Vocabulary
OceanGliders Parameter Usage Vocabulary
| URI | http://vocab.nerc.ac.uk/collection/OG1/current/ |
|---|---|
| Description | Terms in this vocabulary are under the content governance of the OceanGliders Data Management Task Team (OGDMTT) on behalf of the OceanGliders community. Terms describe measured phenomena within the OceanGliders format. |
| Creator | OceanGliders Data Management Task Team |
| Modified | 2025-07-08 |
| Version Info | 28 |
| Identifier | OG1 |
| Register Manager | British Oceanographic Data Centre |
| Register Owner | OceanGliders Data Management Task Team |
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Members
| ID ↑ | Preferred Label ↑ | Definition ↑ | Date ↑ |
|---|---|---|---|
| DIST_ALT | Altitude | Distance in meters from the transducer face to the target. | 2023-06-02 |
| DPHDOXY | Calibrated phase shift reported by oxygen sensor | D phase is calculated as a third degree polynomial of (the phase angle measured by blue excitation light minus the phase angle measured by red excitation light). | 2021-06-25 |
| CHLA | Chlorophyll-A | In-situ fluorometer with either manufacturer, laboratory or sample calibration applied. | 2018-06-01 |
| FDOM | Concentration of coloured dissolved organic matter expressed as quinine sulphate equivalent (FDOM) in seawater | The quantity of the optically measurable component of coloured (chromophoric) dissolved organic matter (CDOM) that fluoresces when excited with near ultra-violet (UV) light, measured in a unit volume of salt water by calibration against a quinine sulphate proxy. Often referred to as fluorescent dissolved organic matter (FDOM) when expressed as quinine sulphate equivalent. | 2024-09-09 |
| CDOM | Concentration of coloured dissolved organic matter in sea water | The quantity of coloured organic compounds in solution in unit volume of any body of water. | 2018-06-01 |
| PHYCOCYANIN | Concentration of phycocyanin by fluorometer | Phycocyanin concentration per unit volume of fresh or salt water. | 2024-10-21 |
| PHYC | Concentration of phycoerythrin by fluorometer | Phycoerythrin concentration per unit volume of fresh or salt water. | 2024-09-09 |
| COR_FACT | Correlation factor of acoustic signal by altimeter | Quality of the echo return from an altimeter, ranging from 0 to 1. A value of 1 represents a perfect return echo with negligible noise and distortion. | 2023-06-02 |
| CNTDOXY | Count reported by oxygen sensor | The raw output from a dissolved oxygen sensor such as an SBE43 with output converted from voltage or frequency into counts by an ADC. | 2018-06-01 |
| TCNTDOXY | Count which is expressive of uncalibrated temperature value reported by oxygen sensor | Count which is expressive of uncalibrated temperature value reported by oxygen sensor. | 2018-06-01 |
| DEPTH | Depth below sea surface (zero at sea level) of measurement platform | Depth below surface of the water body by unknown instrument and correction to zero at sea level using unspecified algorithm. | 2018-06-01 |
| DOXY | Dissolved oxygen | Concentration of dissolved oxygen per unit mass of the water column. Oxygen may be expressed in terms of mass, volume or quantity of substance. | 2018-06-01 |
| ED380 | Downwelling irradiance at 380 nanometers | The vertical component of light at 380nm wavelength travelling downwards. | 2024-07-30 |
| ED412 | Downwelling irradiance at 412 nanometers | The vertical component of light at 412nm wavelength travelling downwards. | 2024-07-30 |
| ED443 | Downwelling irradiance at 443 nanometers | The vertical component of light at 443nm wavelength travelling downwards. | 2024-07-30 |
| ED490 | Downwelling irradiance at 490 nanometers | The vertical component of light at 490nm wavelength travelling downwards. | 2024-07-30 |
| ED532 | Downwelling irradiance at 532 nanometers | The vertical component of light at 532nm wavelength travelling downwards. | 2024-08-22 |
| ED555 | Downwelling irradiance at 555 nanometers | The vertical component of light at 555nm wavelength travelling downwards. | 2024-07-30 |
