The category of significant wave height based on the Douglas Sea Scale. Significant wave height is also know as Total Wave height which is the mathematical vector addition of swell waves and wind waves.
Part ii, 220.127.116.11
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This standard terminology is equivalent to the Douglas Sea Scale (UK Met national Meteorological Library and Archive Fact sheet 6, version 01).The units of this attribute are not defined by the LUNITS attribute.
On behalf of the IHO Member States, the International Hydrographic Bureau would like to thank Korea Hydrographic and
Oceanographic Agency(KHOA) of the Republic of Korea for giving active support in the development of the S-100 GI Registry