Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming
Abstract
In this paper we assessed changes in scaling properties of the river Danube level and flow data, associated with building of Djerdap/Iron Gates hydrological power plants positioned on the border of Romania and Serbia. We used detrended fluctuation analysis (DFA), wavelet transform spectral analysis (WTS) and wavelet modulus maxima method (WTMM) to investigate time series of measurements from hydrological stations in the vicinity of dams and in the area of up to 480 km upstream from dams, and time series of simulated NOAA-CIRES 20th Century Global Reanalysis precipitation data for the Djerdap/Iron Gates region. By comparing river dynamics during the periods before and after construction of dams, we were able to register changes in scaling that are different for recordings from upstream and from downstream (from dams) areas. We found that damming caused appearance of human-made or enhancement of natural cycles in the small time scales region, which largely influenced the change in tempor...al scaling in downstream recording stations. We additionally found disappearance or decline in the amplitude of large-time-scale cycles as a result of damming, which changed the dynamics of upstream data. The most prominent finding of our paper is a demonstration of a complete or partial loss of annual cycles in the upstream stations' data that stems from the operation of the artificial water reservoir and extends as far as 220 km from dams. We discussed probable sources of such found changes in scaling, aiming to provide explanations that could be of use in future environmental assessments.
Keywords:
River level and flow / Hydro-power plants / Scaling analysis / Natural cyclesSource:
Physica A-Statistical Mechanics & its Applications, 2021, 566, 125607-Publisher:
- Elsevier, Amsterdam
Funding / projects:
- Uncovering information in fluctuating CLimate systems: An oppoRtunity for solving climate modeling nodes and assIst local communiTY adaptation measures (CLARITY) (EU-701785)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200015 (University of Belgrade, Institute for Medical Research) (RS-200015)
DOI: 10.1016/j.physa.2020.125607
ISSN: 0378-4371
WoS: 000606812800013
Scopus: 2-s2.0-85097582729
Collections
Institution/Community
Institut za medicinska istraživanjaTY - JOUR AU - Stratimirović, Đorđe AU - Batas-Bjelić, Ilija AU - Đurđević, Vladimir AU - Blesić, Suzana PY - 2021 UR - http://rimi.imi.bg.ac.rs/handle/123456789/1075 AB - In this paper we assessed changes in scaling properties of the river Danube level and flow data, associated with building of Djerdap/Iron Gates hydrological power plants positioned on the border of Romania and Serbia. We used detrended fluctuation analysis (DFA), wavelet transform spectral analysis (WTS) and wavelet modulus maxima method (WTMM) to investigate time series of measurements from hydrological stations in the vicinity of dams and in the area of up to 480 km upstream from dams, and time series of simulated NOAA-CIRES 20th Century Global Reanalysis precipitation data for the Djerdap/Iron Gates region. By comparing river dynamics during the periods before and after construction of dams, we were able to register changes in scaling that are different for recordings from upstream and from downstream (from dams) areas. We found that damming caused appearance of human-made or enhancement of natural cycles in the small time scales region, which largely influenced the change in temporal scaling in downstream recording stations. We additionally found disappearance or decline in the amplitude of large-time-scale cycles as a result of damming, which changed the dynamics of upstream data. The most prominent finding of our paper is a demonstration of a complete or partial loss of annual cycles in the upstream stations' data that stems from the operation of the artificial water reservoir and extends as far as 220 km from dams. We discussed probable sources of such found changes in scaling, aiming to provide explanations that could be of use in future environmental assessments. PB - Elsevier, Amsterdam T2 - Physica A-Statistical Mechanics & its Applications T1 - Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming SP - 125607 VL - 566 DO - 10.1016/j.physa.2020.125607 UR - conv_4955 ER -
@article{ author = "Stratimirović, Đorđe and Batas-Bjelić, Ilija and Đurđević, Vladimir and Blesić, Suzana", year = "2021", abstract = "In this paper we assessed changes in scaling properties of the river Danube level and flow data, associated with building of Djerdap/Iron Gates hydrological power plants positioned on the border of Romania and Serbia. We used detrended fluctuation analysis (DFA), wavelet transform spectral analysis (WTS) and wavelet modulus maxima method (WTMM) to investigate time series of measurements from hydrological stations in the vicinity of dams and in the area of up to 480 km upstream from dams, and time series of simulated NOAA-CIRES 20th Century Global Reanalysis precipitation data for the Djerdap/Iron Gates region. By comparing river dynamics during the periods before and after construction of dams, we were able to register changes in scaling that are different for recordings from upstream and from downstream (from dams) areas. We found that damming caused appearance of human-made or enhancement of natural cycles in the small time scales region, which largely influenced the change in temporal scaling in downstream recording stations. We additionally found disappearance or decline in the amplitude of large-time-scale cycles as a result of damming, which changed the dynamics of upstream data. The most prominent finding of our paper is a demonstration of a complete or partial loss of annual cycles in the upstream stations' data that stems from the operation of the artificial water reservoir and extends as far as 220 km from dams. We discussed probable sources of such found changes in scaling, aiming to provide explanations that could be of use in future environmental assessments.", publisher = "Elsevier, Amsterdam", journal = "Physica A-Statistical Mechanics & its Applications", title = "Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming", pages = "125607", volume = "566", doi = "10.1016/j.physa.2020.125607", url = "conv_4955" }
Stratimirović, Đ., Batas-Bjelić, I., Đurđević, V.,& Blesić, S.. (2021). Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming. in Physica A-Statistical Mechanics & its Applications Elsevier, Amsterdam., 566, 125607. https://doi.org/10.1016/j.physa.2020.125607 conv_4955
Stratimirović Đ, Batas-Bjelić I, Đurđević V, Blesić S. Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming. in Physica A-Statistical Mechanics & its Applications. 2021;566:125607. doi:10.1016/j.physa.2020.125607 conv_4955 .
Stratimirović, Đorđe, Batas-Bjelić, Ilija, Đurđević, Vladimir, Blesić, Suzana, "Changes in long-term properties and natural cycles of the Danube river level and flow induced by damming" in Physica A-Statistical Mechanics & its Applications, 566 (2021):125607, https://doi.org/10.1016/j.physa.2020.125607 ., conv_4955 .