Figure 1 : Interannual variability in hydrologic components of the Laurentian Great Lakes. a) Interannual variability of Lake Superior lake levels calculated as the standard deviation over a 13-year moving window (m; black scatter). The trend in interannual variability from 1970 to 2020 as determined by a Trend-Free Pre-Whitened Mann-Kendall trend test is also shown (black line). b) Same as a but for lake surface area-averaged interannual variability of precipitation (mm; medium blue). c) Same as b but for evaporation (mm; light blue). d) Same as b but for runoff (mm; dark blue) from 1970-2019. e-h) Same as a-d but for Lake Michigan-Huron. i-l) Same as a-d but for Lake Erie. m-p) Same as a-d but for Lake Ontario.