TY - JOUR

T1 - Flow regime alteration in Arctic rivers due to dam operations and climate change

AU - Patro, Epari Ritesh

AU - Ghadimi, Sahand

AU - Shahrood, Abolfazl Jalali

AU - Fazel, Nasim

AU - Makarieva, Olga

AU - Haghighi, Ali Torabi

PY - 2024/6/1

Y1 - 2024/6/1

N2 - Arctic rivers and water resources currently experience significant hydrological changes due to climate change and global warming. The flow regime alteration in Arctic rivers strongly influences the conservation and sustainability of the native biodiversity of the riverine ecosystem. The change in major characteristics of the daily and monthly flow regime of seven arctic rivers has been assessed in this study. The daily flow (40–120 years) at the outlet of Lena River, Yenisey River, Kolyma River, and Ob’ River in Russia; Yukon River in the USA; Mackenzie River in Canada; and Tana River, Norway was used. Except for the Tana River, the rest of these rivers have been regulated. In addition, monthly flow alteration in the headwater of these rivers and below sixteen dams was assessed. In this research, we applied ‘Indicator of Hydrologic Alteration’ (IHA) and ‘River Impact’ (RI) methods to estimate daily monthly flow change in the river. Based on the daily analysis, the most significant change was observed for Yenisey and Ob rivers. The Kolyma hydropower shows the lowest impact, while the Shushenskaya Dam on Yenisey shows the highest impact on the flow regime.

AB - Arctic rivers and water resources currently experience significant hydrological changes due to climate change and global warming. The flow regime alteration in Arctic rivers strongly influences the conservation and sustainability of the native biodiversity of the riverine ecosystem. The change in major characteristics of the daily and monthly flow regime of seven arctic rivers has been assessed in this study. The daily flow (40–120 years) at the outlet of Lena River, Yenisey River, Kolyma River, and Ob’ River in Russia; Yukon River in the USA; Mackenzie River in Canada; and Tana River, Norway was used. Except for the Tana River, the rest of these rivers have been regulated. In addition, monthly flow alteration in the headwater of these rivers and below sixteen dams was assessed. In this research, we applied ‘Indicator of Hydrologic Alteration’ (IHA) and ‘River Impact’ (RI) methods to estimate daily monthly flow change in the river. Based on the daily analysis, the most significant change was observed for Yenisey and Ob rivers. The Kolyma hydropower shows the lowest impact, while the Shushenskaya Dam on Yenisey shows the highest impact on the flow regime.

KW - Arctic rivers

KW - Climate change

KW - Flow regime indicators

KW - Human impact

KW - Hydropower

KW - River ice

KW - River regulation

UR - https://www.mendeley.com/catalogue/4b383a09-f8ba-3473-b7cd-214aa2690938/

U2 - 10.1016/j.gloplacha.2024.104442

DO - 10.1016/j.gloplacha.2024.104442

M3 - Article

VL - 237

JO - Global and Planetary Change

JF - Global and Planetary Change

SN - 0921-8181

M1 - 104442

ER -