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A cross sea (also referred to as a squared sea or square waves [a]) is a sea state of wind-generated ocean waves that form nonparallel wave systems. Cross seas have a large amount of directional spreading. [1] This may occur when water waves from one weather system continue despite a shift in wind. Waves generated by the new wind run at an ...
The waves are partially caused by the deposition of sediment as the river slows, as well as mixing with ocean waves. The waves, wind, and current are hazardous for vessels of all sizes. The Columbia current varies from 4 to 7 knots (7.4 to 13.0 km/h ) westward, and therefore into the predominantly westerly winds and ocean swells, creating ...
A square wave is a non-sinusoidal periodic waveform in which the amplitude alternates at a steady frequency between fixed minimum and maximum values, with the same duration at minimum and maximum. In an ideal square wave, the transitions between minimum and maximum are instantaneous.
Here's why you'll want to get out of the water ASAP if you see square waves.
The National Weather service is warning that Hurricane Lee may generate dangerously large surf and rip currents along the Myrtle Beach coast. Here’s how to stay safe on the beach this week.
Rogue waves present considerable danger for several reasons: they are rare, unpredictable, may appear suddenly or without warning, and can impact with tremendous force. A 12 m (39 ft) wave in the usual "linear" model would have a breaking force of 6 metric tons per square metre [t/m 2] (8.5 psi).
Clark Little uses his knowledge and love of surfing and the ocean to show people rare glimpses into the inside of Hawaii's most powerful waves.
This list of rogue waves compiles incidents of known and likely rogue waves – also known as freak waves, monster waves, killer waves, and extreme waves. These are dangerous and rare ocean surface waves that unexpectedly reach at least twice the height of the tallest waves around them, and are often described by witnesses as "walls of water ...