| ED655 | Downwelling irradiance at 655 nanometers | The vertical component of light at 655nm wavelength travelling downwards. | 2024-07-31 |
| ED | Downwelling irradiance at x nanometers | The vertical component of light at the specified wavelength travelling downwards. | 2024-07-30 |
| DPAR | Downwelling photosynthetic available radiation | Downwelling vector irradiance as energy of electromagnetic radiation (PAR wavelengths) in the water body by cosine-collector radiometer. | 2018-06-01 |
| WCUR_X | Eastward current velocity in the water body | The depth-averaged current in the x-axis using dead reckoning between two surfacings. | 2025-04-11 |
| WATER_VELOC_FINAL_U | Eastward current velocity in the water body by dead reckoning and surface drift correction | The depth-averaged current in the x-axis using dead reckoning between two surfacings. Corrected for surface drift while the glider receives its first GPS fix at the surface. | 2025-04-28 |
| CNDC | Electrical conductivity | Electrical conductivity of the water body by CTD | 2018-04-23 |
| ENLEVEL | Energy level of acoustic signal by altimeter | Intensity of the echo return from an altimeter, ranging from 0 to 1. A value of 1 represents full saturation of the receiver. An energy level of 0.707 (square root of 2) is the theoretical perfect level as it represents the energy of a pure sine wave with an amplitude utilising the maximum dynamic range of the receiver. | 2023-06-02 |
| CYCLEENG | Engineering data cycle number | Engineering data cycle number. | 2018-06-01 |
| FREQDOXY | Frequency reported by oxygen sensor | The raw output from a dissolved oxygen sensor such as an SBE43 with output as a frequency related to DO concentration. | 2018-06-01 |
| LAT_GPS | GPS fixed latitude | Latitude north by unspecified GPS system. | 2024-09-09 |
| LON_GPS | GPS fixed longitude | Longitude east by unspecified GPS system. | 2024-09-09 |
| GLCOMPH | Glider command phase | Glider command phase. | 2018-06-01 |
| ALTITUDE | Height above bed in the water body | The vertical distance of a platform above the bed surface of a water body. | 2025-04-11 |
| TEMP_CNDC | Internal temperature of the conductivity cell | Internal temperature (degC) of the conductivity cell. | 2022-09-09 |
| LAT | Latitude north | Latitude north. | 2024-09-09 |
| LON | Longitude east | Longitude east. | 2024-09-09 |
| WCUR_Y | Northward current velocity in the water body | The depth-averaged current in the y-axis using dead reckoning between two surfacings. | 2025-04-11 |
| WATER_VELOC_FINAL_V | Northward current velocity in the water body by dead reckoning and surface drift correction | The depth-averaged current in the y-axis using dead reckoning between two surfacings. Corrected for surface drift while the glider receives its first GPS fix at the surface. | 2025-04-28 |
| NBSAMP | Number of samples in bin | Number of values included in the determination of a statistic such as an average. | 2018-06-01 |
| LCNTDOXY | Number of times oxygen sensor flashing to measure oxygen | Number of times oxygen sensor flashing to measure oxygen. | 2018-06-01 |
| OIL_VOL | Oil volume in the measurement platform | The volume of oil in the external reservoir of the platform. A positive change in OIL_VOL represents moving oil from the internal reservoir (within the pressure casing) to the external reservoir, increasing the total volume of the platform. | 2025-04-11 |
| HEADINGTN | Orientation (horizontal relative to True North) of measurement platform {heading} | The rotation of a platform relative to its upward/Z axis relative to True North. Often referred to as yaw or bearing. | 2025-04-11 |
| HEADING | Orientation (horizontal relative to magnetic north) of measurement platform {heading} | The rotation of a platform relative to its upward/Z axis relative to magnetic north. Often referred to as yaw or bearing. | 2025-04-11 |
| PITCH | Orientation (pitch) of measurement platform by inclinometer | The up/down rotation of a platform relative to it Y axis as measured by an inclinometer. | 2025-04-11 |
