Seiches are oscillations or movements of water in enclosed or partially enclosed bodies, such as lakes, bays, or harbors, caused primarily by changes in atmospheric pressure or strong winds. These oscillations produce waves that can persist for hours or even days, traveling back and forth across the body of water.
The phenomenon of seiches is characterized by the water swaying back and forth, resembling a standing wave that alternately rises and falls at opposite ends of the enclosed area. This occurs due to the action of the external forces on the water, which create a displacement that sets the oscillation in motion. The movement of the water occurs in a regular and predictable pattern, with the waves reaching their highest points at the opposite ends of the enclosure.
Seiches are influenced by various factors, including the size and shape of the body of water, wind speed and direction, and changes in atmospheric pressure. The frequency and duration of the oscillations can vary widely depending on these factors, as well as regional climate patterns.
Seiches can have significant impacts on the local environment, affecting water levels, currents, and shoreline erosion. They can also pose risks to boats, docks, and other structures located within the affected area.
Understanding seiches and their underlying causes is crucial for coastal and aquatic management, as well as for predicting and mitigating potential hazards associated with these oscillations.
