ITER Physics Data Model Documentation for mhd

Magnetohydrodynamic activity, description of perturbed fields and profiles using the Generic Grid Description.

Notation of array of structure indices: itime indicates a time index; i1, i2, i3, ... indicate other indices with their depth in the IDS. This notation clarifies the path of a given node, but should not be used to compare indices of different nodes (they may have different meanings).

Lifecycle status: alpha since version 3.20.0

Last change occured on version: 3.37.0

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Full path name Description Data Type Coordinates
ids_properties Interface Data Structure properties. This element identifies the node above as an IDS structure
ids_properties/comment Any comment describing the content of this IDS {constant} STR_0D
ids_properties/homogeneous_time This node must be filled (with 0, 1, or 2) for the IDS to be valid. If 1, the time of this IDS is homogeneous, i.e. the time values for this IDS are stored in the time node just below the root of this IDS. If 0, the time values are stored in the various time fields at lower levels in the tree. In the case only constant or static nodes are filled within the IDS, homogeneous_time must be set to 2 {constant} INT_0D
ids_properties/source
Lifecycle status: obsolescent since version 3.34.0
Source of the data (any comment describing the origin of the data : code, path to diagnostic signals, processing method, ...). Superseeded by the new provenance structure. {constant} STR_0D
ids_properties/provider Name of the person in charge of producing this data {constant} STR_0D
ids_properties/creation_date Date at which this data has been produced {constant} STR_0D
ids_properties/version_put Version of the access layer package used to PUT this IDS structure
ids_properties/version_put/data_dictionary Version of Data Dictionary used to PUT this IDS {constant} STR_0D
ids_properties/version_put/access_layer Version of Access Layer used to PUT this IDS {constant} STR_0D
ids_properties/version_put/access_layer_language Programming language of the Access Layer high level API used to PUT this IDS {constant} STR_0D
ids_properties/provenance
Lifecycle status: alpha since version 3.34.0
Provenance information about this IDS structure
ids_properties/provenance/node(i1) Set of IDS nodes for which the provenance is given. The provenance information applies to the whole structure below the IDS node. For documenting provenance information for the whole IDS, set the size of this array of structure to 1 and leave the child "path" node empty {constant} struct_array [max_size=20 (limited in MDS+ backend only)] 1- 1...N
ids_properties/provenance/node(i1)/path Path of the node within the IDS, following the syntax given in the link below. If empty, means the provenance information applies to the whole IDS. Click here for further documentation. {constant} STR_0D
ids_properties/provenance/node(i1)/sources(:) List of sources used to import or calculate this node, identified as explained below. In case the node is the result of of a calculation / data processing, the source is an input to the process described in the "code" structure at the root of the IDS. The source can be an IDS (identified by a URI or a persitent identifier, see syntax in the link below) or non-IDS data imported directly from an non-IMAS database (identified by the command used to import the source, or the persistent identifier of the data source). Often data are obtained by a chain of processes, however only the last process input are recorded here. The full chain of provenance has then to be reconstructed recursively from the provenance information contained in the data sources. Click here for further documentation. {constant} STR_1D 1- 1...N
ids_properties/plugins
Lifecycle status: alpha since version 3.39.0
Information about the plugins used to write/read this IDS. This structure is filled automatically by the Access Layer at GET/PUT time, no need to fill it via a user program.. Introduced after DD version 3.38.1 structure
ids_properties/plugins/node(i1) Set of IDS nodes for which a plugin has been applied {constant} struct_array [max_size=20 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/path Path of the node within the IDS, following the syntax given in the link below. If empty, means the plugin applies to the whole IDS. Click here for further documentation. {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2) Plugins used to PUT a node (potentially, multiple plugins can be applied, if so they are listed by order of application) struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/put_operation(i2)/name Name of software used {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/repository URL of software repository {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/parameters List of the code specific parameters in XML format {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2) Plugins to be used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application) struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/readback(i2)/name Name of software used {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/node(i1)/readback(i2)/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/repository URL of software repository {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/parameters List of the code specific parameters in XML format {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2) Plugins actually used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application). This information is filled by the plugin infrastructure during the GET operation. struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/get_operation(i2)/name Name of software used {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/repository URL of software repository {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/parameters List of the code specific parameters in XML format {constant} STR_0D
