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A rip current (or just rip) is a specific type of water current that can occur near beaches where waves break. A rip is a strong, localized, and narrow current of water that moves directly away from the shore by cutting through the lines of breaking waves, like a river flowing out to sea.
An "undertow" is a steady, offshore-directed compensation flow, which occurs below waves near the shore. Physically, nearshore, the wave-induced mass flux between wave crest and trough is onshore directed. This mass transport is localized in the upper part of the water column, i.e. above the wave troughs. To compensate for the amount of water ...
Rip currents: These are narrow channels of fast-moving water that flow away from shore. Undertow: This is the general return flow of water towards the ocean floor after a wave breaks. It can feel ...
Here are some things to know about rip currents: What is a rip current? Rip currents are narrow columns of water flowing rapidly away from the beach, like a swift stream within the ocean. They don't pull swimmers under water, but can carry them out a fair distance from shore. Low spots along the beach, or areas near jetties or piers, are often ...
One of those dangers is rip currents. According to the National Weather Service, rip currents are the third leading cause of weather-related deaths in the U.S. since 2013 — surpassing both ...
In attempting to counter rip currents, human chains can be a dangerous rescue technique because they have the potential to create a multi-victim scenario if the rip current pulls additional people ...
A rip tide, or riptide, is a strong offshore current that is caused by the tide pulling water through an inlet along a barrier beach, at a lagoon or inland marina where tide water flows steadily out to sea during ebb tide. It is a strong tidal flow of water within estuaries and other enclosed tidal areas. The riptides become the strongest where ...
Longshore drift. Longshore drift from longshore current is a geological process that consists of the transportation of sediments (clay, silt, pebbles, sand, shingle, shells) along a coast parallel to the shoreline, which is dependent on the angle of incoming wave direction. Oblique incoming wind squeezes water along the coast, and so generates ...