Study of Ocean Waves Measured by Collocated HH and VV Polarized X-Band Marine Radars

Table 3

Division of the sea states.

Number	Sea states	Wind speed (m/s)	Time period (hour)
1	Low		235–291, 469–482
2	Low to moderate		83–157
3	Moderate to high		1–82, 158–222, 296–429, 458–467, 492–520
4	High		429–458