Analysis of dam-induced cyclic patterns on river flow dynamics
| العنوان: | Analysis of dam-induced cyclic patterns on river flow dynamics |
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| المؤلفون: | Hakan Tongal, Mehmet C. Demirel, Hamid Moradkhani |
| المصدر: | Hydrological Sciences Journal. 62:626-641 |
| بيانات النشر: | Informa UK Limited, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Hydrology, biology, Wavelet coherence, 0208 environmental biotechnology, 02 engineering and technology, STREAMS, biology.organism_classification, 020801 environmental engineering, Change-Point Analysis, Streamflow, Cross wavelet transform, Environmental science, Water cycle, Flathead, reproductive and urinary physiology, Phase relationship, Water Science and Technology |
| الوصف: | This paper investigates the impact of the Hungry Horse Dam on streamflow dynamics in the South Fork of the Flathead River, Montana, USA. To this end, pre- and post-dam periods of raw and naturalized streamflow data were analysed. Pettitt’s change point analysis indicated a significant change point in streamflow dynamics due to dam construction. Complexities in the pre- and post-dam periods were evaluated by sample and multi-scale entropy analyses, and the entropies of the post-dam period were found to be higher than those of the pre-dam period. Possible reasons for this, unrelated to the natural hydrological cycle caused by the dam, were analysed using wavelet analyses. The wavelet analyses showed a clear change in the phase relationship between precipitation and streamflow. Finally, weak positive trends found in the hydrological variables indicated the effects of human activities (e.g. dam construction). The results also revealed distorted lead times, which can improve the streamflow forecasts fo... |
| تدمد: | 2150-3435 0262-6667 |
| DOI: | 10.1080/02626667.2016.1252841 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::cb47d8374f8e37262eaf99b0e23ece32 https://doi.org/10.1080/02626667.2016.1252841 |
| رقم الانضمام: | edsair.doi...........cb47d8374f8e37262eaf99b0e23ece32 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21503435 02626667 |
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| DOI: | 10.1080/02626667.2016.1252841 |