The significant wave height is a
measure for the wave height, and closely corresponds to
what a trained observer would consider to be the mean wave height. Note that
the highest wave height of an individual wave will be significantly larger.
Note on the viewer:
The Javascript viewer does not function correctly in Internet Explorer
versions 6-8. Alternative browsers in which the viewer does perform
correctly include Firefox, Opera, Safari, Chrome, Konqueror, Omniweb,
Seamonkey, Camino, others. If you encounter difficulties with the viewer in
Internet Explorer, we suggest trying one of the other browsers.