WAVE CHARACTERISTICS ON THE CENTRAL COAST OF VIETNAM IN THE SOUTH CHINA SEA

摘要

Wave observations were carried out at the mouth of Danang Bay and off the Key Ha Cape in central Vietnam from April 1997 to February 1998 in a port development study by the Japan International Cooperation Agency. It is the first long-term measurement of waves in the west South China Sea by reliable wave measurement devices. Wind waves due to typhoons as high as 9m in maximum height were successfully recorded, including those generated by Typhoons 9721 and 9726. Long period waves up to 16 seconds in significant period were revealed to exist. It is proved that the long pe- riod waves are swells from a large-scale typhoon remotely located in the west Pacific and propagated through the Luzon Strait to the central coast of Vietnam.