Construct · 1 fields · 1 citations

surf beat: a standalone construct

One name. One construct. A landmark on the map.

● anchor · one construct, one field Nearest construct by meaning·not indexed
surf beat1 CONSTRUCTSurf beatINFRAGRAVITY · WAVE GROUPS

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Coastal oceanography

Slow swells in surf level tied to wave groups

Surf beat is the slow rise and fall of water level and breaker height in the surf zone, on timescales of tens of seconds to minutes, far longer than individual swell waves. First described by Munk, it is now understood as the signature of infragravity waves: long waves generated by the grouping of ordinary swell and released or reflected near shore. Bertin and colleagues' 2018 review Infragravity waves: From driving mechanisms to impacts traces these waves from their origin in wave groups to their role in beach erosion, harbour oscillation, and coastal flooding. The referent is a low-frequency wave motion in shallow water, measured by its period and amplitude, distinct from the swell that drives it.[1]

Unit
The low-frequency (infragravity) water-level oscillation in the surf zone
Recovery means
Not applicable
Measured by
Resolved as the infragravity band (roughly 0.004–0.04 Hz) of nearshore water-level or current spectra

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Nearby constructs

significant wave height1 fields · 1 citationsanchor · one construct, one fieldamplitude4 fields · 4 citationsjingle · one word, four constructsbeat3 fields · 6 citationsjingle · one word, three constructs

References

  1. Bertin, X., de Bakker, A., van Dongeren, A., Coco, G., André, G., Ardhuin, F., … Tissier, M. (2018). Infragravity waves: From driving mechanisms to impacts. Earth-Science Reviews, 177, 774–799. https://doi.org/10.1016/j.earscirev.2018.01.002

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