| ROLL | Orientation (roll angle) of measurement platform by inclinometer | The tilting rotation of a platform relative to its longitudinal/X axis as measured by an inclinometer. | 2025-04-11 |
| MLPLDOXY | Oxygen concentration reported by the oxygen sensor | Concentration of dissolved oxygen per unit volume of the water column. Oxygen may be expressed in terms of mass, volume or quantity of substance. | 2018-06-01 |
| OXYSAT | Oxygen saturation by Optode | Saturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase] by in-situ oxygen optode and computation from concentration. | 2018-08-24 |
| PPOXDOXY | Partial pressure of oxygen | The pressure that the oxygen component of an atmosphere sample would have if it alone occupied the same volume at the same temperature as the sample. | 2018-06-01 |
| PPDOXY | Partial pressure of oxygen in the water body | The partial pressure of oxygen in air in equilibrium with a water sample. | 2022-03-28 |
| BBP412 | Particle backscattering at 412 nanometers | Particle backscattering at 412 nanometers. | 2022-03-28 |
| BBP470 | Particle backscattering at 470 nanometers | Particle backscattering at 470 nanometers. | 2018-06-01 |
| BBP532 | Particle backscattering at 532 nanometers | Particle backscattering at 532 nanometers. | 2018-06-01 |
| BBP650 | Particle backscattering at 650 nanometers | Particle backscattering at 650 nanometers. | 2021-06-24 |
| BBP700 | Particle backscattering at 700 nanometers | Particle backscattering at 700 nanometers. | 2018-06-01 |
| BBP715 | Particle backscattering at 715 nanometers | Particle backscattering at 715 nanometers. | 2022-03-28 |
| BBP880 | Particle backscattering at 880 nanometers | Particle backscattering at 880 nanometers. | 2022-03-28 |
| BBP | Particle backscattering at x nanometers | Particle backscattering at a specified optical wavelength. | 2018-06-01 |
| PHDEDOXY | Phase delay reported by oxygen sensor | Phase delay reported by oxygen sensor. | 2018-06-01 |
| FLUOPHYC | Phycoerythrin signal from fluorescence sensor | Phycoerythrin signal from a fluorescence sensor. | 2019-03-21 |
| POTDENS0 | Potential density of water body at surface | Potential density of the water body by computation from salinity and theta using UNESCO algorithm with 0 decibar reference pressure | 2020-07-20 |
| PSAL | Practical salinity | Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm | 2018-05-31 |
| EDLAM380 | Raw downwelling irradiance at 380 nanometers | The raw output expressed in counts from an upward-facing cosine collector radiometer for optical wavelength 380nm. | 2018-06-01 |
| EDLAM412 | Raw downwelling irradiance at 412 nanometers | The raw output expressed in counts from an upward-facing cosine collector radiometer for optical wavelength 412nm. | 2018-06-01 |
| EDLAM443 | Raw downwelling irradiance at 443 nanometers | The raw output expressed in counts from an upward-facing cosine collector radiometer for optical wavelength 443nm. | 2018-06-01 |
| EDLAM490 | Raw downwelling irradiance at 490 nanometers | The raw output expressed in counts from an upward-facing cosine collector radiometer for optical wavelength 490nm. | 2018-06-01 |
| EDLAM555 | Raw downwelling irradiance at 555 nanometers | The raw output expressed in counts from an upward-facing cosine collector radiometer for optical wavelength 555nm. | 2018-06-01 |
| EDLAM | Raw downwelling irradiance at x nanometers | The raw output expressed in counts from an upward-facing cosine collector radiometer for one unspecified wavelength from the measured spectrum. | 2025-07-07 |
| RAWDPAR | Raw downwelling photosynthetic available radiation | The raw output expressed in counts from an upward-facing cosine collector radiometer measuring the integrated light over PAR wavelengths. | 2018-06-01 |
| FLUOCDOM | Raw fluorescence from coloured dissolved organic matter sensor | The amount of violet to low ultra-violet radiation generated in the water column in response to high ultra-violet radiation transmission expressed relative to an unspecified baseline using fluorometer designed to detect CDOM, crude oil or UV-fluorescent dyes. | 2018-06-01 |
