Variable Names

Column descriptions for every table in the database

desc_runs Table vmec_runs Table configurations Table devices Table publications Table

Variable Description

descrunid Unique identifier for the desc_run

configid Integer FK to the configuration used to generate this desc_run (further details in the configurations table)

user_created Full name of the user who created this desc_run in the database

description Description of the desc_run

provenance Short description of where this configuration and desc run came from, e.g. DESC github repo

version DESC version used for this simulation

initialization_method The method of how the DESC equilibrium solution was initialized — one of "surface", "NAE", "poincare_section", or the name of a .nc or .h5 file corresponding to a VMEC (if .nc) or DESC (if .h5) solution

l_rad Radial spectral resolution

m_pol Poloidal spectral resolution

n_tor Toroidal spectral resolution

l_grid Radial grid resolution (usually double the l_rad)

m_grid Poloidal grid resolution (usually double the m_pol)

n_grid Toroidal grid resolution (usually double the n_tor)

inputfilename The name of the input file (if any) used to generate the equilibrium. The ones that have "auto_generated_" prefix are automatically generated by DESC.

outputfile The name of the output file as stored in the database.

profile_rho rho values used to evaluate iota, current and pressure profiles for the database

current_specification If the total enclosed current is given as a profile then this has "net enclosed current" value, if the iota profile is given then "iota"

iota_profile Iota profile evaluated at flux surfaces between rho=0 and rho=1, given with profile_rho

iota_max The maximum value of iota calculated on profile_rho flux surfaces

iota_min The minimum value of iota calculated on profile_rho flux surfaces

current_profile Current profile evaluated at flux surfaces between rho=0 and rho=1, given with profile_rho

pressure_profile Pressure profile evaluated at flux surfaces between rho=0 and rho=1, given with profile_rho

pressure_max The maximum value of pressure calculated on profile_rho flux surfaces

pressure_min The minimum value of pressure calculated on profile_rho flux surfaces

D_Mercier Mercier stability criterion evaluated at 10 evenly spaced radial points from rho=0.1 to rho=1 (positive/negative value denotes stability/instability)

D_Mercier_min The minimum value of D_Mercier

D_Mercier_max The maximum value of D_Mercier

vacuum True if the equilibrium is vacuum (no pressure or current)

max_normalized_F_error Maximum normalized force error of the equilibrium

spectral_indexing Spectral indexing method used

sym True if the equilibrium is symmetric

publicationid ID of the publication (as stored in the database) if there is any

date_created The date the run was saved to the database (YY/MM/DD)

Variable Description

vmecrunid Unique identifier for the vmec_run

configid Integer FK to the configuration used for this VMEC run

user_created User who created this VMEC run in the database

description Description of the VMEC run

provenance Short description of where this VMEC run came from

vmec_version VMEC version used for this simulation

mpol Poloidal mode number

mtor Toroidal mode number

ns_array Array of radial grid points

niter_array Array of maximum iterations

ftol_array Array of force tolerance

iotaf Iota profile on full grid

inputfile Name of the input file

outputfile Name of the output file

publicationid ID of associated publication if any

date_created Date the run was saved to the database

Variable Description

configid Unique identifier for the configuration

name Unique name for the configuration

deviceid Unique identifier of the device that this configuration represents, if there is any

user_created Full name of the user who created this configuration in database

NFP Number of field periods (integer)

description Description of this configuration

provenance Short description of where this configuration came from, e.g. DESC github repo

m Poloidal modenumbers which correspond to the RBC/ZBC/RBS/ZBS

n Toroidal modenumbers which correspond to the RBC/ZBC/RBS/ZBS

stell_sym 1 if the configuration is stellarator symmetric, 0 if not

toroidal_flux Total toroidal flux Psi

aspect_ratio Aspect ratio found by average major radius over average minor radius

major_radius Average major radius in meters

minor_radius Average minor radius in meters

volume Total volume enclosed by the last closed flux surface in cubic meters

volume_averaged_beta Volume averaged normalized plasma pressure

volume_averaged_B Volume averaged magnetic field in Tesla

total_toroidal_current Net toroidal current enclosed by last closed flux surface in Amperes

RBC Array of the R_mn cos(mt - nz) coefficients

ZBS Array of the Z_mn sin(mt - nz) coefficients

RBS Array of the R_mn sin(mt - nz) coefficients

ZBC Array of the Z_mn cos(mt - nz) coefficients

current_specification The given profile whether iota or net enclosed current

pressure_profile Pressure profile evaluated at predefined rho positions

iota_profile Iota profile evaluated at predefined rho positions

current_profile Current profile evaluated at predefined rho positions

average_elongation Average elongation, mean(major radius over minor radius)

Z_excursion Measure of the excursion in the vertical direction (Z_max - Z_min)

R_excursion Measure of the excursion in the radial direction (R_max - R_min)

classification Class of the configuration: Axisymmetric (AS), Quasi-Axisymmetric (QA), Quasi-Helically Symmetric (QH), etc.

date_created The date the configuration was saved to the database (YY/MM/DD)

Variable Description

deviceid Unique identifier of the device

user_created User who created this device in the database

name Name of the device

description Description of the device

date_created The date device is saved to the database (YY/MM/DD)

date_updated The date device is updated (YY/MM/DD)

Variable Description

publicationid Auto-assigned integer identifier for the publication

pub_label Optional user-assigned label for this publication (e.g. 'Smith2023')

correspauthor_firstname First name of the corresponding author

correspauthor_lastname Last name of the corresponding author

citation Citation of the publication

DOI Digital Object Identifier (DOI) — a unique key for the publication