ids_properties/plugins/infrastructure_put Plugin infrastructure used to PUT the data structure
ids_properties/plugins/infrastructure_put/name Name of software used {constant} STR_0D
ids_properties/plugins/infrastructure_put/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/infrastructure_put/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/infrastructure_put/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/infrastructure_put/repository URL of software repository {constant} STR_0D
ids_properties/plugins/infrastructure_get Plugin infrastructure used to GET the data structure
ids_properties/plugins/infrastructure_get/name Name of software used {constant} STR_0D
ids_properties/plugins/infrastructure_get/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/infrastructure_get/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/infrastructure_get/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/infrastructure_get/repository URL of software repository {constant} STR_0D
grid_ggd(itime) Grid (using the Generic Grid Description), for various time slices. The timebase of this array of structure must be a subset of the ggd timebase {dynamic} struct_array 1- grid_ggd(itime)/time
grid_ggd(itime)/identifier Grid identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
linear 1 Linear
cylinder 2 Cylindrical geometry (straight in axial direction)
limiter 3 Limiter
SN 4 Single null
CDN 5 Connected double null
DDN_bottom 6 Disconnected double null with inner X-point below the midplane
DDN_top 7 Disconnected double null with inner X-point above the midplane
annulus 8 Annular geometry (not necessarily with straight axis)
stellarator_island 9 Stellarator island geometry
structured_spaces 10 Structured grid represented with multiple spaces of dimension 1
LFS_snowflake_minus 11 Snowflake grid with secondary x point on the low field side, and the secondary separatrix on top of the primary
LFS_snowflake_plus 12 Snowflake grid with secondary x point to the right of the primary, and the secondary separatrix below the primary
reference 100 Refers to a GGD described in another IDS indicated by grid_path. In such a case, do not fill the grid_ggd node of this IDS
structure
grid_ggd(itime)/identifier/name Short string identifier {dynamic} STR_0D
grid_ggd(itime)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grid_ggd(itime)/identifier/description Verbose description {dynamic} STR_0D
grid_ggd(itime)/path Path of the grid, including the IDS name, in case of implicit reference to a grid_ggd node described in another IDS. To be filled only if the grid is not described explicitly in this grid_ggd structure. Example syntax: IDS::wall/0/description_ggd(1)/grid_ggd, means that the grid is located in the wall IDS, occurrence 0, with relative path description_ggd(1)/grid_ggd, using Fortran index convention (here : first index of the array) {dynamic} STR_0D
grid_ggd(itime)/space(i1) Set of grid spaces Click here for further documentation (or contact imas@iter.org if you can't access this page). struct_array 1- 1...N
grid_ggd(itime)/space(i1)/identifier Space identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
primary_standard 1 Primary space defining the standard grid
primary_staggered 2 Primary space defining a grid staggered with respect to the primary standard space
secondary_structured 3 Secondary space defining additional dimensions that extend the primary standard space in a structured way
structure
grid_ggd(itime)/space(i1)/identifier/name Short string identifier {dynamic} STR_0D
grid_ggd(itime)/space(i1)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grid_ggd(itime)/space(i1)/identifier/description Verbose description {dynamic} STR_0D
grid_ggd(itime)/space(i1)/geometry_type Type of space geometry (0: standard, 1:Fourier, >1: Fourier with periodicity) structure
grid_ggd(itime)/space(i1)/geometry_type/name Short string identifier {dynamic} STR_0D
grid_ggd(itime)/space(i1)/geometry_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grid_ggd(itime)/space(i1)/geometry_type/description Verbose description {dynamic} STR_0D
grid_ggd(itime)/space(i1)/coordinates_type(:) Type of coordinates describing the physical space, for every coordinate of the space. The size of this node therefore defines the dimension of the space. The meaning of these predefined integer constants can be found in the Data Dictionary under utilities/coordinate_identifier.xml Click here for further documentation. {dynamic} INT_1D 1- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2) Definition of the space objects for every dimension (from one to the dimension of the highest-dimensional objects). The index correspond to 1=nodes, 2=edges, 3=faces, 4=cells/volumes, .... For every index, a collection of objects of that dimension is described. struct_array 1- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3) Set of objects for a given dimension struct_array 1- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3)/boundary(i4) Set of (n-1)-dimensional objects defining the boundary of this n-dimensional object struct_array 1- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3)/boundary(i4)/index Index of this (n-1)-dimensional boundary object {dynamic} INT_0D
