Pile 4 : Nuclear Energy and Nuclear Disasters. A long, heavy timber or section of concrete or metal that is driven or jetted into the earth or seabed to serve as a support or protection
Intergovernmental Oceanographic Commission IOC technical series 37, Tsunami Glossary (A glossary of terms and acronyms used in the tsunami literature - English), , United Nations Educational, Scientific and Cultural Organization UNESCO, Paris, France 1991. http://unesdoc.unesco.org/images/0008/000885/08853 8eb.pdf, (ND/ Tsunami Sci - Brit) {590}