Definition

Term used in a wide sense to include any area of SEA ICE, other than FAST ICE, no matter what form it takes or how it is disposed. Pack ice may be des­cribed as VERY OPEN PACK ICE (1/10ths-3/10ths), OPEN PACK ICE (4/10ths-6/10ths), CLOSE PACK ICE (7/10­ths-9/10ths), VERY CLOSE PACK ICE (almost 10/10th with little if any water visible).