ESS11
Prof. Jin-Yi Yu
Salinity
q Salinity is the mass of dissolved salts in a kilogram of seawater.
q Unit: ‰ (part per thousand; per mil).
q The average salinity of the world ocean is 34.7‰.
q Four major factors that affect salinity: evaporation, precipitation,  inflow of river water, and sea-ice formation and melting.
E > P
E < P
Sea-ice formation and melting
(from Global Physical Climatology)