Map of the Celtic Sea, an arm of the Atlantic.
The 'Celtic Sea' (; ;
Cornish and
Devonian: ''An Mor Keltek'';
Breton: ''Ar Mor Keltiek'') is the area of the
Atlantic Ocean off the south coast of
Ireland. It is bounded to the east by
Saint George's Channel, the
Bristol Channel and the
English Channel, as well as adjacent portions of
Wales,
Cornwall,
Devon and
Brittany. The
Celtic heritage of the bounding lands give the sea its name, first proposed by
E. W. L. Holt in 1921. The northern portion of this sea had previously been considered part of
Saint George's Channel and the southern part had no common name; the need for a common name came to be felt because of common
geology and
hydrology. The name is now commonly used by workers in the
oil and
fishing industries.
The southern and western boundaries are less clearly defined. Holt suggested the 200
fathom (366
m) marine
contour and
Ushant; the
International Hydrographic Organization definition uses
rhumb lines and extends slightly further south.
References
★
IHO Limits of Oceans and Seas (page 39, section 21A).
External links
★
cs-locale.png Map of the Celtic Sea: Sheffield Centre for Earth Observation Science
★
Coccoliths in the Celtic Sea: a bloom of
phytoplankton in the Celtic Sea, visible from space in an MISR image,
June 4,
2001
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