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  • BSI
    BS ISO 16695:2014 Space environment (natural and artificial). Geomagnetic reference models
    Edition: 2014
    $435.35
    / user per year

Description of BS ISO 16695:2014 2014

This International Standard defines reference models representing the geomagnetic field. It closely mirrors and clarifies specifications which have been in use for many decades.

The approach is to represent the corresponding scalar magnetic potential by a spherical harmonic expansion having specified numerical coefficients, called Gauss coefficients. This International Standard covers models in which, at any one time, changes of the magnetic field are modelled by a linear time-dependence of each Gauss coefficient. A model might consist of a succession of sub-models, in each of which the coefficients change linearly with time. For such a step-wise linear model, the coefficients are continuous in time. This International Standard provides the formulae and a step-by-step computational procedure to evaluate a geomagnetic reference model for any desired location and date.

This International Standard does not specify the interpretation of the geophysical content of a geomagnetic reference model. It is left to the producer of a model to specify which internal and external magnetic sources are included in (or excluded from) their model.



Standard NumberBS ISO 16695:2014
TitleSpace environment (natural and artificial). Geomagnetic reference models
StatusUnder Review
Publication Date2014-02-28
Identical National Standard OfISO 16695:2014
DescriptorsAtmospheric disturbances, Astronomy, Space sciences, Atmospheric radiation, Simulation, Mathematical models, Solar system, Magnetic fields
ICS49.140 Space systems and operations
CommitteeACE/68
ISBN978 0 580 73121 1
PublisherBSI
Pages30

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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