ITER Physics Data Model Documentation for turbulence

Description of plasma turbulence

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 3.12.1

Last change occured on version: 3.12.1

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By convention, only the upper error node should be filled in case of symmetrical error bars. The upper and lower errors are absolute and defined positive, and represent one standard deviation of the data. The effective values of the data (within one standard deviation) will be within the interval [data-data_error_lower, data+data_error_upper]. Thus whatever the sign of data, data_error_lower relates to the lower bound and data_error_upper to the upper bound of the error bar interval.

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_2d_type Selection of one of a set of grid types for grid_2d. Available options (refer to the children of this identifier structure) :
Name Index Description
rectangular 1 Cylindrical R,Z ala eqdsk (R=dim1, Z=dim2). In this case the position arrays should not be filled since they are redundant with grid/dim1 and dim2.
inverse 2 Rhopolar_polar 2D polar coordinates (rho=dim1, theta=dim2) with magnetic axis as centre of grid; theta and values following the COCOS=11 convention; the polar angle is theta=atan2(z-zaxis,r-raxis)
inverse_psi_straight_field_line 11 Flux surface type with psi as radial label (dim1) and the straight-field line poloidal angle (mod(index,10)=1) (dim2); could be non-equidistant; magnetic axis as centre of grid; following the COCOS=11 convention
inverse_psi_equal_arc 12 Flux surface type with psi as radial label (dim1) and the equal arc poloidal angle (mod(index,10)=2) (dim2)
inverse_psi_polar 13 Flux surface type with psi as radial label (dim1) and the polar poloidal angle (mod(index,10)=3) (dim2); could be non-equidistant
inverse_psi_straight_field_line_fourier 14 Flux surface type with psi as radial label (dim1) and Fourier modes in the straight-field line poloidal angle (mod(index,10)=4) (dim2), could be non-equidistant; magnetic axis as centre of grid; following the COCOS=11 convention
inverse_psi_equal_arc_fourier 15 Flux surface type with psi as radial label (dim1) and Fourier modes in the equal arc poloidal angle (mod(index,10)=5) (dim2)
inverse_psi_polar_fourier 16 Flux surface type with psi as radial label (dim1) and Fourier modes in the polar poloidal angle (mod(index,10)=6) (dim2); could be non-equidistant
inverse_rhopolnorm_straight_field_line 21 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and the straight-field line poloidal angle (dim2)
inverse_rhopolnorm_equal_arc 22 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and the equal arc poloidal angle (dim2)
inverse_rhopolnorm_polar 23 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and the polar poloidal angle (dim2)
inverse_rhopolnorm_straight_field_line_fourier 24 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhopolnorm_equal_arc_fourier 25 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhopolnorm_polar_fourier 26 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and Fourier modes in the polar poloidal angle (dim2)
inverse_rhotornorm_straight_field_line 31 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and the straight-field line poloidal angle (dim2)
inverse_rhotornorm_equal_arc 32 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and the equal arc poloidal angle (dim2)
inverse_rhotornorm_polar 33 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and the polar poloidal angle (dim2)
inverse_rhotornorm_straight_field_line_fourier 34 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhotornorm_equal_arc_fourier 35 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhotornorm_polar_fourier 36 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and Fourier modes in the polar poloidal angle (dim2)
inverse_rhopol_straight_field_line 41 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and the straight-field line poloidal angle (dim2)
inverse_rhopol_equal_arc 42 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and the equal arc poloidal angle (dim2)
inverse_rhopol_polar 43 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and the polar poloidal angle (dim2)
inverse_rhopol_straight_field_line_fourier 44 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhopol_equal_arc_fourier 45 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhopol_polar_fourier 46 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and Fourier modes in the polar poloidal angle (dim2)
inverse_rhotor_straight_field_line 51 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and the straight-field line poloidal angle (dim2)
inverse_rhotor_equal_arc 52 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and the equal arc poloidal angle (dim2)
inverse_rhotor_polar 53 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and the polar poloidal angle (dim2)
