The exact column name as it appeared in the raw file before any cleaning.A common or understandable name for the variable.The physical units associated with the variable (e.g., m, PSU, °C).The description supplied by the original data provider explaining what the variable represents.The medium from which the measurement was taken (e.g., water, air, sediment). Extracted from the header or assigned manually.Whether the value is a direct measurement or a calculated value.Any notes about how the variable was processed or derived.Extracted from the header or assigned manually. idMeasurement ID–Unique ID value assigned to each row in the datasheetSeawater date_timeDate and Time–Date and Time in the format dd-mm-yyyy hh:mm:ssSeawater yearYear–Year of measurementSeawater monthMonth–Month of measurementSeawater dayDay–Date of measurementSeawater hourHour–Hour of measurementSeawater minuteMinute–Minute of measurementSeawateractual latitudeLatitudedegrees northLatitude of measurementSeawateractual longitudeLongitudedegrees eastLongitude of measurementSeawateractual temperatureWater Temperaturedegrees CSurface water temperature determined from TSGSeawateractual temp_adjWater Temperature (Adjusted)degrees CSurface water temperature adjusted to reflect CTD conditionsSeawateractual salinitySalinitypsuSurface water salinity determined from TSGSeawateractual sal_refReference Salinityg/kgSalinity measured in g/kg for ocean calculationsSeawateractual co2Surface water pCO2µatmSurface water pCO2 measurementSeawateractual pco2temppCO2 (temperature)µatmThermally influenced surface water pCO2Seawateractual pco2netpCO2 (net)µatm“Net” influenced surface water pCO2Seawateractual dpco2Air - Sea CO2 differenceµatmDifference between seawater and atmospheric CO2Seawatercalculated