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3)/boundary(i4)/neighbours(:) List of indices of the n-dimensional objects adjacent to the given n-dimensional object. An object can possibly have multiple neighbours on a boundary {dynamic} INT_1D 1- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3)/geometry(:) Geometry data associated with the object, its detailed content is defined by ../../geometry_content. Its dimension depends on the type of object, geometry and coordinate considered. {dynamic} [mixed] FLT_1D 1- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3)/nodes(:) List of nodes forming this object (indices to objects_per_dimension(1)%object(:) in Fortran notation) {dynamic} INT_1D 1- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3)/measure Measure of the space object, i.e. physical size (length for 1d, area for 2d, volume for 3d objects,...) {dynamic} [m^dimension] FLT_0D
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/object(i3)/geometry_2d(:,:) 2D geometry data associated with the object. Its dimension depends on the type of object, geometry and coordinate considered. Typically, the first dimension represents the object coordinates, while the second dimension would represent the values of the various degrees of freedom of the finite element attached to the object. {dynamic} [mixed]. Introduced after DD version 3.35.0 FLT_2D 1- 1...N
2- 1...N
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/geometry_content Content of the ../object/geometry node for this dimension. Introduced after DD version 3.33.0. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
node_coordinates 1 For nodes : node coordinates
node_coordinates_connection 11 For nodes : node coordinates, then connection length, and distance in the poloidal plane to the nearest solid surface outside the separatrix
edge_areas 21 For edges : contains 3 surface areas after uniform extension in the third dimension of the edges. Geometry(1) and geometry(2) are the projections of that area along the local poloidal and radial coordinate respectively. Geometry(3) is the full surface area of the extended edge
face_indices_volume 31 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces
face_indices_volume_connection 32 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces. The fourth element is the connection length. The fifth element is the distance in the poloidal plane to the nearest solid surface outside the separatrix
structure
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/geometry_content/name Short string identifier {dynamic} STR_0D
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/geometry_content/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grid_ggd(itime)/space(i1)/objects_per_dimension(i2)/geometry_content/description Verbose description {dynamic} STR_0D
grid_ggd(itime)/grid_subset(i1) Grid subsets struct_array 1- 1...N
grid_ggd(itime)/grid_subset(i1)/identifier Grid subset identifier Click here for further documentation.. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
nodes 1 All nodes (0D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure). In case of a structured grid represented with multiple 1D spaces, the order of the implicit elements in the grid_subset follows Fortran ordering, i.e. iterate always on nodes of the first space first, then move to the second node of the second space, ... : [((s1_1 to s1_end), s2_1, s3_1 ... sN_1), (((s1_1 to s1_end), s2_2, s3_1, ... sN_1)), ... ((s1_1 to s1_end), s2_end, s3_end ... sN_end)]
nodes_combining_spaces 200 All nodes (0D) belonging to the first space, implicitly extended in other dimensions represented by the other spaces in a structured way. The number of subset elements is thus equal to the number of nodes in the first space. Implicit declaration (no need to replicate the grid elements in the grid_subset structure).
edges 2 All edges (1D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_aligned_edges 3 All x-aligned (poloidally) aligned edges belonging to the associated spaces
y_aligned_edges 4 All y-aligned (radially) aligned edges belonging to the associated spaces
cells 5 All cells (2D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_points 6 Nodes defining x-points
core_cut 7 y-aligned edges inside the separatrix connecting to the active x-point
PFR_cut 8 y-aligned edges in the private flux region connecting to the active x-point
outer_throat 9 y-aligned edges in the outer SOL connecting to the active x-point
inner_throat 10 y-aligned edges in the inner SOL connecting to the active x-point
outer_midplane 11 y-aligned edges connecting to the node closest to outer midplane on the separatrix
inner_midplane 12 y-aligned edges connecting to the node closest to inner midplane on the separatrix
outer_target 13 y-aligned edges defining the outer target
inner_target 14 y-aligned edges defining the inner target
core_boundary 15 Innermost x-aligned edges
separatrix 16 x-aligned edges defining the active separatrix
main_chamber_wall 17 x-aligned edges defining main chamber wall outside of the divertor regions
outer_baffle 18 x-aligned edges defining the chamber wall of the outer active divertor region
inner_baffle 19 x-aligned edges defining the chamber wall of the inner active divertor region
outer_PFR_wall 20 x-aligned edges defining the private flux region wall of the outer active divertor region
inner_PFR_wall 21 x-aligned edges defining the private flux region wall of the inner active divertor region
core 22 Cells inside the active separatrix
sol 23 Cells defining the main SOL outside of the divertor regions
outer_divertor 24 Cells defining the outer divertor region
inner_divertor 25 Cells defining the inner divertor region
