The flow between the Adriatic and the greater Mediterranean through the Otranto Strait is that of a typical dilution basin wherein low salinity water exits near the surface and high salinity water enters at depth. There is an additional outflow layer beneath the incoming Levantine Intermediate Water (LIW) that results from the surface water in the very shallow (less than 200 m) northern Adriatic being greatly cooled by outbreaks of strong and cold winter winds called bora. This gives the deep outflow water, whose characteristics are a temperature of 13 deg. C and a salinity of 38.6, a density greater than that of the overlying LIW. See Tomczak and Godfrey (1994).