Oceanic eddies are also usually made of water masses that are different from those outside the eddy. That is, the water within an eddy usually has different temperature and salinity characteristics to the water outside the eddy. There is a direct link between the water mass properties of an eddy and its rotation.
Sri Lanka became an independent and sovereign nation on February 4, 1948. It changed its name to Free, Sovereign and Independent Republic of Sri Lanka in 1968 and finally to its current name Democratic Socialist Republic of Sri Lanka in 1972. February 4 each year is celebrated as a national holiday in Sri Lanka.
In 1972 the Dominion of Ceylon became the  Democratic Socialist Republic of Sri Lanka  and the Royal Ceylon Navy became the Sri Lanka Navy. The Naval ensign along with the Flag Officers' flags were redesigned.n 1948, when Sri Lanka achieved independence from Britain, the Governor was replaced with a Governor-General. The Governor-General was responsible not to London, but to the Monarch of Ceylon, the local government, and the local parliament. The Governor-General was a largely ceremonial figure.