− Wind speed 1 − 3 kn or 0.3-1.5 m/sec
mean, 2 kn or 1 m/sec
(Ripples with the appearance of scales are formed, but without foam crests)
Photograph − G J Simpson, Courtesy of the Meteorological Office
Enter your account data and we will send you a link to reset your password.
To use social login you have to agree with the storage and handling of your data by this website. %privacy_policy%Accept