TY - JOUR

T1 - ANALYTICAL MODELS OF THE MAGNETIC-FIELD OF DISK-SHAPED CURRENT SHEETS

AU - TSYGANENKO, NA

AU - PEREDO, M

PY - 1994/1/1

Y1 - 1994/1/1

N2 - Disk-shaped current distributions are useful tools in modeling the magnetospheres of Earth and other planets and have also been adapted for modeling the geotail. Such models usually start with an axisymmetric vector potential but may be modified to account for observed asymmetries, variable thickness, and warping in response to an inclined Orientation of the planetary dipole axis. Models of this type until now either have lacked the ability to simulate a sharp inner edge of the current and to control accurately its falloff with distance or did not allow a simple analytical representation. Here existing methods will be reviewed, after which a new class of models which overcomes the above deficiencies and also allows the modeling of current disks of finite thickness flanked by current-free regions will be presented.

AB - Disk-shaped current distributions are useful tools in modeling the magnetospheres of Earth and other planets and have also been adapted for modeling the geotail. Such models usually start with an axisymmetric vector potential but may be modified to account for observed asymmetries, variable thickness, and warping in response to an inclined Orientation of the planetary dipole axis. Models of this type until now either have lacked the ability to simulate a sharp inner edge of the current and to control accurately its falloff with distance or did not allow a simple analytical representation. Here existing methods will be reviewed, after which a new class of models which overcomes the above deficiencies and also allows the modeling of current disks of finite thickness flanked by current-free regions will be presented.

KW - CURRENT DISK

KW - PLASMA SHEET

KW - RING CURRENT

KW - QUANTITATIVE MODELS

KW - MAGNETOSPHERE

KW - MAGNETOTAIL

U2 - 10.1029/93JA02768

DO - 10.1029/93JA02768

M3 - Article

VL - 99

SP - 199

EP - 205

JO - Journal of Geophysical Research: Biogeosciences

JF - Journal of Geophysical Research: Biogeosciences

SN - 0148-0227

IS - A1

ER -