Identifier |
PrefLabel |
Definition |
Date |

CSPGRID |
Compressed spatial grid |
The series has data stored in a 2D array, having cycle number as the primary dimension (rank 1) variable and both latitude and longitude as the secondary dimension (rank 0) variables. Used in BODC for compact storage of spatial grids in QXF. |
2014-12-17 |

CSPGRSER |
Compressed spatial grid series |
The series has data stored in a set of 2D arrays along a time dimension (i.e. a time series of compressed grids). Each has cycle number as the primary dimension variable and both latitude and longitude as the secondary dimension variables. Used in BODC for compact storage of spatial grid series (e.g. OSCR data) in QXF. |
2013-10-02 |

POINT |
Point time series |
The series has a single set of measurements at a fixed position and elevation varying with time. Time and data parameters are stored along the primary dimension (rank 1). Position and the z co-ordinate (depth or height) are stored in metadata. |
2014-12-17 |

POLYSER |
Polygon time series |
The series has a single set of measurements valid along the whole of a fixed area (e.g. flow from a submarine cable that has been relocated during the series) and fixed elevation or elevation range varying with time. Time and data parameters are stored along the primary dimension (rank 1). Position and the z co-ordinate(s) (depth or height) are stored in metadata. |
2015-01-28 |

PROFCOLL |
Profile collection |
The series has sets of measurements at multiple but constant elevations varying with both position and time. Time and horizontal spatial (e.g. latitude and longitude) coordinates are stored along the primary dimension (rank 1) with a z co-ordinate (depth or height) stored along the secondary dimension (rank 0). Data parameters are in 2D arrays (rank 2). |
2014-12-17 |

PROFSER |
Profile time series |
The series has a set of measurements at a fixed position and multiple but fixed elevations at different times. Time is stored along the primary dimension (rank 1). The z co-ordinate (depth/height) is stored along the secondary dimension (rank 0). Horizontal spatial co-ordinates (e.g. latitude and longitude) are stored in metadata. |
2014-12-17 |

DPROF |
Profile with depth |
The series has a single set of instantaneous measurements at a fixed position over a vertical range (z). Z co-ordinates are included along the primary dimension (rank 1) as depth. Time and position are stored as metadata. |
2014-12-17 |

PPROF |
Profile with pressure |
The series has a single set of instantaneous measurements at a fixed position over a vertical range (z). Data and z co-ordinate (as pressure) are included along the primary dimension (rank 1). Time and position are stored as metadata. |
2014-12-17 |

PDPROF |
Profile with pressure and depth |
The series has a single set of instantaneous measurements at a fixed position over a vertical range (z). Z co-ordinates are included along the primary dimension (rank 1) as both pressure and depth. Time and position are stored as metadata. |
2014-12-17 |

YOYO |
Repeated continuous profiles |
The series has a set of measurements at a fixed position with elevation continuously varying (values potentially different for each oscillation) over time. QXF must include both a time channel and a z co-ordinate channel on the primary (rank 1) dimension along with the data parameters. Examples are wire-crawler moorings and repeated CTD casts that have neither been binned nor split into discrete profiles. Position is held in metadata. |
2014-12-17 |

SECTSER |
Section time series |
The series has a single set of measurements valid along the whole of a fixed section (e.g. flow from a submarine cable) and fixed elevation or elevation range varying with time. Time and data parameters are stored along the primary dimension (rank 1). Position and the z co-ordinate(s) (depth or height) are stored in metadata. |
2015-01-28 |

SPPOINT |
Single point Point time series |
The series has a single set of measurements at a fixed position, elevation and time. Time and data parameters are stored along the primary dimension (rank 1). Position and the z co-ordinate (depth or height) are stored in metadata. This is to cover series that would be a time series i.e. POINT if there was more than one point. |
2018-09-20 |

SPDPROF |
Single point Profile with depth |
The series has a single set of instantaneous measurements at a fixed position and elevation. Z co-ordinates are included along the primary dimension (rank 1) as depth. Time and position are stored as metadata. This is to cover series that would be a profile if there was more than one point. |
2018-09-20 |

SPPPROF |
Single point Profile with pressure |
The series has a single set of instantaneous measurements at a fixed position and elevation. Data and z co-ordinate (as pressure) are included along the primary dimension (rank 1). Time and position are stored as metadata. This is to cover series that would be a profile if there was more than one point. |
2018-09-20 |