core_sol 26 x-aligned edges defining part of active separatrix separating core and sol
full_main_chamber_wall 27 main_chamber_wall + outer_baffle(s) + inner_baffle(s)
full_PFR_wall 28 outer_PFR__wall(s) + inner_PFR_wall(s)
core_cut_X2 29 y-aligned edges inside the separatrix connecting to the non-active x-point
PFR_cut_X2 30 y-aligned edges in the private flux region connecting to the non-active x-point
outer_throat_X2 31 y-aligned edges in the outer SOL connecting to the non-active x-point
inner_throat_X2 32 y-aligned edges in the inner SOL connecting to the non-active x-point
separatrix_2 33 x-aligned edges defining the non-active separatrix
outer_baffle_2 34 x-aligned edges defining the chamber wall of the outer non-active divertor region
inner_baffle_2 35 x-aligned edges defining the chamber wall of the inner non-active divertor region
outer_PFR_wall_2 36 x-aligned edges defining the private flux region wall of the outer non-active divertor region
inner_PFR_wall_2 37 x-aligned edges defining the private flux region wall of the inner non-active divertor region
intra_sep 38 Cells between the two separatrices
outer_divertor_2 39 Cells defining the outer inactive divertor region
inner_divertor_2 40 Cells defining the inner inactive divertor region
outer_target_2 41 y-aligned edges defining the outer inactive target
inner_target_2 42 y-aligned edges defining the inner inactive target
volumes 43 All volumes (3D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
full_wall 44 All edges defining walls, baffles, and targets
outer_sf_leg_entrance_1 45 y-aligned edges defining the SOL entrance of the first snowflake outer leg
outer_sf_leg_entrance_2 46 y-aligned edges defining the SOL entrance of the third snowflake outer leg
outer_sf_pfr_connection_1 47 y-aligned edges defining the connection between the outer snowflake entrance and third leg
outer_sf_pfr_connection_2 48 y-aligned edges defining the connection between the outer snowflake first and second leg
magnetic_axis 100 Point corresponding to the magnetic axis
outer_mid_plane_separatrix 101 Point on active separatrix at outer mid-plane
inner_mid_plane_separatrix 102 Point on active separatrix at inner mid-plane
outer_target_separatrix 103 Point on active separatrix at outer active target
inner_target_separatrix 104 Point on active separatrix at inner active target
outer_target_separatrix_2 105 Point on non-active separatrix at outer non-active target
inner_target_separatrix_2 106 Point on non-active separatrix at inner non-active target
structure
grid_ggd(itime)/grid_subset(i1)/identifier/name Short string identifier {dynamic} STR_0D
grid_ggd(itime)/grid_subset(i1)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grid_ggd(itime)/grid_subset(i1)/identifier/description Verbose description {dynamic} STR_0D
grid_ggd(itime)/grid_subset(i1)/dimension Space dimension of the grid subset elements. This must be equal to the sum of the dimensions of the individual objects forming the element. {dynamic} INT_0D
grid_ggd(itime)/grid_subset(i1)/element(i2) Set of elements defining the grid subset. An element is defined by a combination of objects from potentially all spaces struct_array 1- 1...N
grid_ggd(itime)/grid_subset(i1)/element(i2)/object(i3) Set of objects defining the element struct_array 1- 1...N
grid_ggd(itime)/grid_subset(i1)/element(i2)/object(i3)/space Index of the space from which that object is taken {dynamic} INT_0D
grid_ggd(itime)/grid_subset(i1)/element(i2)/object(i3)/dimension Dimension of the object {dynamic} INT_0D
grid_ggd(itime)/grid_subset(i1)/element(i2)/object(i3)/index Object index {dynamic} INT_0D
grid_ggd(itime)/grid_subset(i1)/base(i2) Set of bases for the grid subset. For each base, the structure describes the projection of the base vectors on the canonical frame of the grid. struct_array 1- 1...N
grid_ggd(itime)/grid_subset(i1)/base(i2)/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- grid_ggd(itime)/grid_subset(i1)/element
grid_ggd(itime)/grid_subset(i1)/base(i2)/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grid_ggd(itime)/grid_subset(i1)/element
2- 1...N
3- 1...N
grid_ggd(itime)/grid_subset(i1)/base(i2)/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grid_ggd(itime)/grid_subset(i1)/element
2- 1...N
3- 1...N
grid_ggd(itime)/grid_subset(i1)/metric Metric of the canonical frame onto Cartesian coordinates structure
grid_ggd(itime)/grid_subset(i1)/metric/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- grid_ggd(itime)/grid_subset(i1)/element
grid_ggd(itime)/grid_subset(i1)/metric/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grid_ggd(itime)/grid_subset(i1)/element
2- 1...N
3- 1...N
grid_ggd(itime)/grid_subset(i1)/metric/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grid_ggd(itime)/grid_subset(i1)/element
2- 1...N
3- 1...N
grid_ggd(itime)/time Time {dynamic} [s] FLT_0D
ggd(itime) Edge plasma quantities represented using the general grid description, for various time slices. {dynamic} struct_array 1- ggd(itime)/time
ggd(itime)/electrons Quantities related to the electrons structure
ggd(itime)/electrons/temperature(i1) Temperature, given on various grid subsets [eV] struct_array 1- 1...N
ggd(itime)/electrons/temperature(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/electrons/temperature(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/electrons/temperature(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/electrons/temperature(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/electrons/temperature(i1)/values
2- 1...N
ggd(itime)/t_i_average(i1) Ion temperature (averaged on ion species), given on various grid subsets [eV] struct_array 1- 1...N
