Table 1.

Long-term water temperature trends at the lake surface and subsurface transects.

	Linear regression	Theil–Sen	STL
Lake-average year-round surface trend	0.34 ± 0.21	0.31 ± 0.18	0.40 ± 0.05
Mooring year-round surface trend	0.40 ± 0.26	0.41 ± 0.20	0.49 ± 0.07
Mooring year-round 30 m trend	0.07 ± 0.18*	0.11 ± 0.13*	−0.02 ± 0.05*
Mooring year-round 60 m trend	0.11 ± 0.09	0.11 ± 0.07	0.09 ± 0.03
Mooring year-round 75 m trend	0.12 ± 0.07	0.11 ± 0.06	0.11 ± 0.02
Mooring year-round 100 m trend	0.11 ± 0.06	0.08 ± 0.04	0.11 ± 0.02
Mooring year-round 110 m trend	0.05 ± 0.06*	0.04 ± 0.04*	0.06 ± 0.01
Mooring year-round 140 m trend	0.00 ± 0.08*	−0.04 ± 0.05*	0.00 ± 0.01*

Estimates are given for three statistical approaches, simple linear regression, a Theil–Sen line, and a linear fit to the STL long-term component with 95% confidence intervals in °C/decade. Confidence intervals that include zero are indicated with “*”.