| RTHERTUR_MN | Raw signal (mean) from turbulence profiler thermistor | The average number of counts in the water body across multiple measurements by a turbulence profiler thermistor. | 2023-08-07 |
| RTHERTUR_MN2 | Raw signal (mean) from turbulence profiler thermistor (second sensor) | The average number of counts in the water body across multiple measurements by a second turbulence profiler thermistor. | 2023-08-07 |
| RSHEAR_SD | Raw signal (standard deviation) from turbulence profiler shear sensor | The square root of the average of the squares of deviations about the mean of counts in the water body by a turbulence profiler shear sensor. | 2023-08-07 |
| RSHEAR_SD2 | Raw signal (standard deviation) from turbulence profiler shear sensor (second sensor) | The square root of the average of the squares of deviations about the mean of counts in the water body by a second turbulence profiler shear sensor. | 2023-08-07 |
| RTHERTUR_SD | Raw signal (standard deviation) from turbulence profiler thermistor | The square root of the average of the squares of deviations about the mean of counts in the water body by a turbulence profiler thermistor. | 2023-08-07 |
| RTHERTUR_SD2 | Raw signal (standard deviation) from turbulence profiler thermistor (second sensor) | The square root of the average of the squares of deviations about the mean of counts in the water body by a second turbulence profiler thermistor. | 2023-08-07 |
| RBBP700 | Raw signal from backscattering sensor at 700 nanometers | Raw backscattering sensor signal (count) at 700 nm wavelength. Volume scattering scale factor has not been applied. | 2025-07-07 |
| FLUOCHLA | Raw signal from chlorophyll-a fluorometer | Raw fluorescence signal (count) from chlorophyll-a fluorometer. | 2024-09-09 |
| TEMPDOXY | Sea temperature from oxygen sensor ITS-90 scale | Temperature of oxygen determination by optode. | 2018-06-01 |
| TEMP | Sea temperature in-situ ITS-90 scale | Temperature of the water body by CTD or STD | 2018-05-31 |
| DENSITY | Sea water density | The mass of a unit volume of any body of fresh or salt water. | 2018-06-01 |
| THETA | Sea water potential temperature | Potential temperature of the water body by computation using UNESCO 1983 algorithm. | 2020-07-20 |
| PRES | Sea water pressure, equals 0 at sea-level | Pressure (spatial co-ordinate) exerted by the water body by profiling pressure sensor and corrected to read zero at sea level | 2018-05-31 |
| PRES_ENG | Sea water pressure, equals 0 at sea-level by non temperature compensated platform pressure sensor | Pressure (spatial co-ordinate) exerted by the water body by non temperature compensated platform pressure sensor and corrected to read zero at sea level. | 2025-04-11 |
| PITMPOS | Setting (counts) of glider pitch mass | The pitch A/D count position of a glider internal mass. | 2018-06-01 |
| ROLMPOS | Setting (counts) of glider roll mass | The roll A/D count position of a glider internal mass. | 2018-06-01 |
| VBD | Setting (counts) of glider variable buoyancy device | The variable buoyancy device (VBD) A/D count position of a glider. | 2018-06-01 |
| CROLMPOS | Setting (offset angle from neutral) of glider roll mass | The angle of a glider's internal roll mass from the position that would maintain neutral roll (Positive starboard wing down). | 2018-06-01 |
| CPITMPOS | Setting (offset distance from neutral) of glider pitchmass | The distance of a glider's internal pitch mass from the position that would maintain neutral pitch (Positive nose up). | 2018-06-01 |
| RELVBD | Setting (volume offset from neutrally buoyant) of glider variable buoyancy device | The difference between the volume of the internal variable buoyancy device (VBD) on a glider and the volume of the VBD that would maintain neutral buoyancy. If values are positive then the glider rises in the water. | 2018-06-01 |