ggd(itime)/t_i_average(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/t_i_average(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/t_i_average(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/t_i_average(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/t_i_average(i1)/values
2- 1...N
ggd(itime)/n_i_total(i1) Total ion density (sum over ion species and thermal+non-thermal), given on various grid subsets [m^-3] struct_array 1- 1...N
ggd(itime)/n_i_total(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/n_i_total(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/n_i_total(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/n_i_total(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/n_i_total(i1)/values
2- 1...N
ggd(itime)/zeff(i1) Effective charge, given on various grid subsets [-] struct_array 1- 1...N
ggd(itime)/zeff(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/zeff(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/zeff(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/zeff(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/zeff(i1)/values
2- 1...N
ggd(itime)/b_field_r(i1) R component of the magnetic field, given on various grid subsets [T] struct_array 1- 1...N
ggd(itime)/b_field_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/b_field_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/b_field_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/b_field_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/b_field_r(i1)/values
2- 1...N
ggd(itime)/b_field_z(i1) Z component of the magnetic field, given on various grid subsets [T] struct_array 1- 1...N
ggd(itime)/b_field_z(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/b_field_z(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/b_field_z(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/b_field_z(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/b_field_z(i1)/values
2- 1...N
ggd(itime)/b_field_tor(i1) Toroidal component of the magnetic field, given on various grid subsets [T] struct_array 1- 1...N
ggd(itime)/b_field_tor(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/b_field_tor(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/b_field_tor(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/b_field_tor(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/b_field_tor(i1)/values
2- 1...N
ggd(itime)/a_field_r(i1) R component of the magnetic vector potential, given on various grid subsets [T.m] struct_array 1- 1...N
ggd(itime)/a_field_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/a_field_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/a_field_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/a_field_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/a_field_r(i1)/values
2- 1...N
ggd(itime)/a_field_z(i1) Z component of the magnetic vector potential, given on various grid subsets [T.m] struct_array 1- 1...N
ggd(itime)/a_field_z(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/a_field_z(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/a_field_z(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/a_field_z(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/a_field_z(i1)/values
2- 1...N
ggd(itime)/a_field_tor(i1) Toroidal component of the magnetic vector potential, given on various grid subsets [T.m] struct_array 1- 1...N
ggd(itime)/a_field_tor(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/a_field_tor(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/a_field_tor(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/a_field_tor(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/a_field_tor(i1)/values
2- 1...N
ggd(itime)/psi(i1) Poloidal flux, given on various grid subsets [Wb] struct_array 1- 1...N
ggd(itime)/psi(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/psi(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/psi(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/psi(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/psi(i1)/values
2- 1...N
ggd(itime)/velocity_r(i1) R component of the plasma velocity, given on various grid subsets [m.s^-1] struct_array 1- 1...N
ggd(itime)/velocity_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/velocity_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/velocity_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/velocity_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/velocity_r(i1)/values
2- 1...N
ggd(itime)/velocity_z(i1) Z component of the plasma velocity, given on various grid subsets [m.s^-1] struct_array 1- 1...N
ggd(itime)/velocity_z(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/velocity_z(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/velocity_z(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/velocity_z(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/velocity_z(i1)/values
2- 1...N
ggd(itime)/velocity_tor(i1) Toroidal component of the plasma velocity, given on various grid subsets [m.s^-1] struct_array 1- 1...N
ggd(itime)/velocity_tor(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/velocity_tor(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/velocity_tor(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/velocity_tor(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/velocity_tor(i1)/values
2- 1...N
ggd(itime)/velocity_parallel(i1) Parallel (to magnetic field) component of the plasma velocity, given on various grid subsets [m.s^-1] struct_array 1- 1...N
ggd(itime)/velocity_parallel(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/velocity_parallel(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/velocity_parallel(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/velocity_parallel(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/velocity_parallel(i1)/values
