European Space Agency

Royal Belgian Institute for Aeronomy

uc110 - magnetic drift shell

type  uc110

Synopsis

INCLUDE 'unilib.h'

COMMON /UC110/ mlbl, k1st, klmp

INTEGER*4   k1st, klmp
TYPE(zlbl)  mlbl

Arguments

mlbl

Labels of the drift shell (zlbl)

k1st

Indice of the first field line segment of the drift shell

klmp

Indice of the field line segment with the lowest mirror point

Description

The common block UC110 is part of a set of three common blocks:

• uc110 - magnetic drift shell

• uc120 - magnetic field line

• uc130 - magnetic field line segments

This set of common blocks is used to store a magnetic drift shell which is defined by a set of magnetic field line segments. The common block uc110 is used to store the global parameters of the drift shell. Among other things, the arguments mlbl%fbmp and mlbl%flmi correspond to the coordinates (Bm, Lm) which define the drift shell. The arguments k1st and klmp correspond to indices relative to the argument mfl of the common block uc120. The argument klmp is used to point on the field line segment of the shell which reaches the lowest altitude. Note that the common block uc170 has a similar structure (argument mlab).

Dependencies

Used by

• ud315 - search the mirror point with the lowest altitude

  k1st

• ud316 - Search the equatorial point with the lowest magnetic field intensity

  k1st

• ud319 - transfer a field line segment from common block uc170 to uc130

  mlbl

• ud320 - evaluate a double time integral over a drift shell

  k1st, mlbl%fbmp and mlbl%lbmp

• ud331 - evaluate the magnetic flux through a spherical cap

  k1st

• ut985 - transfer a field line of the drift shell to IDL

  k1st

• ut992 - print the magnetic drift shell

  k1st, mlbl%linv, mlbl%finv, mlbl%lbmp, mlbl%fbmp, mlbl%lkauf, mlbl%fkauf, mlbl%llmi, mlbl%flmi, mlbl%lalp0 and mlbl%falp0

• ut993 - Store a magnetic field drift shell

  k1st, mlbl%lbmp, mlbl%llmi, mlbl%fbmp and mlbl%flmi

Modified by

• ud315 - search the mirror point with the lowest altitude

  klmp

• ud316 - Search the equatorial point with the lowest magnetic field intensity

  klmp

• ud319 - transfer a field line segment from common block uc170 to uc130

  mlbl, k1st and klmp

• ud330 - evaluate the third invariant

  mlbl%lphi and mlbl%fphi

• ut990 - initialize the UNILIB library

  k1st and klmp

See also

• uc120 - magnetic field line

• uc130 - magnetic field line segments

• ud310 - trace a magnetic drift shell

Examples

None

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UNILIB/tags/v3.02