SurveyAcronym: Indicating project name. Allows merging with all other data files belonging to the same survey.
CruiseNumber: Indicating survey number/year/vessel. Allows merging with all other data files belonging to the same survey.
PairHaulNumber: The two trawls were towed as a pair side by side to form a pair of a test haul and a control haul (twin trawl). This indicates the haul number. Allows merging with all other data files belonging to the same survey.
Date_ddmmyyyy: The date in which gear was deployed (day/month/year).
Time_hhmmss: The time of day in which gear was deployed (hour/minute/seconds) in 24 hour clock.
TotalDepth_m: Seabed depth at point of sampling in meters (m).
SamplingDepth_m: LI-192 sensor sampling depth in meters (m).
Measure1_μmols^-1m^-2: First measurement of PAR (in μmol s-1 m-2) LI-192A underwater quantum sensor pointing downwards to collect ambient light data.
Measure2_μmols^-1m^-2: Second measurement of PAR (in μmol s-1 m-2) LI-192A underwater quantum sensor pointing downwards to collect ambient light data.
Measure3_μmols^-1m^-2: Third measurement of PAR (in μmol s-1 m-2) LI-192A underwater quantum sensor pointing downwards to collect ambient light data.
Average_μmols^-1m^-2: Average value of PAR from the three measurements (in μmol s-1 m-2).
SurfaceAmbientLightConditions: Description of surface ambient light conditions (sunny, overcast etc).