FM 64 X TESAC

Temperature, salinity and current report from a sea station

Code Form:

Notes:

1. TESAC is the name of the code for reporting observations of temperature, salinity and current from a sea station.
2. A TESAC report or a bulletin of TESAC reports is identified by M_iM_iM_jM_j = KKYY.
3. The code form is divided into five sections:

Regulations:

Symbolic Letters:

A₁

WMO regional association area in which buoy, drilling rig or oil- or gas-production platform has been deployed (1 = Region I; 2 = Region II, etc.) (code table 0161).

b_w

Subarea belonging to the area indicated by A₁ (code table 0161).

c₀c₀c₀c₁c₁c₁...c_nc_nc_n

Speed of the current, in centimeters per second, at selected and/or significant depths starting with the sea surface.

D....D

Ships's call sign consisting of 3 or more alphanumeric characters.

dd

True direction, in tens of degrees, from which wind is blowing (or will blow) (code table 0877; stations within 1 degree of the North pole use code table 0878)

d₀d₀d₁d₁..._nd_n

True direction, in tens of degrees, towards which sea current at selected and/or significant depths starting with the sea surface is moving (code table 0877).

ff

Wind speed in units indicated by i_u

GGgg

Time of observation, in hours and minutes (UTC). This is the actual time of launching the bathythermograph.

i_u

Indicator of units of wind speed and type of instrumentation (code table 1853)

I_XI_XI_X

Instrument type used for the observation (code table 1770).

J

Units digit of the year (UTC), i.e. J = 4 for 1994.

k₁

Indicator for digitization (code table 2262).

k₂

Method of salinity/depth measurement (code table 2263).

k₃

Duration and time of current measurement (vector or Doppler current profiling method) (code table 2264).

k₄

Period of current measurement (drift method) (code table 2265).

k₆

Method of removing the velocity and motion of the ship or buoy from current measurement (code table 2267).

L_aL_aL_aL_aL_a

Latitude in decimal degrees. When the latitude is in tenths of a degree, it shall be encoded as L_aL_aL_a//. When the latitude is in hundredths of a degree, it shall be encoded as L_aL_aL_aL_a/

L_oL_oL_oL_oL_oL_o

Longitude in decimal degrees. When the longitude is in tenths of a degree, it shall be encoded as L_oL_oL_oL_o//. When the longitude is in hundredths of a degree, it shall be encoded as L_oL_oL_oL_oL_o/

MM

Month of the year (UTC), i.e. 01 = January; 02 = February, etc.

M_iM_i

Identification letters of the report (code table 2582)

M_jM_j

Identification letters of the part of the report or the version of the code form (code table 2582)

n_bn_bn_b

Type and serial number of buoy.

Q_c

Quadrant of the globe (code table 3333)

S₀S₀S₀S₀S₁S₁S₁S₁...S_nS_nS_nS_n

Salinity, in hundredths of a PSU (Practical Salinity Units), at either significant or selected depths starting with the sea surface.

s_n

Sign of the data and relative humidity indicator (code table 3845)

TTT

Air temperature, in tenths of a degree Celsius, its sign being given by s_n

T₀T₀T₀T₀T₁T₁T₁T₁...T_nT_nT_nT_n

Temperatures, in hundredths of a degree Celsius, at either significant or selected depths starting with the sea surface. For negative temperatures, 5000 shall be added to the absolute value of the temperature in hundredths of a degree Celsius.

X_RX_R

Recorder type (code table 4770).

YY

Day of the month (UTC), with 01 indicating the first day, 02 the second day, etc., on which the actual time of the observation falls.

Z_dZ_dZ_dZ_d

Total water depth, in meters.

z₀z₀z₀z₀z₁z₁z₁z₁...z_nz_nz_nz_n

Selected and/or significant depths, in meters, starting with the surface

///…

Missing data. The number of solidi depends on the number of symbolic letters for which no data can be reported.