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directional wave spectrum [1 record]

Record 1 2011-08-03

English

Subject field(s)
  • Energy Transformation
  • Tidal Power Stations
  • Wave-Energy Power Plants
  • Oceanography
DEF

A two-dimensional spectrum that shows how the wave energy is distributed between various directions of incidence, in addition to how it is distributed among various frequencies.

OBS

These will vary about a principal wave direction which in real generated seas will vary with time, notably on an hour-by-hour, day-by-day, or seasonal basis.

OBS

The plural form of "spectrum" is "spectra."

PHR

Directional Ocean Wave Spectrum.

Key term(s)
  • directional wave spectra
  • wave directional spectra

French

Domaine(s)
  • Transformation de l'énergie
  • Centrales marémotrices
  • Centrales houlomotrices
  • Océanographie
CONT

Les bouées de mesures du spectre directionnel des vagues (pilonnement, roulis, tangage, cap) ont deux avantages importants par rapport aux autres instrumentations possibles : elles sont utilisables quelle que soit la profondeur d'eau en dehors de la zone littorale de déferlement, et elles fournissent une information continue en fréquence sur tout le spectre de vagues de périodes supérieures à 2.5 secondes.

PHR

Spectre directionnel des vagues de l'océan.

Spanish

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