European Space Agency

Royal Belgian Institute for Aeronomy

um517 - transform from Schmidt to Kluge normalisation

subroutine  um517(nmax, gcoef)

Parameters:

• nmax [integer4,in] :: effective size of parameter gcoef

• gcoef (nx140, nx140) [real8,in/out] :: expansion coefficients at the base epoch

Description

The subroutine um517() transforms the Schmidt-normalized expansion coefficients into Kluge-normalized coefficients. Generally the geomagnetic field is evaluated by the way of subroutine um531() which uses Schmidt-normalized coefficients. Since this subroutine is limited to order 12 (nmax lower or equal to 13), the subroutine um537() has to be used instead for higher order. The subroutine um537() makes use of Kluge-normalized coefficients and subroutine um517() allows to change the normalisation.

Diagnostics

None

Common Blocks

None

Dependencies

Called by

• um510 - select an internal field model

Calls

None

See also

• um531 - evaluate the geomagnetic field

• um537 - Kluge evaluation of the geomagnetic field

Reported Bugs

None

Examples

None

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UNILIB/tags/v3.02