SPPDPROF |
Single point Profile with pressure and depth |
The series has a single set of instantaneous measurements at a fixed position and elevation. Z co-ordinates are included along the primary dimension (rank 1) as both pressure and depth. Time and position are stored as metadata. This is to cover series that would be a profile if there was more than one point. |
2018-09-20 |

SPTRAJ |
Single point Trajectory |
The series has measurements at a single fixed elevation, position and time. Time and horizontal spatial (e.g. latitude and longitude) coordinates together with data are stored along the primary dimension (rank 1). The z co-ordinate (depth or height) is stored in metadata. This is to cover series that would be TRAJ if there was more than one point. |
2018-09-20 |

SPGRID |
Spatial Grid |
The series has one set of measurements per parameter stored in a 2-D array described by two co-ordinate variables that are horizontal spatial co-ordinates (e.g. latitude and longitude) with longitude along the primary dimension (rank 1) and latitude along the secondary (rank 0). Measurements could either be a single time-snapshot or considered time-independent. |
2014-12-17 |

SPECPROF |
Spectrum profile |
The series has a set of measurements at a fixed position and time but varying depths. Each measurement constitutes a spectrum with a non-spatial variable (e.g. grain size or bin number) on the secondary dimension (rank 0). The primary dimension (rank 1) includes a z co-ordinate (depth). Time and position are held as metadata. |
2014-12-17 |

SPTRAJ3D |
Spectrum three-dimensional trajectory |
The series has a set of measurements at variable times, depths and locations. Each measurement constitutes a spectrum with a non-spatial variable (e.g. grain size or bin number) on the secondary (rank 0)dimension. The primary (rank 1) dimension includes position, time variables and depth variable. |
2014-12-17 |

SPECSER |
Spectrum time series |
The series has a set of measurements at a fixed position and multiple but fixed z co-ordinate values that are not elevation (e.g. frequency or size class) varying with time. Time is stored along the primary dimension (rank 1) and the z co-ordinate along the secondary dimension (rank 0). The data parameters are 2D arrays (rank 2). Position is stored in metadata. |
2014-12-17 |

SPECTRAJ |
Spectrum trajectory |
The series has a set of measurements at a fixed depth but variable times and locations. Each measurement constitutes a spectrum with a non-spatial variable (e.g. grain size or bin number) on the secondary dimension (rank 0). The primary dimension (rank 1) includes position and time variables, but no depth variable. Depth is stored in metadata. |
2014-12-17 |

TRAJ3D |
Three Dimensional Trajectory |
The series has measurements at independently varying position and elevation as a function of time. Time, horizontal (e.g. latitude and longitude) and vertical (e.g. depth/height) coordinates together with data are stored along the primary dimension (rank 1). 2D trajectories may be stored as this feature type by including a z co-ordinate array set to a constant value. |
2014-12-17 |

TRAJ |
Trajectory |
The series has measurements at a single fixed elevation varying with both position and time. Time and horizontal spatial (e.g. latitude and longitude) coordinates together with data are stored along the primary dimension (rank 1). The z co-ordinate (depth or height) is stored in metadata. |
2014-12-17 |

2DSPCSER |
Two-dimensional spectrum time series |
The series is a time series of measurements in which each measurement has two dimensions such as directional wave spectra. In CF-compliant NetCDF this example data type would be stored in a 3D array with co-ordinates time, frequency and direction. As QXF is limited to two dimensions the data are stored in a 2D array with time as a rank 1 variable and two rank 0 variables (frequency and direction) that are both required to describe a single row. So, for directional wave spectra with 10 frequencies, 10 direction bins and 50 time steps the CF array would have dimensions (50,10,10) and the QXF array (50,100). Position and z co-ordinate are stored in metadata. |
2016-12-06 |

VPRFCOLL |
Variable-depth profile collection |
The series has a set of measurements along a trajectory (variable times and locations) at multiple depths that can possibly vary from measurement to measurement. Each measurement constitutes a spectrum with a non-spatial variable (generally bin number) on the secondary (rank 0) dimension. The primary (rank 1) dimension includes position and time variables. The z co-ordinate (depth or height) is carried with the data variables as 2D (rank 2) arrays. |
2014-12-17 |

VPRFSER |
Variable-depth profile time series |
The series has a set of measurements over time at a fixed point (position stored in metadata) and at multiple depths that can possibly vary from measurement to measurement. Each measurement constitutes a spectrum with a non-spatial variable (generally bin number) on the secondary (rank 0) dimension. The primary (rank 1) dimension includes the time variable. The z co-ordinate (depth or height) is carried with the data variables as 2D (rank 2) arrays. |
2014-12-17 |