(a) Model-simulated power-law exponents of the cumulative floe number distributions (CFND) and those derived using MODIS images collected from April through October in 2013 and 2014. The blue line indicates equality and the red line represents the best fit to the observations. The number of total observation points, observed and modeled mean values, model bias (mean model–observation difference), and model–observation correlation (R) are listed. (b) Point-by-point differences in power-law exponents between model results and observations at the locations of the observations; red (blue) color indicates that the modeled exponent is higher (lower) than the observed with more (fewer) floes of smaller size.