Raw meteorological dataset from the Southern Ocean collected on board the Antarctic Circumnavigation Expedition (ACE) during the austral summer of 2016/2017.

Data files: MAWS__SMSAWS__YYYYMMDD.txt

File header: 
TIME: date and time at which the measurement was recorded, not corrected, in the format YYYY-MM-DD hh:mm:ss [UTC]
LAT: latitude at which the measurement was recorded in the format dddmm.ffff [degrees and decimal minute]
LAT_NS: hemisphere of latitude measurement, N for Northern and S for Southern
LONG: longitude at which the measurement was recorded in the format ddd.ffff [decimal degrees]
LONG_EW: direction of the longitude with respect to the Meridian, E for easterly and W for westerly
WD2MA1: two-minute average wind direction measured by starboard sensor [degrees]
WD2MM1: two-minute minimum wind direction measured by starboard sensor [degrees]
WD2MX1: two-minute maximum wind direction measured by starboard sensor [degrees]
WS2MA1: two-minute average wind speed measured by starboard sensor [degrees]
WS2MM1: two-minute minimum wind speed measured by starboard sensor [degrees]
WS2MX1: two-minute maximum wind speed measured by starboard sensor [degrees]
WD10MA1: ten-minute average wind direction measured by starboard sensor [degrees]
WD10MM1: ten-minute minimum wind direction measured by starboard sensor [degrees]
WD10MX1: ten-minute maximum wind direction measured by starboard sensor [degrees]
WS10MA1: ten-minute average wind speed measured by starboard sensor [degrees]
WS10MM: ten-minute minimum wind speed measured by starboard sensor [degrees]
WS10MX1: ten-minute maximum wind speed measured by starboard sensor [degrees]
WD2MA2: two-minute average wind direction measured by port sensor [degrees]
WD2MM2: two-minute minimum wind direction measured by port sensor [degrees]
WD2MX2: two-minute maximum wind direction measured by port sensor [degrees]
WS2MA2: two-minute average wind speed measured by port sensor [degrees]
WS2MM2: two-minute minimum wind speed measured by port sensor [degrees]
WS2MX2: two-minute maximum wind speed measured by port sensor [degrees]
WD10MA2: ten-minute average wind direction measured by port sensor [degrees]
WD10MX2: ten-minute maximum wind direction measured by port sensor [degrees]
WD10MM2: ten-minute minimum wind direction measured by port sensor [degrees]
WS10MA2: ten-minute average wind direction measured by port sensor [degrees]
WS10MX2: ten-minute maximum wind direction measured by port sensor [degrees]
WS10MM2: ten-minute minimum wind direction measured by port sensor [degrees]
VIS: horizontal visibility [metres]
Wawa: weather code
CL1: height of first cloud level (if SC1==9: CL1 provides the vertical visibility) [metres]
CL2: height of second cloud level [metres]
CL3: height of third cloud level [metres]
SC1: sky cover at first cloud level (If SC1=9 CL1 provides the vertical visibility) [octants, 9]
SC2: sky cover at second cloud level [octants]
SC3: sky cover at third cloud level [octants]
RH1: relative humidity measured by the port sensor [%]
TA1: air temperature measured by the port sensor [degrees Celsius]
DP1: dew point provided by the port sensor [degrees Celsius]
RH2: relative humidity measured by the starboard sensor [%]
TA2: air temperature measured by the starboard sensor [degrees Celsius]
DP2: dew point provided by the starboard sensor [degrees Celsius]
PA1: atmospheric pressure measured by the port sensor [millibar]
PA2: atmospheric pressure measured by the starboard sensor [millibar]
SR1: solar radiation measured by the port sensor [Watts per square metre]
SR2: solar radiation (not working)
SR3: solar radiation measured by the starboard sensor [Watts per square metre]
UV1: ultraviolet radiation measured by the port sensor [Watts per square metre]
UV2: ultraviolet radiation measured by the starboard sensor [Watts per square metre]
Cond: conductivity of seawater (not working)
Salinity: salinity of seawater (not working)
TwTwTw: temperature, conductivity and salinity of seawater (not working)
TIMEDIFF: Vaisala internal time difference. Number of seconds which should be added to the TIME column to convert it to correct UTC
Year: year of measurement [UTC]
Month: month of measurement [UTC]
DAY: day of the month of measurement [UTC]
CLOUDTEXT: unknown
VISCODE: horizontal visibility to the nearest hundred metres, to a maximum of 9999 m, above which all measurements are recorded as 9999 [metres]

Null values are recorded as ///, // or /