Brine rejection that drains from the newly formed ice is replaced by a weak flow of relatively fresh water, from the liquid region below it. The new water partially freezes within the pores of the ice, increasing the solidity of the ice. As sea ice ages and thickens, the initial salinity of the ice decreases due to the rejection of brine over time [Fig. 2]. While the sea ice ages, desalinization occurs to such a degree that some multiyear ice has a salinity of less than 1 PSU. This occurs in three different ways: Brine rejection occurs in the sea ice packs
Open-pan salt making used brine from natural brine streams flowing over buried salt deposits that was pumped up from the ground and evaporated using the open-pan technique. Salt Refining. This was a large-scale salt industry developed in coastal locations, based on a combination of inland salt mining and coastal salt production. Referred to as salt refining or salt-on-salt the process it combined weak brine from seawater with mined rock salt, and evaporated the brine into a white salt. Open-pan salt production was confined to a few locations were geological conditions preserved layers of salt beneath the ground. Only four complexes of inland open-pan