It is assumed to be entirely ice covered with at least 15 % concentration. However, the 'area' column excludes the area not imaged by the sensor. This area is 1.19 million km2 for SMMR (35) (from the beginning of the series through June 1987) and 0.31 million square kilometres for SSM/I (36) (from July 1987 to present). Therefore, there is a discontinuity in the 'area' data values in this file at the June/July1987 boundary.
The best way to dispose of paint is to deliver it to your local specialist waste recycling centre. If you do not have access to one of these, let the paint dry fully, adding sawdust or cat litter as needed, before putting it in the dustbin. Don't throw it down the drain, because it is toxic and it interferes with the processes of water treatment plants.
More green tips