Table 4: Correlation values for pixels containing both IMS and MODIS lakes (456 grid cells). All values are significant at the 0.001 level.

2004200520062007200820092010

Break-up (start)0.560.610.640.640.580.600.67
Mean ice-off 0.600.640.650.660.630.620.70
WCI 0.600.610.640.660.610.620.70

Freeze-up (start)0.310.280.340.490.370.510.24
Mean ice-on 0.390.360.420.530.370.540.26
CFO0.360.320.390.470.340.460.19