Data products of different types and formats are delivered, as listed here:
Station position
- Station x,y positions based on GNSS and (offshore) underwater acoustic navigation. Offshore, this is usually provided by the ship and ROV operator.
- Precise depth based on GNSS, InSar or traditional land surveying (onshore) or water pressure (offshore)
- x,y,z-data are usually provided for all stations in an Excel spreadsheet.
Raw gravity
- Gravity as output by the sensors. For Scintrex CG-5 or CG-6 this is gravity, tilt and temperature at 10 Hz or 6 Hz sampling. For absolute gravity it may be an average number.
- Sensor tilt
- Sensor temperature
- Date and time
- Station name – to connect with position
- Metadata, dependent on type of measurement and survey
- Calibration constants, from most recent calibrations
Raw pressure
- Pressure proxy, for instance frequency output for Paroscientific Digiquartz sensors
- Sensor temperature
- Sensor tilt
- Date and time
- Station name – to connect with position
Raw reference pressure
- Pressure proxy, for instance frequency output for Paroscientific Digiquartz
- Sensor temperature
- Sensor tilt
- Date and time
- Station name – to connect with position
Oceanographic data
- From CTD probes, either launched from a ship crane or attached to the ROV:
- Water temperature T(x,y,z,t)
- Salinity s(x,y,z,t)
Weather data
- Wave height (estimated from a weather buoy, a nearby oil platform, the ship movements or a shore station)
- Air temperature
- Wind (average and maximum speed, direction)
- Rainfall (onshore)
- Sunshine
Survey progress
- Position of ship, ROV, car or instrument vs. survey time
- Duration of instrument set-up and de-rigging at a site
- Duration of measurements
Processed data
- Station values of gravity, best estimate and probability distribution
- Uncertainty of gravity values, with spatial dependencies
- Station values of depth, best estimate and probability distribution
- Uncertainty of depth values, with spatial dependencies