Abstract
The quality of lake ice is of uppermost importance for ice safety and under-ice ecology, but its temporal and spatial variability is largely unknown. Here we conducted a coordinated lake ice quality sampling campaign across the Northern Hemisphere during one of the warmest winters since 1880 and show that lake ice during 2020/2021 commonly consisted of unstable white ice, at times contributing up to 100% to the total ice thickness. We observed that white ice increased over the winter season, becoming thickest and constituting the largest proportion of the ice layer towards the end of the ice cover season when fatal winter drownings occur most often and light limits the growth and reproduction of primary producers. We attribute the dominance of white ice before ice-off to air temperatures varying around the freezing point, a condition which occurs more frequently during warmer winters. Thus, under continued global warming, the prevalence of white ice is likely to substantially increase during the critical period before ice-off, for which we adjusted commonly used equations for human ice safety and light transmittance through ice.
Original language | English (US) |
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Article number | 4974 |
Journal | Nature communications |
Volume | 13 |
Issue number | 1 |
DOIs | |
State | Published - Dec 2022 |
Bibliographical note
Funding Information:The work was carried out within the Global Lake Ecological Observatory Network (GLEON). G.A.W., H.R. and E.J. received financial support for this study from the Swedish Research Council (Grant no. 2020-03222) and Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS; Grant no. 2020-01091). A.L. was funded by the Estonian Research Council (grants PSG32, PRG709). G.Z., R.Z. and N.P. conducted sampling within the framework of the project FMEN-2021-0019 of the state assignment of the Russian Federation. G.Z., R.Z. and I.F. received financial support for field measurements from Russian FBR (Grant no. 18-05-60291). J.M.F. received funding from the National Science Foundation (NSF-DEB 1754181) and thanks the Parks Canada Agency for permission to conduct research in the national mountain parks of Canada. Sampling of Falling Creek Reservoir was supported by NSF DEB-1753639. For practical and technical support we would like to thank Adrienne Breef-Pilz, Andrey Mitrokhov, Anni Karppinen, Benton Fry, Maria Chernyshova, Mark H. Olson, Matthew Futia, Mattia Domenici, Michael Sachtleben, Monika Degebrodt, Olivia Johnson, Stefano Rioggi, Solvig Pinnow, Thomas Buhl and Uta Mallock. All ice quality observation data from Bagot Long Lake were kindly measured and provided by William Allison. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Funding Information:
The work was carried out within the Global Lake Ecological Observatory Network (GLEON). G.A.W., H.R. and E.J. received financial support for this study from the Swedish Research Council (Grant no. 2020-03222) and Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS; Grant no. 2020-01091). A.L. was funded by the Estonian Research Council (grants PSG32, PRG709). G.Z., R.Z. and N.P. conducted sampling within the framework of the project FMEN-2021-0019 of the state assignment of the Russian Federation. G.Z., R.Z. and I.F. received financial support for field measurements from Russian FBR (Grant no. 18-05-60291). J.M.F. received funding from the National Science Foundation (NSF-DEB 1754181) and thanks the Parks Canada Agency for permission to conduct research in the national mountain parks of Canada. Sampling of Falling Creek Reservoir was supported by NSF DEB-1753639. For practical and technical support we would like to thank Adrienne Breef-Pilz, Andrey Mitrokhov, Anni Karppinen, Benton Fry, Maria Chernyshova, Mark H. Olson, Matthew Futia, Mattia Domenici, Michael Sachtleben, Monika Degebrodt, Olivia Johnson, Stefano Rioggi, Solvig Pinnow, Thomas Buhl and Uta Mallock. All ice quality observation data from Bagot Long Lake were kindly measured and provided by William Allison. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Publisher Copyright:
© 2022, The Author(s).
PubMed: MeSH publication types
- Journal Article
- Research Support, Non-U.S. Gov't
- Research Support, U.S. Gov't, Non-P.H.S.