Modelling Lake Ice Phenology with an Examination of Satellite-Detected Subgrid Cell Variability

Table 6

Spearman correlation (𝑅) values for both mean MODIS- and IMS-detected ice-off compared to simulated ice-off (both with and without a snow cover on the ice) and ice-on dates. All values are significant at the 0.001 level.

	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010
MODIS
Ice-off (snow-free)	0.95	0.90	0.97	0.93	0.95	0.92	0.94	0.97	0.92	0.97	0.96
Ice-off (snow)	0.97	0.87	0.96	0.92	0.94	0.92	0.94	0.97	0.87	0.95	0.96
Ice-on	0.83	0.92	0.82	0.84	0.89	0.85	0.89	0.91	0.91	0.92	0.52*
IMS
Ice-off (snow-free)					0.91	0.93	0.91	0.96	0.94	0.94	0.95
Ice-off (snow)					0.90	0.93	0.90	0.95	0.92	0.93	0.96
Ice-on					0.69	0.70	0.68	0.83	0.48	0.77	0.41*

*Reduced dataset for FU 2010 as lakes that froze up in 2011 were not included in the simulations.