PyGeopack 0.0.10

Geopack08 wrapper for Python

# PyGeopack

A Python wrapper for Geopack-2008. This includes the T89, T96, T01 and TS05 (or is it TS04? I don’t know…) magnetic field models for Earth’s magnetosphere. See https://ccmc.gsfc.nasa.gov/modelweb/magnetos/tsygan.html and http://geo.phys.spbu.ru/~tsyganenko/modeling.html for more information.

NOTE: T01 doesn’t currently work - there’s a segmentation fault for some reason.

## Requirements

The following Python packages will be installed automatically:

• numpy

• PyFileIO

• RecarrayTools

• DateTimeTools

• kpindex

During the first import of the PyGeopack module, some C and Fortran needs compiling first, so the following will be needed:

• gcc

• make

• gfortran

## Installation

Firstly a couple of environment variables need setting up: $KPDATA_PATH and $GEOPACK_PATH, which will point to the Kp index data and the Geopack data, respectively. This can be done by including the following in your ~/.bashrc file, or by running it in the terminal before starting Python:

` export KPDATA_PATH=/path/to/kp export GEOPACK_PATH=/path/to/geopack/data ` where both of those directories must be writable by the current user, unless the data already exist in them.

Then simply install using pip3:

` pip3 install PyGeopack --user `

or by downloading the latest release on GitHub and running:

` pip3 install PyGeopack-0.0.9-py3-none-any.whl --user `

## Post-install

After installation, the PyGeopack module will attempt to locate the OMNI data required for the models. If these data exist already in $GEOPACK_PATH then it will load into memory. If they don’t exist, then the user will be prompted for authorisation to download the data, to allow the data download, press ‘y’, otherwise press ‘n’. The data download and conversion may take a little while.