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Slaved Variation (SVA)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: sva.ttl
- Name
slavedVariation- Datatype
- Realm180to180
- Definition
- A fixed value of magnetic declination applied within an aid to navigation to the true direction in order to obtain the reported magnetic directions for radials, courses and headings.
- Description
- The value is fixed for a period of time and therefore may differ from the true declination due to subsequent drift of the Earth's magnetic field.
- Synonyms
- Slaved Declination
- Accepted
- 2013-10-18
- Defined by
- DFDD
- Physical quantity
- planeAngle
- Recommended unit
- Arc Degree
- Used by
- ZI103 Magnetic Variation Information
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.