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amplitude_of_global_average_sea_level_change

Concept · Climate and Forecast Standard Names · Draft

Terms

  • Preferred term, Draft

Definition

  • Global average sea level change is due to change in volume of the water in the ocean, caused by mass and/or density change, or to change in the volume of the ocean basins, caused by tectonics etc. It is sometimes called \"eustatic\", which is a term that also has other definitions. It differs from the change in the global average sea surface height relative to the centre of the Earth by the global average vertical movement of the ocean floor. Zero sea level change is an arbitrary level. Amplitude is the magnitude of a wave modelled by a sinusoidal function. A coordinate variable of harmonic_period should be used to specify the period of the sinusoidal wave. Because global average sea level change quantifies the change in volume of the world ocean, it is not calculated necessarily by considering local changes in mean sea level.@en

Note

    Example

      Additional technical information

      Organization
      • MSCR testers
      Created at
      07/05/2025, 6.06
      Modified at
      07/05/2025, 6.06
      URI
      http://vocab.nerc.ac.uk/collection/P07/current/ZSDAR2KM/