They examined the relationship between sea surface temperature and the infrared flux at the top of the atmosphere for clear sky conditions. (scienceofdoom.com)
Thus, under clear sky conditions when the energy beaming down is at a maximum, the albedo of water can be quite high, upwards of 30 %. (realclimate.org)
Field observations (see Hutchings» contribution) suggest that clear sky conditions during nighttime may have promoted overnight ice growth on leads and melt ponds, slowing down ice melt. (searcharcticscience.org)