| SIGMA_T | Sigma-T | Computed by UNESCO SVAN function using in-situ temperature. | 2018-06-01 |
| SIGTHETA | Sigma-theta | Sigma-theta of the water body and computation from salinity and potential temperature using UNESCO algorithm. | 2020-07-20 |
| SOUNDVEL | Sound velocity in the water body | The rate at which sound travels through the water column. | 2018-06-01 |
| TCPUCHLA | Thermistor signal from backscattering meter and/or fluorometer | The raw analogue-to-digital converter output from a temperature sensor mounted on a CPU that is a component part of a backscattering meter and/or fluorometer. | 2024-09-09 |
| TCPURADP | Thermistor signal from radiometer | The raw analogue-to-digital converter output from a temperature sensor mounted on a CPU that is a component part of a radiometer. | 2024-09-10 |
| TVLTDOXY | Thermistor voltage reported by oxygen sensor | Voltage of instrument output by in-situ thermistor | 2018-04-23 |
| TIMEDF | Time elapsed since since start of day | Time elapsed since since start of day. | 2018-06-01 |
| TIMEYO | Time elapsed since since start of glider yo | Time elapsed since since start of glider yo. | 2018-06-01 |
| BETA470 | Total angle specific volume from backscattering sensor at 470 nanometers | Total angle specific volume from backscattering sensor at 470 nanometers. | 2018-06-01 |
| BETA532 | Total angle specific volume from backscattering sensor at 532 nanometers | Total angle specific volume from backscattering sensor at 532 nanometers. | 2018-06-01 |
| BETA650 | Total angle specific volume from backscattering sensor at 650 nanometers | Total angle specific volume from backscattering sensor at 650 nanometers. | 2019-08-12 |
| BETA700 | Total angle specific volume from backscattering sensor at 700 nanometers | Total angle specific volume from backscattering sensor at 700 nanometers. | 2018-06-01 |
| BETA880 | Total angle specific volume from backscattering sensor at 880 nanometers | Total angle specific volume from backscattering sensor at 880 nanometers. | 2019-08-12 |
| BETABBP | Total angle specific volume from backscattering sensor at x nanometers | Total angle specific volume from backscattering sensor at unspecified wavelength. | 2025-07-07 |
| TURB | Turbidity of water in the water body | Estimate of suspended sediment concentration based on the proportion of a light transmission in the water column that is reflected back to a co-located receiver. | 2018-06-26 |
| NCNTTUR1 | Turbidity signal from side scattering sensor | Turbidity signal from side scattering sensor. | 2018-06-26 |
| TPHDOXY | Uncalibrated (temperature compensated) phase shift reported by oxygen sensor | Uncalibrated (temperature compensated) phase shift reported by oxygen sensor. | 2021-06-25 |
| BPHDOXY | Uncalibrated blue excitation light phase shift reported by oxygen sensor | Uncalibrated blue excitation light phase shift reported by oxygen sensor. | 2021-06-25 |
| C1PHDOXY | Uncalibrated phase shift reported by oxygen sensor DEPRECATED | Deprecated on 25-Jun-2021 because the parameter concept was identical to an existing one. Uncalibrated phase shift reported by oxygen sensor. | 2021-06-28 |
| C2PHDOXY | Uncalibrated phase shift reported by oxygen sensor DEPRECATED | Deprecated on 25-Jun-2021 because the parameter concept was identical to an existing one. Uncalibrated phase shift reported by oxygen sensor. | 2021-06-28 |
| RPHDOXY | Uncalibrated red excitation light phase shift reported by oxygen sensor | Uncalibrated red excitation light phase shift reported by oxygen sensor. | 2021-06-25 |
| MOLDOXY | Uncompensated (pressure and salinity) oxygen concentration reported by the oxygen sensor | Water body dissolved oxygen concentration expressed at zero rather than in-situ salinity. This is NOT an environment state variable. | 2018-06-01 |
| VLTDOXY | Voltage reported by oxygen sensor | The raw output from a dissolved oxygen sensor such as an SBE43 with output as a voltage related to DO concentration. | 2018-06-01 |
| TIME | epoch time (glider) | Time elapsed since 1970-01-01T00:00:00Z. | 2018-06-01 |