2- 1...N
ggd(itime)/velocity_parallel_over_b_field(i1) Parallel (to magnetic field) component of the plasma velocity divided by the modulus of the local magnetic field, given on various grid subsets [m.s^-1.T^-1]. Introduced after DD version 3.36.0 struct_array 1- 1...N
ggd(itime)/velocity_parallel_over_b_field(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/velocity_parallel_over_b_field(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/velocity_parallel_over_b_field(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/velocity_parallel_over_b_field(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/velocity_parallel_over_b_field(i1)/values
2- 1...N
ggd(itime)/phi_potential(i1) Electric potential, given on various grid subsets [V] struct_array 1- 1...N
ggd(itime)/phi_potential(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/phi_potential(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/phi_potential(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/phi_potential(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/phi_potential(i1)/values
2- 1...N
ggd(itime)/vorticity(i1) Vorticity, given on various grid subsets [s^-1] struct_array 1- 1...N
ggd(itime)/vorticity(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/vorticity(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/vorticity(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/vorticity(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/vorticity(i1)/values
2- 1...N
ggd(itime)/vorticity_over_r(i1) Vorticity divided by the local major radius, given on various grid subsets [m^-1.s^-1]. Introduced after DD version 3.36.0 struct_array 1- 1...N
ggd(itime)/vorticity_over_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/vorticity_over_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/vorticity_over_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/vorticity_over_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/vorticity_over_r(i1)/values
2- 1...N
ggd(itime)/j_r(i1) R component of the current density, given on various grid subsets [A.m^-2] struct_array 1- 1...N
ggd(itime)/j_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/j_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/j_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/j_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/j_r(i1)/values
2- 1...N
ggd(itime)/j_z(i1) Z component of the current density, given on various grid subsets [A.m^-2] struct_array 1- 1...N
ggd(itime)/j_z(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/j_z(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/j_z(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/j_z(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/j_z(i1)/values
2- 1...N
ggd(itime)/j_tor(i1) Toroidal component of the current density, given on various grid subsets [A.m^-2] struct_array 1- 1...N
ggd(itime)/j_tor(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/j_tor(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/j_tor(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/j_tor(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/j_tor(i1)/values
2- 1...N
ggd(itime)/j_tor_r(i1) Toroidal component of the current density multiplied by the local major radius, given on various grid subsets [A.m^-1]. Introduced after DD version 3.36.0 struct_array 1- 1...N
ggd(itime)/j_tor_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/j_tor_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/j_tor_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/j_tor_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/j_tor_r(i1)/values
2- 1...N
ggd(itime)/mass_density(i1) Mass density, given on various grid subsets [kg.m^-3] struct_array 1- 1...N
ggd(itime)/mass_density(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
ggd(itime)/mass_density(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
ggd(itime)/mass_density(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
ggd(itime)/mass_density(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- ggd(itime)/mass_density(i1)/values
2- 1...N
ggd(itime)/time Time {dynamic} [s] FLT_0D
code Generic decription of the code-specific parameters for the code that has produced this IDS structure
code/name Name of software generating IDS {constant} STR_0D
code/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
code/commit Unique commit reference of software {constant} STR_0D
code/version Unique version (tag) of software {constant} STR_0D
code/repository URL of software repository {constant} STR_0D
code/parameters List of the code specific parameters in XML format {constant} STR_0D
code/output_flag(:) Output flag : 0 means the run is successful, other values mean some difficulty has been encountered, the exact meaning is then code specific. Negative values mean the result shall not be used. {dynamic} INT_1D 1- time
code/library(i1) List of external libraries used by the code that has produced this IDS struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
code/library(i1)/name Name of software {constant} STR_0D
code/library(i1)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
code/library(i1)/commit Unique commit reference of software {constant} STR_0D
code/library(i1)/version Unique version (tag) of software {constant} STR_0D
code/library(i1)/repository URL of software repository {constant} STR_0D
code/library(i1)/parameters List of the code specific parameters in XML format {constant} STR_0D
time(:) Generic time {dynamic} [s] FLT_1D 1- 1...N

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