Articles | Volume 26, issue 23
https://doi.org/10.5194/hess-26-6185-2022
https://doi.org/10.5194/hess-26-6185-2022
Research article
 | 
09 Dec 2022
Research article |  | 09 Dec 2022

Assessing the influence of lake and watershed attributes on snowmelt bypass at thermokarst lakes

Evan J. Wilcox, Brent B. Wolfe, and Philip Marsh

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Cited articles

Arp, C. D., Jones, B. M., Lu, Z., and Whitman, M. S.: Shifting balance of thermokarst lake ice regimes across the Arctic Coastal Plain of northern Alaska, Geophys. Res. Lett., 39, L16503, https://doi.org/10.1029/2012GL052518, 2012. a
Arp, C. D., Jones, B. M., Liljedahl, A. K., Hinkel, K. M., and Welker, J. A.: Depth, ice thickness, and ice-out timing cause divergent hydrologic responses among Arctic lakes, Water Resour. Res., 51, 9379–9401, https://doi.org/10.1016/0022-1694(68)90080-2, 2015. a, b
Balasubramaniam, A. M., Hall, R. I., Wolfe, B. B., Sweetman, J. N., and Wang, X.: Source water inputs and catchment characteristics regulate limnological conditions of shallow subarctic lakes (Old Crow Flats, Yukon, Canada), Can. J. Fish. Aquat. Sci., 72, 1058–1072, https://doi.org/10.1139/cjfas-2014-0340, 2015. a, b, c, d
Bergmann, M. A. and Welch, H. E.: Spring Meltwater Mixing in Small Arctic Lakes, Can. J. Fish. Aquat. Sci., 42, 1789–1798, https://doi.org/10.1139/f85-224, 1985. a, b, c, d
Bintanja, R. and Andry, O.: Towards a rain-dominated Arctic, Nat. Clim. Change, 7, 263–267, https://doi.org/10.1038/nclimate3240, 2017. a, b, c
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Short summary
We estimated how much of the water flowing into lakes during snowmelt replaced the pre-snowmelt lake water. Our data show that, as lake depth increases, the amount of water mixed into lakes decreased, because vertical mixing is reduced as lake depth increases. Our data also show that the water mixing into lakes is not solely snow-sourced but is a mixture of snowmelt and soil water. These results are relevant for lake biogeochemistry given the unique properties of snowmelt runoff.
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