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. 2021 Mar 16;12:1688. doi: 10.1038/s41467-021-21971-1

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Fig. 1 — Three decades of high-frequency subsurface temperature measurements (1990—present) are recorded by a thermistor string at the southern Lake Michigan mooring site. Observations of atmospheric conditions are recorded at several coastal meteorological stations (gray circles) archived by NOAA. Long-term downward shortwave radiation is measured by the NOAA Surface Radiation (SURFRAD) Network (white circle) in Bondville, IL, USA.