File Format of Subsurface current data

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The file structure of subsurface current data is the same as the subsurface temperature data.

HEADER (Cruise Information)
Element Start Position Field Type Description of Field
FORMAT CODE 1 A4 Format Code of the file: 'A1.1'
CRUISE NO 6 I4 Cruise number identified with the year and the month.
PERIOD 11 2(2I2,1X) Date of beginning and end of the subsurface current observation.
AREA 21 A98 Observation area.
NO OF STN 119 I4 Number of stations.
SHIP CODE 124 A2 Ship Code (listed in Table)
REC_IND 126 A1 '@'

DATA
Element Start Position Field Type Description of Field
STATION NO 1 A3,I3 Station number given by the ship code suffixed with three digits consective numbers.
DATE/TIME 8 2(2I2,1X) Month, day and time of an observation in JST.
LATITUDE 18 I2,1X,I2,I1,A1 Degrees, minutes and tenths of minutes (if given) of latitude, N or S.
LONGITUDE 26 I3,1X,I2,I1,A1 Degrees, minutes and tenths of minutes (if given) of longitude, E or W.
W-DEPTH 35 I4 Water depth to the bottom in meters.
NO OF LAYER 40 I2 Number of observation layers.
DEPTH(1) 43 I4 Depth of the 1st(4th) layer in meters.
DIR/SPEED(1) 48 I3,1X,I2 True direction (in degrees) toward which current is flowing and speed given in tenths of knots of the subsurface current for the 1st (4th) layer determined with Acoustic Doppler Current Meter (ACM). When the speed is less than 0.05knots, direction is given as 0.
DEPTH(2) 55 I4 Same as above but for the 2nd (5th) layer.
DIR/SPEED(2) 60 I3,1X,I2idem
DEPTH(3) 67 I4 Same as above but for the 3rd (6th) layer.
DIR/SPEED(3) 72 I3,1X,I2idem
REF 79 A2 Method to determine the ship velocity, which is used to calculate the absolute current velocity. (LC: Loran-C, GP: GPS, BM: Bottom track by ACM.)
SURF-TEMP 82 F5.2 or F4.1,1X Surface temperature in ITS-90.
SURF-SAL. 88 F6.3 Surface salinity in PSS-78.
HYD-NO 95 I4 Corresponding station number of hydrographic data.
SSF-NO 99 A2,I3 Corresponding station number of subsurface temperature data.
INTERVAL 105 I4 Time of averaging interval in seconds.
SHIP-DIR 110 I3 Direction of the ship in degrees.
SHIP-SPD 114 I3 Speed of the ship in tenths of knots.
HEAD 118 I3 Heading of the ship from gyro in degrees.
PING NO 122 I4 Number of pings over the averaging period.
REC_IND 126 A1 '@' or '='