Export citation and abstract BibTeX RIS
Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
After this paper was published, one of the readers of our paper pointed out that CA-Est and FI-Van did not have any Twater data. Therefore, for each panel in figure 4, the mutual information score for Twater and CA-Est will now be replaced with a white color. The same will be carried out for Twater and FI-Van. A brief sentence has also been added at the end of the figure 4 caption to indicate lack of Twater data for CA-Est and FI-Van. This correction does not affect our results. We apologize for any inconvenience these errors may have caused.
Figure 4. Mutual information analysis between NEE and biophysical variables on hourly (A), diel (B), multi-day (C), and seasonal (D) scales. The vertical axis lists each site colored by nutrient level (red, blue, and green indicate oligotrophic, mesotrophic, and eutrophic lakes and reservoirs respectively), while the x-axis shows drivers listed from left to right as air temperature, water temperature, latent heating, sensible heating, friction velocity, and net radiation. High mutual information score (MIS) is represented by dark blue (large NEE predictability) and low MIS is represented by white and light blue (low NEE predictability). Note that there was no Twater data for CA-Est and FI-Van.
Download figure:
Standard image High-resolution image
Acknowledgments
We thank all project participants for kindly sharing data and time. All flux tower data and code for processing data will be publicly available in the Environmental Data Initiative depository (https://doi.org/10.6073/pasta/87a35ca843d8739d75882520c724e99e). MG and ARD acknowledge support from the U.S. National Science Foundation North Temperate Lakes LTER (NSF DEB-1440297, NTL LTER). Funding for US-UM3 was provided by the U.S. Department of Energy's Office of Science. IM and TV thank the support by the EU-Horizon Europe project 101056921—GreenFeedBack and Academy Professor projects (312571 and 282842). IM, TV and AL thank the support from the ACCC Flagship funded by the Academy of Finland (337549 and 337552) and ICOS-Finland by University of Helsinki and the Ministry of Transport and Communication. GAW was financially supported by the Swedish Research Council (VR: Grant Nos. 2016-04153 and 2020-03222). The deployment of the EC at the Nam Theun 2 Reservoir (Lao PDR) was funded by Electricité de France (EDF) and Nam Theun Power Company (NTPC). TS and FK were supported by the Helmholtz Association of German Research Centres through grants to TS (Grant VH-NG-821) and FK (Grant PD-129), the Helmholtz Climate Initiative REKLIM (Regional Climate Change), and infrastructure funding through the Terrestrial Environmental Observatories Network (TERENO). TS and FK thank the (staff of the) Department Chemical Analytics and Biogeochemistry at the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (Berlin) for providing water chemistry data for DE-Zrk. WE and GK acknowledge support from NSF-DEB 1637459 and OPP 1936769. The deployment of the flux tower at CA-Eastmain was supported by Hydro Quebec. Flux observations at US-OWC were funded by the Ohio Department of Natural Resources, by NOAA's National Estuarine Research Reserves' Davidson Fellowship, and by US Department of Energy awards DE-SC0021067 and DE-SC0022191. The co-authors express gratitude for the kindness and contributions of posthumous co-author Werner Eugster.
We thank He Xiangqi from Beijing Normal University for bringing these errors to our attention.