inverse_rhotor_straight_field_line_fourier 54 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhotor_equal_arc_fourier 55 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhotor_polar_fourier 56 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and Fourier modes in the polar poloidal angle (dim2)
irregular_rz_na 91 Irregular grid, thus give list of vertices in dim1(1:ndim1), dim2(1:ndim1) and then all fields are on values(1:ndim1,1)
structure
grid_2d_type/name Short string identifier {constant} STR_0D
grid_2d_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {constant} INT_0D
grid_2d_type/description Verbose description {constant} STR_0D
grid_2d(itime) Values for the 2D grid, for various time slices. The timebase of this array of structure must be a subset of the profiles_2d timebase {dynamic} struct_array 1- grid_2d(itime)/time
grid_2d(itime)/dim1(:) First dimension values {dynamic} [mixed] FLT_1D 1- 1...N
grid_2d(itime)/dim2(:) Second dimension values {dynamic} [mixed] FLT_1D 1- 1...N
grid_2d(itime)/time Time {dynamic} [s] FLT_0D
profiles_2d(itime) Fluctuating physical quantities for various time slices {dynamic} struct_array 1- profiles_2d(itime)/time
profiles_2d(itime)/electrons Quantities related to electrons structure
profiles_2d(itime)/electrons/temperature(:,:) Temperature {dynamic} [eV] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/electrons/density(:,:) Density (thermal+non-thermal) {dynamic} [m^-3] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/electrons/density_thermal(:,:) Density of thermal particles {dynamic} [m^-3] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/ion(i1) Quantities related to the various ion species struct_array 1- 1...N
profiles_2d(itime)/ion(i1)/element(i2) List of elements forming the atom or molecule struct_array 1- 1...N
profiles_2d(itime)/ion(i1)/element(i2)/a Mass of atom {dynamic} [Atomic Mass Unit] FLT_0D
profiles_2d(itime)/ion(i1)/element(i2)/z_n Nuclear charge {dynamic} [Elementary Charge Unit] FLT_0D
profiles_2d(itime)/ion(i1)/element(i2)/atoms_n Number of atoms of this element in the molecule {dynamic} INT_0D
profiles_2d(itime)/ion(i1)/element(i2)/multiplicity
Lifecycle status: obsolescent since version 3.15.0
Multiplicity of the atom {dynamic} [Elementary Charge Unit] FLT_0D
profiles_2d(itime)/ion(i1)/z_ion Ion charge (of the dominant ionisation state; lumped ions are allowed), volume averaged over plasma radius {dynamic} [Elementary Charge Unit] FLT_0D
profiles_2d(itime)/ion(i1)/label String identifying ion (e.g. H+, D+, T+, He+2, C+, ...) {dynamic} STR_0D
profiles_2d(itime)/ion(i1)/neutral_index Index of the corresponding neutral species in the ../../neutral array {dynamic} INT_0D
profiles_2d(itime)/ion(i1)/temperature(:,:) Temperature (average over charge states when multiple charge states are considered) {dynamic} [eV] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/ion(i1)/density(:,:) Density (thermal+non-thermal) (sum over charge states when multiple charge states are considered) {dynamic} [m^-3] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/ion(i1)/density_thermal(:,:) Density (thermal) (sum over charge states when multiple charge states are considered) {dynamic} [m^-3] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/neutral(i1) Quantities related to the various neutral species struct_array 1- 1...N
profiles_2d(itime)/neutral(i1)/element(i2) List of elements forming the atom or molecule struct_array 1- 1...N
profiles_2d(itime)/neutral(i1)/element(i2)/a Mass of atom {dynamic} [Atomic Mass Unit] FLT_0D
profiles_2d(itime)/neutral(i1)/element(i2)/z_n Nuclear charge {dynamic} [Elementary Charge Unit] FLT_0D
profiles_2d(itime)/neutral(i1)/element(i2)/atoms_n Number of atoms of this element in the molecule {dynamic} INT_0D
profiles_2d(itime)/neutral(i1)/element(i2)/multiplicity
Lifecycle status: obsolescent since version 3.15.0
Multiplicity of the atom {dynamic} [Elementary Charge Unit] FLT_0D
profiles_2d(itime)/neutral(i1)/label String identifying ion (e.g. H+, D+, T+, He+2, C+, ...) {dynamic} STR_0D
profiles_2d(itime)/neutral(i1)/ion_index Index of the corresponding ion species in the ../../ion array {dynamic} INT_0D
profiles_2d(itime)/neutral(i1)/temperature(:,:) Temperature (average over charge states when multiple charge states are considered) {dynamic} [eV] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/neutral(i1)/density(:,:) Density (thermal+non-thermal) (sum over charge states when multiple charge states are considered) {dynamic} [m^-3] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(itime)/neutral(i1)/density_thermal(:,:) Density (thermal) (sum over charge states when multiple charge states are considered) {dynamic} [m^-3] FLT_2D 1- grid_2d(itime)/dim1
2- grid_2d(itime)/dim2
profiles_2d(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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