Hydropower impact on the river flow of a humid regional climate

Hunt, Julian David; Falchetta, Giacomo; Zakeri, Behnam; Nascimento, Andreas; Schneider, Paulo Smith; Weber, Natália de Assis Brasil; Mesquita, André Luiz Amarante; Barbosa, Paulo Sérgio Franco; Castro, Nivalde José de

doi:10.1007/s10584-020-02828-w

Cited by 12 publications

(12 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high heat capacity of water makes large water bodies powerful heat reservoirs that can delay and decrease in magnitude the air temperature fluctuations 9 , 18 . Evaporation from a vast water surface can contribute to the moisture content of the air, and breeze winds can affect the circulation of air masses and generation of precipitation 34 . Our results show significant temporal changes in the air-temperature regime in the impact zone of both the Krasnoyarsk and Sayano-Shushensky reservoirs.…”

Section: Discussionmentioning

confidence: 99%

Climate change and tree growth in the Khakass-Minusinsk Depression (South Siberia) impacted by large water reservoirs

Zhirnova

Belokopytova

Meko

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Regional and local climate change depends on continentality, orography, and human activities. In particular, local climate modification by water reservoirs can reach far from shore and downstream. Among the possible ecological consequences are shifts in plant performance. Tree-ring width of affected trees can potentially be used as proxies for reservoir impact. Correlation analysis and t-tests were applied to climatic data and tree-ring chronologies of Pinus sylvestris L. and Larix sibirica Ledeb. from moisture-deficit habitats in the intermontane Khakass-Minusinsk Depression, to assess modification of climate and tree growth by the Krasnoyarsk and Sayano-Shushenskoe Reservoirs on the Yenisei River. Abrupt significant cooling in May–August and warming in September-March occurred after the launch of the turbines in dams, more pronounced near the Sayano-Shushenskoe dam (up to – 0.5 °C in summer and to + 3.5 °C in winter) than near the Krasnoyarsk Reservoir headwaters (– 0.3 °C and + 1.4 °C). Significant lengthening of the warm season was also found for temperature thresholds 0–8 °C. Shifts of seasonality and intensity occurred in climatic responses of all tree-ring chronologies after development of water reservoirs. Patterns of these shifts, however, depended on species-specific sensitivity to climatic modification, distance from reservoirs, and physiographic regions. Mitigation of climate continentality and extremes by reservoirs appears to have offset possible negative effects of warming on tree growth.

show abstract

Section: Discussionmentioning

confidence: 99%

Climate change and tree growth in the Khakass-Minusinsk Depression (South Siberia) impacted by large water reservoirs

Zhirnova

Belokopytova

Meko

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Many research projects have been conducted on the climate change impacts on generation of hydropower (Markoff and Cullen, 2008;Madani and Lund, 2010;Hamududu and Killingtveit, 2012;Gaudard et al, 2013;Viola et al, 2015;Arango-Aramburo et al, 2019). On the other hand, only a few research papers on the impacts of hydropower reservoirs on climate change have been published (Wu et al, 2012;Song et al, 2017;Balagizi et al, 2018) because the surface area covered by hydropower reservoirs is low globally (Hunt et al, 2020). The hydropower generation is projected to grow by 75% globally from 2008 to 2050 in the business as usual case while with aggressive actions aimed at reducing the greenhouse gas (GHG) emissions, it could grow by approximately 85% during the same period (Hamududu and Killingtveit, 2017).…”

Section: Impacts Of Climate Change On Hydropower Generationmentioning

confidence: 99%

“…The simulated changes by these models are done on the basis of a set of anthropogenic (human caused) forcing scenarios. The Representative Concentration Pathways (RCPs) which is a new set of scenarios has been applied for the recent simulations by climate modelling which were carried out under the framework of the Coupled Model Intercomparison Project Phase 5 (CMIP5) by Land use may substantially affect the precipitation and climate regionally (Hunt et al, 2020). These impacts can vary to a larger scale.…”

Section: Development Of Climate Modellingmentioning

confidence: 99%

“…For instance, precipitation patterns can be affected by converting forest land into agricultural farms (Li et al, 2009;Adnana and Atkinson, 2011;Price, 2011;Hunt et al, 2020), the regional average temperatures can be affected by deforestation (Bonan, 1997;Hunt et al, 2020) alongside other impacts (DeAngelis et al, 2010;Mueller et al, 2016;Chen and Dirmeyer, 2017). Besides land use changes, the regional climate can also be affected by water consumption patterns through evapotranspiration (Hunt and Leal Filho, 2018;Liu et al, 2018;Zou et al, 2018;Hunt et al, 2020). Therefore, water and land management practices have a major influence on climate patterns regionally (Betts, 2001;Tomer and Schilling, 2009).…”

