#In deeper waters summary drivers

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. In contrast, however, deepwater temperature trends showed little change on average (+ 0.06 ☌ decade−1), but had high variability across lakes, with trends in individual lakes ranging from − 0.68 ☌ decade−1 to + 0.65 ☌ decade−1. We found significant increases in surface water temperatures across lakes at an average rate of + 0.37 ☌ 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 deeper waters summary drivers

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. 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. Zadereev, Egor.ĭeeper waters are changing less consistently than surface waters in a global analysis of 102 lakes.īefore downloading, please read NORA policies. Sommaruga, Ruben Straile, Dietmar Strock, Kristin E. Saulnier-Talbot, Émilie Schindler, Daniel E. Sadro, Steven Salmaso, Nico Saros, Jasmine E. Rimmer, Alon Rogora, Michela Rusak, James A. Plisnier, Pierre-Denis Richardson, David C. Adrian, Rita Anneville, Orlane Chandra, Sudeep Colom-Montero, William Devlin, Shawn P.