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Deeper waters are changing less consistently than surface waters in a global analysis of 102 lakes

Pilla, Rachel M. (author)
Miami Univ, Dept Biol, Oxford, OH 45056 USA
Williamson, Craig E. (author)
Adamovich, Boris V. (author)
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Adrian, Rita (author)
Anneville, Orlane (author)
Chandra, Sudeep (author)
Colom-Montero, William (author)
Uppsala universitet,Limnologi
Devlin, Shawn P. (author)
Dix, Margaret A. (author)
Dokulil, Martin T. (author)
Gaiser, Evelyn E. (author)
Girdner, Scott F. (author)
Hambright, K. David (author)
Hamilton, David P. (author)
Havens, Karl (author)
Hessen, Dag O. (author)
Higgins, Scott N. (author)
Huttula, Timo H. (author)
Huuskonen, Hannu (author)
Isles, Peter D. F. (author)
Joehnk, Klaus D. (author)
Jones, Ian D. (author)
Keller, Wendel Bill (author)
Knoll, Lesley B. (author)
Korhonen, Johanna (author)
Kraemer, Benjamin M. (author)
Leavitt, Peter R. (author)
Lepori, Fabio (author)
Luger, Martin S. (author)
Maberly, Stephen C. (author)
Melack, John M. (author)
Melles, Stephanie J. (author)
Müller-Navarra, Dörthe C. (author)
Pierson, Don C. (author)
Uppsala universitet,Limnologi
Pislegina, Helen V. (author)
Plisnier, Pierre-Denis (author)
Richardson, David C. (author)
Rimmer, Alon (author)
Rogora, Michela (author)
Rusak, James A. (author)
Sadro, Steven (author)
Salmaso, Nico (author)
Saros, Jasmine E. (author)
Saulnier-Talbot, Émilie (author)
Schindler, Daniel E. (author)
Schmid, Martin (author)
Shimaraeva, Svetlana V. (author)
Silow, Eugene A. (author)
Sitoki, Lewis M. (author)
Sommaruga, Ruben (author)
Straile, Dietmar (author)
Strock, Kristin E. (author)
Thiery, Wim (author)
Timofeyev, Maxim A. (author)
Verburg, Piet (author)
Vinebrooke, Rolf D. (author)
Weyhenmeyer, Gesa A. (author)
Uppsala universitet,Limnologi
Zadereev, Egor (author)
Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia
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 (creator_code:org_t)
2020-11-25
2020
English.
In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 10:1
Related links:
https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
https://www.nature.c...
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Globally, lake surface water temperatures have warmed rapidly relative to air temperatures, but changes in deepwater temperatures and vertical thermal structure are still largely unknown. We have compiled the most comprehensive data set to date of long-term (1970–2009) summertime vertical temperature profiles in lakes across the world to examine trends and drivers of whole-lake vertical thermal structure. We found significant increases in surface water temperatures across lakes at an average rate of + 0.37 °C decade−1, comparable to changes reported previously for other lakes, and similarly consistent trends of increasing water column stability (+ 0.08 kg m−3 decade−1). In contrast, however, deepwater temperature trends showed little change on average (+ 0.06 °C decade−1), but had high variability across lakes, with trends in individual lakes ranging from − 0.68 °C decade−1 to + 0.65 °C decade−1. The variability in deepwater temperature trends was not explained by trends in either surface water temperatures or thermal stability within lakes, and only 8.4% was explained by lake thermal region or local lake characteristics in a random forest analysis. These findings suggest that external drivers beyond our tested lake characteristics are important in explaining long-term trends in thermal structure, such as local to regional climate patterns or additional external anthropogenic influences.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)

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art (subject category)

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