
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Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
discharge duration curve water stage duration curve river channelization channel morphology channel incision NAO index |
spellingShingle |
discharge duration curve water stage duration curve river channelization channel morphology channel incision NAO index Ádám Nádudvari Agnieszka Czajka Bartłomiej Wyżga Marcin Zygmunt Marcin Wdowikowski Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River |
topic_facet |
discharge duration curve water stage duration curve river channelization channel morphology channel incision NAO index |
description |
Our research introduces the river regulation effects on three sections of the upper and middle Odra River (south-western Poland), with differently channelized parts. In the upper and lower reaches, the river was straightened, narrowed, and trained with groins, whereas in the middle section, it was also impounded by numerous barrages. The discharge duration (DD) and water stage duration (WSD) curves for water-gauge stations from these river sections were analyzed to recognize changes in river flows and channel morphology since the mid-20th century. This analysis is supplemented by an examination of repeated surveys of the gauge cross sections of the river, annual precipitation totals in its catchment, and their relationship to the variation of the North Atlantic Oscillation (NAO) index. Our findings provide new hydrological insights for the region. The three river sections exhibited different patterns of the adjustment of the channel morphology to the river channelization: upper section was typified by channel incision, middle section by channel stability, and lower section by channel incision in its upper part and vertical stability of the channel bed in the lower part. Barrages in the middle section stabilized water stages in a wide range of hydrological conditions. Annual precipitation totals and river run-off did not change systematically over the study period. The variation in precipitation totals was inversely related to annual values of the NAO index. The study confirms the usefulness of DD/WSD curves to analyze changes in river run-off and the vertical position of the channel bed. |
format |
Text |
author |
Ádám Nádudvari Agnieszka Czajka Bartłomiej Wyżga Marcin Zygmunt Marcin Wdowikowski |
author_facet |
Ádám Nádudvari Agnieszka Czajka Bartłomiej Wyżga Marcin Zygmunt Marcin Wdowikowski |
author_sort |
Ádám Nádudvari |
title |
Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River |
title_short |
Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River |
title_full |
Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River |
title_fullStr |
Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River |
title_full_unstemmed |
Patterns of Recent Changes in Channel Morphology and Flows in the Upper and Middle Odra River |
title_sort |
patterns of recent changes in channel morphology and flows in the upper and middle odra river |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/w15020370 |
op_coverage |
agris |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Water; Volume 15; Issue 2; Pages: 370 |
op_relation |
Hydrology https://dx.doi.org/10.3390/w15020370 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w15020370 |
container_title |
Water |
container_volume |
15 |
container_issue |
2 |
container_start_page |
370 |
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1774720804244684800 |