resolvedvelocities is a Python implementation of the Heinselman and Nicolls Bayesian reconstruction algorithm1 used to resolved 3D ion drift velocity and electric field vectors from AMISR line-of-sight measurements. There are two flavors of this algorithm, one which bins points by magnetic latitude and is typically used in the F-region to get local plasma convection velocities, and one which bins point by altitude and is typically used in the E-region to get altitude profiles of velocity. This package contains programs to run both.
This package requires numpy and apexpy and can be installed with `pip`:
pip install git+https://github.com/amisr/resolvedvelocities.gitThis code is designed to be run from the command line with a configuration file. The configuration file specifies the input and output file names as well as a variety of other parameters.
Latitude-Binned Resolved Velocities (Vvels-Lat):
resolvedvelocities-lat config.iniAltitude-Binned Resolved Velocities (Vvels-Alt):
resolvedvelocities-alt config.iniNote: The apexpy dependency MUST be installed from commit 94e63c3af524b60dd652eb1c92df786e7ac9076a. This version includes the function bvectors_apex, which returns the value of Be3, necessary to convert the plasma drift velocity to the electric field.
Full documentation is available at https://resolvedvelocities.readthedocs.io/en/latest/.
Source code is available from the resolvedvelocities GitHub page. Code is open source under GNU General Public License v3.0. Please report bugs by submitting an issue!
Heinselman, C. J., and Nicolls, M. J. (2008), A Bayesian approach to electric field and E‐region neutral wind estimation with the Poker Flat Advanced Modular Incoherent Scatter Radar, Radio Sci., 43, RS5013, doi:`10.1029/2007RS003805 <https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007RS003805>`_.↩