Section: Development Of Climate Modellingmentioning

confidence: 99%

“…Therefore, water and land management practices have a major influence on climate patterns regionally (Betts, 2001;Tomer and Schilling, 2009). The relationship between climate patterns and land and water management are being proposed as one of the effective regional adaptation measures to manage global warming (Hirsch et al, 2017;Hunt et al, 2020) and to be incorporated into climate models (Li et al, 2018).…”

Section: Development Of Climate Modellingmentioning

confidence: 99%

See 2 more Smart Citations

An analytical assessment of climate change trends and their impacts on hydropower in Sondu Miriu River Basin, Kenya

Ochieng¹,

Oludhe²,

Dulo³

et al. 2021

Afr. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Hydropower is cost effective environment friendly and worldwide proven sustainable energy source. Driven by streamflow stream flows, it is vulnerable to climate change and land use change. The hydropower production from the two-existing run-of-river hydropower projects on the Sondu Miriu River are vulnerable to rainfall variability and requires proper understanding of the climate change trends and policies to support sustainable hydropower development and put in place strategies for building resilience for the local communities. The objective of this paper is to examine climate change trends and their impacts on hydropower in the Sondu Miriu River basin. The methodology involved analysis of downscaled climate data from CORDEX for the period from 1950 to 2100, gridded data from Kenya Meteorological department for a period of 2007 to 2018, river flows data from Water Resources Authority for a period of 2007 to 2018 and hydropower output data from KenGen for a period of 2007 to 2018 to examine the climate change trends within the Sondu Miriu River basin and impacts on hydrology and hydropower. The results indicate that maximum and minimum annual temperature increased by 0.7 and 0.9°C, respectively between 1950 and 2005. Both the maximum and minimum annual temperatures are projected to increase by 1.9°C based on the RCP4.5 and RCP8.5 scenarios between 2006 and 2100 within the Sondu Miriu basin. Annual rainfall increased by 74.8 mm between 1950 and 2005. This is projected to increase by 24.7 and 117.8 mm based on RCP4.5 and RCP8.5 scenarios, respectively. For the period between 2007 and 2018, the observed maximum increased by 5°C while the minimum temperatures decreased by 1°C. The rainfall decreased by 193.14 mm while the mean daily river flows decreased by 0.3 m 3 /s annually during the same period. This resulted in the decrease of hydropower production by 8.3 GWh in Sondu Miriu HPP between 2007 and 2018 while the production reduced by 14.18 GWh for Sang'oro HPP between 2012 and 2018. Understanding climate change trends within Sondu Miriu River basin should guide the planning for hydropower development projects.

show abstract

Hydrological Response and Ecological Flow Optimization in Water Diversion Area of Inter-basin Water Diversion Project

Bai

Sun

Wei

et al. 2022

Water Resour Manage

View full text Add to dashboard Cite

：To quantify the impact of inter-basin water transfer project on hydrological and ecological environment of downstream river, taking Hanjiang-to-Weihe inter-basin water transfer project in the initial operation period for example, hydrological response and ecological flow optimization in water diversion area after water transfer are discussed in this paper. Firstly, Multi-year reservoir operation model of "Sanhekou" is established by MIKE BASIN. Hydrological indicators system construct by Indicators of Hydrologic Alteration (IHA) and Range of Variability Approach (RVA). Then, verify change degree of hydrologic response before and after the reservoir is built. Moreover, 33 hydrological indicators in IHA consist of five groups to quantitatively evaluate the change degree of hydrological indicators. Finally, seven schemes of different ecological flow processes are set, and the optimal scheme is recommended by AHP. Considering ecological flow management, propose improvement measures from both engineering and non-engineering aspects. The results show that: (1) MIKE BASIN simulation results and design results have a high degree of fit, which verifies rationality of the model; (2) The overall hydrological change of the river is 72.91%, and hydrological response of the river lead to highly change; (3) Scheme 6 reduces overall change degree of hydrology to (56.63%) middle change under premise of less impact on economic benefits, recommended Scheme 6 as the optimal scheme. The research results not only provide important guidance and reference for maintenance and protection of ecological functions of rivers, but also the actual operation of reservoirs.

show abstract

Hydropower impact on the river flow of a humid regional climate

Cited by 12 publications

References 53 publications

Climate change and tree growth in the Khakass-Minusinsk Depression (South Siberia) impacted by large water reservoirs

Climate change and tree growth in the Khakass-Minusinsk Depression (South Siberia) impacted by large water reservoirs

An analytical assessment of climate change trends and their impacts on hydropower in Sondu Miriu River Basin, Kenya

Hydrological Response and Ecological Flow Optimization in Water Diversion Area of Inter-basin Water Diversion Project

Contact Info

Product

Resources

About