DOI: 10.5061/dryad.ghx3ffbws
title: HIDRA simulations and post-processing scripts for JGR: SP manuscript: characterization of N+ abundances in the terrestrial polar wind using the multiscale atmosphere-geospace environment

description: The High-latitude Ionosphere Dynamics for Research Applications (HIDRA)
 model is part of the Multiscale Atmosphere-Geospace Environment
 (MAGE) model under development by the Center for Geospace Storms (CGS)
 NASA DRIVE Science Center. This study employs HIDRA to simulate upflows of
 H+, He+, O+, and N+ ions, with a particular focus on the relative N+
 concentrations, production and loss mechanisms, and thermal upflow drivers
 as functions of season, solar activity, and magnetospheric convection. The
 simulation results demonstrate that N+ densities typically exceed He+
 densities, N+ densities are typically ∼ 10% O+ densities, and N+
 concentrations at quiet-time are approximately 50-100% of N+
 concentrations during storm-time. Furthermore, the N+ and O+ upflow fluxes
 show similar trends with variations in magnetospheric driving. The
 inclusion of ion-neutral chemical reactions involving metastable atoms is
 shown to have significant effects on N+ production rates. With this
 metastable chemistry included, the simulated ion density profiles compare
 favorably with satellite measurements from Atmosphere Explorer C (AE-C)
 and Orbiting Geophysical Observatory 6 (OGO-6).
description: This dataset was collected by running the High-latitude
 Ionosphere Dynamics for Research Applications (HIDRA) model which is a
 significant rewrite of the Ionosphere/Polar Wind Model (IPWM) [Varney et
 al., 2014] [Varney et al., 2015] [Varney et al., 2016]) and designed as a
 component of the Multiscale Atmosphere-Geospace Environment (MAGE)
 framework under development by the Center for Geospace Storms NASA DRIVE
 Science Center. This dataset was processed using Jupyter Notebook scripts
 for analysis and vizualization.
description: # HIDRA simulations and post-processing scripts for JGR:SP manuscript:
 "Characterization of N+ Abundances in the Terrestrial Polar Wind
 using the Multiscale Atmosphere-Geospace Environment"
 [https://doi.org/10.5061/dryad.ghx3ffbws](https://doi.org/10.5061/dryad.ghx3ffbws) ## Description of the data and file structure This dataset was produced by the HIDRA model and includes all post-processing scripts. The Jupyter notebook (.ipynb) file titled "JGR_final_RA_HIDRA_N+plot.ipynb" generates Figures 1-10, 13-16, and 18 provided the user setting at of 1- season by the SeasonFlag (=1 for summer and =0 for winter), 2- solar activity level denoted by F10.7 solar radio flux by the SolarFlag (=0 for F10.7= 80 sfu, =1 for F10.7= 120 sfu, and =2 for F10.7= 200 sfu, where a solar flux unit, sfu, is equal to 10−22 W ⋅ m−2 ⋅ Hz−1), and geomagnetic activity level denoted by GeoFlag (=1 for quiet time, =2 for storm-time, and =3 for recovery time). Similarly, the file titled "JGR_RA_HIDRA_Fluences2.ipynb" produces Figures 11 and 12 and the notebook file titled "JGR_RA_HIDRA_chemrates.ipynb" produces Figure 17. Lastly, "JGR_RA_HIDRA_momentumEQN.ipynb" generates Figure 19-21. Sharing/Access information This DOI includes only the post-processing scripts in Jupyter Notebook (python). For the complete data set of all simulation results the user is recommended to login to Globus and retrieve the data available to the public with the following link: * [https://app.globus.org/file-manager?origin_id=f5952375-9fbc-4acb-9322-4902145f3a2e&origin_path=%2F](https://app.globus.org/file-manager?origin_id=f5952375-9fbc-4acb-9322-4902145f3a2e&origin_path=%2F)