Non-ISTP Mission Variable Attributes¶
M - mandatory by mission
R - recommended by mission
O - optional for mission
Attributes |
ISTP alternative |
Cluster |
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GOLD |
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MMS |
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PRBEM |
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Solar Orbiter |
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M |
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R |
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M |
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M |
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O |
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O |
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M |
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M |
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O |
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R |
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M |
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M |
M |
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M |
R |
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M |
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M |
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M |
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M |
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M |
M |
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M |
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M |
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M |
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M |
Descriptions
_ChunkingSizes — netCDF attribute which controls the data arrangement.
COORDINATE_SYSTEM — For nonscalar data, contains coordinate system name, e.g. "HCI" or "RTN".
DATA — (Cluster CEF only.) Used to provide the values of variables which are fixed for all records of a dataset.
_DeflateLevel — ZLIB compression level from 0 to 9. ICON uses deflate level 6 by default.
DELTA_MINUS — Describes the range over which the data are integrated, representative, etc. and locate the position of the time tag or value within this range.
DELTA_PLUS — Describes the range over which the data are integrated, representative, etc. and locate the position of the time tag or value within this range.
_FillValue — Used by netCDF to fill in data that was not explicitly set. This is typed data.
FRAME — Optional and partially redundant with the more powerful description provided by the three concepts TENSOR_ORDER, REPRESENTATION, AND TENSOR_FRAME.
long_name — A description of the data item in string format similar to the ISTP CATDESC.
L_value — (Dipole) L value of the location of station.
REPRESENTATION_i- Pointer to a support variable that gives the representation (["x","y","z"] for Cartesian; ["r","p","t"] for spherical polar; ["r","p","z"] for cylindrical polar) of the i-th dimension of the variable.
_Shuffle — Enables byte shuffling in netCDF data set for optimized compression performance.
SI_CONVERSION — A string that defines the conversion needed to base SI units, e.g. "1.0E-9>T" for DC Magnetic field data in nT.
SIZES — (Cluster CEF only.) Essential for any variable that has more than one element, such as arrays and vectors.
TENSOR_FRAME — Contains the frame of a tensor.
TENSOR_ORDER — Contains the rank or order of a tensor, i.e. 1 for a vector, 2 for a 3x3 tensor.
valid_max — The netCDF maximum valid value which is of the same type as the variable. Skip this for strings or double/floats that are unlimited.
valid_min — The netCDF minimum valid value which is of the same type as the variable. Skip this for strings or double/floats that are unlimited.
valid_range — The netCDF two-element vector containing the minimum and maximum valid values.
VALUE_TYPE — (Cluster CEF only.) This identifies the data type and is necessary for conversion from the ascii entry.
