Study of the River Discharge Alteration
This article aims to analyze the alteration in water discharge due to the building of one of the largest dams in Romania. Modifications in the hydrological patterns of the studied river were emphasized by a complex technique that includes decomposition models of the series into trends, seasonal indi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-03-01
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| Series: | Water |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4441/16/6/808 |
| _version_ | 1797239002350223360 |
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| author | Alina Bărbulescu Nayeemuddin Mohammed |
| author_facet | Alina Bărbulescu Nayeemuddin Mohammed |
| author_sort | Alina Bărbulescu |
| collection | DOAJ |
| description | This article aims to analyze the alteration in water discharge due to the building of one of the largest dams in Romania. Modifications in the hydrological patterns of the studied river were emphasized by a complex technique that includes decomposition models of the series into trends, seasonal indices, and random components, as well as into Intrinsic Mode Functions (IMFs). The Mann–Kendall trend test indicates the existence of different positive slopes for the subseries S1 and S2 (before and after the inception of the Siriu dam, respectively) built from the raw series, S. The stationarity hypothesis was rejected for all series. The multifractal analysis shows two different patterns of the data series. After decomposing the subseries S1 and S2, it resulted that the seasonality indices are not the same. Moreover, the seasonal variations decreased after building the dam. Empirical Mode Decomposition (EMD) unveils different short- and long-term patterns of the series before and after building the dam, concluding that there is a significant alteration in the river discharge after the dam’s inception. |
| first_indexed | 2024-04-24T17:44:36Z |
| format | Article |
| id | doaj.art-04d1e93723224afeae6b301155e50789 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-24T17:44:36Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-04d1e93723224afeae6b301155e507892024-03-27T14:08:11ZengMDPI AGWater2073-44412024-03-0116680810.3390/w16060808Study of the River Discharge AlterationAlina Bărbulescu0Nayeemuddin Mohammed1Faculty of Civil Engineering, Transilvania University of Brașov, 900152 Brașov, RomaniaFaculty of Civil Engineering, Transilvania University of Brașov, 900152 Brașov, RomaniaThis article aims to analyze the alteration in water discharge due to the building of one of the largest dams in Romania. Modifications in the hydrological patterns of the studied river were emphasized by a complex technique that includes decomposition models of the series into trends, seasonal indices, and random components, as well as into Intrinsic Mode Functions (IMFs). The Mann–Kendall trend test indicates the existence of different positive slopes for the subseries S1 and S2 (before and after the inception of the Siriu dam, respectively) built from the raw series, S. The stationarity hypothesis was rejected for all series. The multifractal analysis shows two different patterns of the data series. After decomposing the subseries S1 and S2, it resulted that the seasonality indices are not the same. Moreover, the seasonal variations decreased after building the dam. Empirical Mode Decomposition (EMD) unveils different short- and long-term patterns of the series before and after building the dam, concluding that there is a significant alteration in the river discharge after the dam’s inception.https://www.mdpi.com/2073-4441/16/6/808monthly water discharge seriesdecomposition modelseasonal componentsempirical mode decomposition |
| spellingShingle | Alina Bărbulescu Nayeemuddin Mohammed Study of the River Discharge Alteration Water monthly water discharge series decomposition model seasonal components empirical mode decomposition |
| title | Study of the River Discharge Alteration |
| title_full | Study of the River Discharge Alteration |
| title_fullStr | Study of the River Discharge Alteration |
| title_full_unstemmed | Study of the River Discharge Alteration |
| title_short | Study of the River Discharge Alteration |
| title_sort | study of the river discharge alteration |
| topic | monthly water discharge series decomposition model seasonal components empirical mode decomposition |
| url | https://www.mdpi.com/2073-4441/16/6/808 |
| work_keys_str_mv | AT alinabarbulescu studyoftheriverdischargealteration AT nayeemuddinmohammed studyoftheriverdischargealteration |