R/V Armstrong CSV data file  (Time stamps are GMT)
DATE_GMT, TIME_GMT, Dec_LAT, Dec_LON, SPD, HDT, COG, SOG, WXTP_Ta, WXTS_Ta, WXTP_Pa, WXTS_Pa, WXTP_Ri, WXTS_Ri, WXTP_Rc, WXTS_Rc, WXTP_Dm, WXTS_Dm, WXTP_Sm, WXTS_Sm, WXTP_Ua, WXTS_Ua, WXTP_TS, WXTS_TS, WXTP_TD, WXTS_TD, BAROM_P, BAROM_S, RAD_SW, RAD_LW, PAR, SBE45S, SBE48T, FLR, FLOW, SSVdslog, Depth12, Depth35, EM122 

DATE_GMT - GMT date YYYY/MM/DD
TIME_GMT - GMT time HH:MM:SS.SSS
Dec_LAT - Decimal Latitude
Dec_LON - Decimal Longitude
SPD - Ship Speed
HDT - Heading - Gyro
COG - Course Over Ground - from GPS
SOG - Speed Over Ground - from GPS
WXTP_Ta - Port Vaisala air temp  - degrees C
WXTS_Ta - Starboard Vaisala air temp - degrees C
WXTP_Pa - Port Vaisala air pressure - hPa
WXTS_Pa - Starboard Vaisala air pressure - hPa
WXTP_Ri - Port Vaisala rain intensity - mm/h
WXTS_Ri - Starboard Vaisala rain intensity - mm/h
WXTP_Rc - Port Vaisala rain accumulation - mm
WXTS_Rc - Starboard Vaisala rain accumulation - mm
WXTP_Dm - Port Vaisala relative wind direction average - degrees
WXTS_Dm - Starboard Vaisala relative wind direction average - degrees
WXTP_Sm - Port Vaisala relative wind speed average - m/s
WXTS_Sm - Starboard Vaisala relative wind speed average - m/s
WXTP_Ua - Port Vaisala relative humidity - percent
WXTS_Ua - Starboard Vaisala relative humidity - percent
WXTP_TS - Port Vaisala True Wind Speed - m/s
WXTS_TS - Starboard Vaisala True Wind Speed - m/s
WXTP_TD - Port Vaisala True Wind Direction - degrees
WXTS_TD - Starboard Vaisala True Wind Direction - degrees
BAROM_P - Corrected Port Barometric pressure - hPa
BAROM_S - Corrected Starboard Barometric pressure - hPa
RAD_SW - Shortwave Radiation - watts/square meter
RAD_LW - Longwave Radiation flux - watts/square meter
PAR - Photosynthetically active radiation - uE/m2/sec
SBE45S - sea surface salinity (5m) - psu
SBE48T - sea surface temperature (5m)- degrees C
FLR - fluorometer - millivolts
FLOW - flow - ml/s
SSVdslog - sea surface sound velocity - m/s
Depth12  - 12kHz water depth - m
Depth35  - 3.5kHz water depth - m
EM122 - 12kHz multibeam centre depth - m