[2] Walsh J E. The role of sea ice in climatic variability: Theories and evidence[J]. Atmosphere-Ocean, 21, 229-242(1983).

[3] Barry R G, Serreze M C, Maslanik J A et al. The Arctic Sea Ice-climate system: Observations and modeling[J]. Reviews of Geophysics, 31, 397-422(1993).

[4] Aagaard K, Carmack E C. The role of sea ice and other fresh water in the Arctic circulation[J]. Journal of Geophysical Research: Oceans, 94, 14485-14498(1989).

[6] Screen J A. Climate science: Far-flung effects of Arctic warming[J]. Nature Geoscience, 10, 253-254(2017).

[7] Parkinson C L, Cavalieri D J, Gloersen P et al. Arctic sea ice extents, areas, and trends, 1978-1996[J]. Journal of Geophysical Research, 104, 20837-20856(1999).

[8] Morison J, Aagaard K, Steele M. Recent environmental changes in the Arctic: A review[J]. Arctic, 53, 359-371(2000).

[9] Lewis E L, Jones E P, Lemke P et al. The Freshwater Budget of the Arctic Ocean[C]. Dordrecht: Springer(2000).

[10] Peterson B J, Holmes R M, Mcclelland J W et al. Increasing river discharge to the arctic ocean[J]. Science, 298, 2171-2173(2002).

[11] Magritsky D V, Frolova N L, Evstigneev V M et al. Long-term changes of river water inflow into the seas of the Russian Arctic sector[J]. Polarforschung, 87, 177-194(2018).

[12] White D, Hinzman L, Alessa L et al. The arctic freshwater system: Changes and impacts[J]. Journal of Geophysical Research: Biogeosciences(2007).

[13] Carmack E C, Yamamoto-Kawai M, Haine T W N et al. Freshwater and its role in the Arctic Marine System: Sources, disposition, storage, export, and physical and biogeochemical consequences in the Arctic and global oceans[J]. Journal of Geophysical Research: Biogeosciences, 121, 675-717(2016).

[14] Mcphee M G, Stanton T P, Morison J H et al. Freshening of the upper ocean in the Arctic: Is perennial sea ice disappearing?[J]. Geophysical Research Letters, 25, 1729-1732(1998).

[15] Steele M, Boyd T. Retreat of the cold halocline layer in the Arctic Ocean[J]. Journal of Geophysical Research: Oceans, 103, 10419-10435(1998).

[16] Stokstad E. River flow could derail crucial ocean current[J]. Science(2002).

[17] Vellinga M, Wood R A. Global climatic impacts of a collapse of the atlantic thermohaline circulation[J]. Climatic Change, 54, 251-267(2002).

[19] Bring A, Fedorova I, Dibike Y et al. Arctic terrestrial hydrology: A synjournal of processes, regional effects, and research challenges[J]. Journal of Geophysical Research: Biogeosciences, 121, 621-649(2016).

[20] Bring A, Shiklomanov A, Lammers R B. Pan-Arctic river discharge: Prioritizing monitoring of future climate change hot spots[J]. Earth’s Future, 5, 72-92(2017).

[21] Mcclelland J W, Holmes R M, Peterson B J et al. Increasing river discharge in the Eurasian Arctic: Consideration of dams, permafrost thaw, and fires as potential agents of change[J]. Journal of Geophysical Research: Atmospheres(2004).

[22] Shiklomanov I A, Babkin V I, Balonishnikov Z A. Water resources, their use, and water availability in Russia: Current estimates and forecasts[J]. Water Resources, 38, 139-148(2011).

[23] Gelfan A, Gustafsson D, Motovilov Y et al. Climate change impact on the water regime of two great Arctic rivers: Modeling and uncertainty issues[J]. Climatic Change, 141, 499-515(2017).

[24] Overeem I, Syvitski J P M. Shifting discharge peaks in Arctic rivers, 1977-2007[J]. Geografiska Annaler: Series A, Physical Geography, 92, 285-296(2010).

[25] Johnston S E, Shorina N, Bulygina E et al. Flux and seasonality of dissolved organic matter from the Northern Dvina (Severnaya Dvina) River, Russia[J]. Journal of Geophysical Research: Biogeosciences, 123, 1041-1056(2018).

