Magnetic Field Models in the SPEDAS GUI: Difference between revisions
(→Usage) |
|||
| Line 9: | Line 9: | ||
The magnetic field models panel allows you to: | The magnetic field models panel allows you to: | ||
* calculate the field model at a position (versus time) | * calculate the field model at a position (versus time) | ||
* trace the | * trace the field from a position to the equator (versus time) | ||
* trace the | * trace the field from a position to the ionosphere (versus time) | ||
=== Tsyganenko-Sitnov 04 (also known as TS05) model === | === Tsyganenko-Sitnov 04 (also known as TS05) model === | ||
| Line 25: | Line 25: | ||
=== Tsyganenko 89 model === | === Tsyganenko 89 model === | ||
=== International Geomagnetic Reference Field (IGRF) model === | === International Geomagnetic Reference Field (IGRF) model === | ||
== Examples == | == Examples == | ||
Revision as of 17:42, 21 February 2014
Geomagnetic Field Models
The SPEDAS GUI can be used to generate and trace geomagnetic field models using the IDL Geopack library. The models currently available from the GUI include IGRF as well as the Tsygenenko 89, 96, 01 and 04 models.
Requirements
The Geopack library must be installed before getting started. Download and install the latest Geopack from http://ampere.jhuapl.edu/code/idl_geopack.html
Usage
The magnetic field models panel allows you to:
- calculate the field model at a position (versus time)
- trace the field from a position to the equator (versus time)
- trace the field from a position to the ionosphere (versus time)
Tsyganenko-Sitnov 04 (also known as TS05) model
The Tsyganenko 04 model requires various geomagnetic and interplanetary magnetic field (IMF) data, including:
- IMF By and Bz
- Solar wind proton density
- Solar wind flow speed
- Dst (or Sym-H) index
The TS04 model also requires 6 "W" coefficients, though the Field Models panel in the GUI can be used to calculate the required W coefficients using the IMF data.
Tsyganenko 01 model
Tsyganenko 96 model
Tsyganenko 89 model
International Geomagnetic Reference Field (IGRF) model
Examples
See also
Detailed Description of the TS04 (TS05) Model in JGR
Detailed Description of the T01 Model in JGR (mathematical structure)
Detailed Description of the T01 Model in JGR (parameterization and fitting to observations)
Detailed Description of the T96 Model in JGR
Detailed Description of the T96 Model (paper #2)
Detailed Description of the T89 Model
References
Modeling the Earth's Magnetosphere Using Spacecraft Magnetometer Data
Data Required for the TS05 Model (including W coefficients)
IDL Geopack DLM at Johns Hopkins University Applied Physics Laboratory