Substantial increase in minimum lake surface temperatures under climate change

Table 1 General characteristics of the lakes from which lake surface water temperatures were used in this study. Shown are the names of each lake, their latitude, longitude, elevation, mean depth, surface area, the rate of change in annual minimum lake surface temperature (T_min), and the rate of change in July–September average lake surface temperatures (T_JAS). Also, shown are the 95% CI of the calculated trends. Lake temperature trends are based on observations available from 1973 to 2014, the years for which all lakes had available data

Lake	Latitude (°N)	Longitude (°E)	Elevation (m)	Mean depth (m)	Area (km²)	T_min (°C decade⁻¹)	T_JAS (°C decade⁻¹)
Blelham Tarn, UK	54.39	− 2.98	41	6.8	0.1	0.45 (0.17, 0.73)	0.22 (− 0.10, 0.54)
Esthwaite Water, UK	54.36	− 2.99	65	6.4	1.0	0.40 (0.11, 0.70)	0.28 (− 0.02, 0.59)
Feeagh, Ireland	53.95	− 9.58	20	14.5	3.92	0.34 (0.04, 0.64)	0.08 (− 0.17, 0.33)
Leven, UK	56.2	− 3.38	100	3.9	13.3	0.37 (0.15, 0.60)	0.52 (− 0.08, 1.12)
Lower Lake Zurich, Switzerland	47.22	8.72	407	49	67.0	0.12 (− 0.04, 0.28)	0.39 (0.11, 0.66)
Windermere North Basin, UK	54.38	− 2.93	39	25.1	8.0	0.29 (0.04, 0.53)	0.28 (0.00, 0.56)
Windermere South Basin, UK	54.32	− 2.95	39	16.8	6.7	0.33 (0.06, 0.60)	0.30 (0.03, 0.58)
Wörthersee, Austria	46.63	14.13	440	42.1	19.39	0.51 (0.28, 0.74)	0.51 (0.33, 0.68)