[26] Bobrovitskaya N N, Kokorev A V, Lemeshko N A. Regional patterns in recent trends in sediment yields of Eurasian and Siberian rivers[J]. Global and Planetary Change, 39, 127-146(2003).

[27] Richter-Menge J, Druckenmiller M L, Jeffries M et al. Arctic Report Card 2019[online]. https://www.arctic.noaa.gov/Report-Card.

[28] Goldman C R, Kumagai M, Robarts R D. Climatic Change and Global Warming of Inland Waters[C]. Chichester: Robarts Wiley-Blackwell(2012).

[29] Lammers R B, Shiklomanov A I, Vörösmarty C J et al. Assessment of contemporary Arctic river runoff based on observational discharge records[J]. Journal of Geophysical Research: Atmospheres, 106, 3321-3334(2001).

[30] Serreze M C, Bromwich D H, Clark M P et al. Large-scale hydro-climatology of the terrestrial Arctic drainage system[J]. Journal of Geophysical Research: Atmospheres(2003).

[31] Yang D, Kane D L, Hinzman L D et al. Siberian Lena River hydrologic regime and recent change[J]. Journal of Geophysical Research: Atmospheres(2002).

[32] Yang D Q, Ye B S, Kane D L. Streamflow changes over Siberian Yenisei River Basin[J]. Journal of Hydrology, 296, 59-80(2004).

[33] Karl T R, Arguez A, Huang B et al. Possible artifacts of data biases in the recent global surface warming hiatus[J]. Science, 348, 1469-1472(2015).

[34] Wu P, Wood R, Stott P. Human influence on increasing Arctic river discharges[J]. Geophysical Research Letters(2005).

[35] Vihma T, Screen J, Tjernström M et al. The atmospheric role in the Arctic water cycle: A review on processes, past and future changes, and their impacts[J]. Journal of Geophysical Research: Biogeosciences, 121, 586-620(2016).

[36] Gatak D, Deser C, Frei A et al. Simulated Siberian snow cover response to observed Arctic sea ice loss, 1979-2008[J]. Journal of Geophysical Research: Atmospheres(2012).

[37] Silverstein R P, Aryal S K, Durrant J et al. Climate change and runoff in south-western Australia[J]. Journal of Hydrology, 475, 441-455(2012).

[38] Lawrence D M, Slater A G. A projection of severe near-surface permafrost degradation during the 21st century[J]. Geophysical Research Letters(2005).

[40] Bulygina O N, Razuvaev V N, Korshunova N N. Changes in snow cover over Northern Eurasia in the last few decades[J]. Environmental Research Letters(2009).

[42] Tananaev N I, Makarieva O M, Lebedeva L S. Trends in annual and extreme flows in the Lena River basin, Northern Eurasia[J]. Geophysical Research Letters, 43, 10764-10772(2016).

[43] Brown R D, Derksen C. Is Eurasian October snow cover extent increasing?[J]. Environmental Research Letters(2013).

[45] Beltaos S, Prowse T. River-ice hydrology in a shrinking cryosphere[J]. Hydrological Processes, 23, 122-144(2009).

[46] Rawlins M A, Steele M, Holland M M et al. Analysis of the arctic system for freshwater cycle intensification: Observations and expectations[J]. Journal of Climate, 23, 5715-5737(2010).

[47] Zhang K, Kimball J S, Mu Q et al. Satellite based analysis of northern ET trends and associated changes in the regional water balance from 1983 to 2005[J]. Journal of Hydrology, 379, 92-110(2009).

[48] Koronkevich N I, Barabanova E A, Georgiadi A G et al. Anthropogenic impacts on the water resources of the Russian Arctic Basin Rivers[J]. Geography and Natural Resources, 40, 22-29(2019).

[49] Magritskii D V. Anthropogenic impact on the runoff of Russian rivers emptying into the Arctic Ocean[J]. Water Resources, 35, 1-14(2008).

[50] Avakyan A B, Sharapov V A. Reservoirs of hydroelectric stations of the USSR[J]. Hydrotechnical Construction, 4, 375-380(1970).