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Glocer-RECONX (2016-02-02)

Reconnection site determination tool

Model Description

Post-processing utility to calculate changes of magnetic topology in the day side magnetosphere.

The outputs includes separator surfaces and lines and magnetic nulls, all of which determine where magnetic reconnection can occur.
 
Visualization is done in HTML5 using the Plotly library in Python (Glocer_visualization.py and miniconda environment "separatrix_visualization" developed by Asher Pembroke)

Model Figure(s) :

Model Inputs Description

Three-dimensional magnetosphere solution: 
SWMF: 3d__var_1_e20150317-010900-000.out, 3d__var_1_e20150317-010900-000.info, 3d__var_1_e20150317-010900-000.tree
OpenGGCM, LFM, GUMICS (SWMF without  *.tree files): interpolated N, B_x, B_y, and B_z data in dayside magnetosphere/ Tecplot output format.

Model Outputs Description

Set of outputs:
3d__var_1_e20150317-010800-000.out_NegNulls.dat
3d__var_1_e20150317-010800-000.out_PlusNulls.dat
3d__var_1_e20150317-010800-000.out_Separator.dat
3d__var_1_e20150317-010800-000.out_Separator_Plane_Y.dat
3d__var_1_e20150317-010800-000.out_Surface1.dat
3d__var_1_e20150317-010800-000.out_Surface2.dat
Negative nulls, positive nulls (depending on eigenvalues of matrix of derivatives),
Separator (intersection of surfaces separating different topologies) and Surface lists. (Surfaces between closed and open and open and solar wind/IMF topology).

All output files are ASCII files formatted for TecPlot:

Example file with one position:

[RECONX_Glocer_output]$ cat 3d__var_1_e20150317-010900-000.out_NegNulls.dat
VARIABLES = "X", "Y", "Z"
Zone I=  1, J=  1, DATAPACKING=POINT
  1.2500000000E+00 -2.5000000000E-01 -1.1750000000E+01

Model Caveats

Model calculated topology for 3D output snapshots from another model's run.
Runs in parallel on 60 processors but may still take hours to process a single magnetosphere configuration.

Change Log

2016/03/02: Model was modified to use fewer longitude and latitude positions to determine surfaces in order to limit execution time.

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Curator: Chiu Wiegand | NASA Official: Dr. Masha Kuznetsova | Privacy and Security Notices | Accessibility | CCMC Data Collection Consent Agreement