jrm09

JRM09 model (Connerney et al. 2018) implementation using Python.

Installation

Install using pip:

pip3 install jrm09 --user

Or by cloning this repo:

git clone https://github.com/mattkjames7/jrm09.git
cd jrm09

#EITHER create a wheel and install (replace X.X.X with the version number):
python3 setup.py bdist_wheel
pip3 install dist/jrm09-X.X.X-py3-none-any.whl --user

#OR install directly using setup.py
python3 setup.py install --user

Usage

The model accepts right-handed System III coordinates either in Cartesian form (jrm09.ModelCart()) or in spherical polar form (jrm09.Model()), e.g.:

import jrm09

#get some Cartesian field vectors (MaxDeg keyword is optional)
Bx,By,Bz = jrm09.ModelCart(x,y,z,MaxDeg=10)

#or spherical polar ones
Br,Bt,Bp = jrm09.Model(r,theta,phi,MaxDeg=10)

Please read the docstrings for jrm09.Model() and jrm09.ModelCart() using help or ? e.g. help(jrm09.Model) .

There is also a test function which requires matplotlib to be installed:

#evaluate the model at some R
jrm09.Test(R=0.85)

which produces this (based on figure 4 of Connerney et al. 2018):

References

Connerney, J. E. P., Kotsiaros, S., Oliversen, R. J., Espley, J. R., Joergensen, J. L., Joergensen, P. S., et al. (2018). A new model of Jupiter's magnetic field from Juno's first nine orbits. Geophysical Research Letters, 45, 2590– 2596. https://doi.org/10.1002/2018GL077312