BATHY

Report of bathythermal observation

  
Section 1

  
JJVV (JJXX) YYMMJ GGgg/ QcLaLaLaLa LoLoLoLoLo
  (iuddff) (4snTTT)

  
Section 2

  
8888k1 IxIxIxXRXR
   z0z0T0T0T0 z1z1T1T1T1 .... znznTnTnTn
   999zz z1z1T1T1T1 .... znznTnTnTn
   (00000)

  
Section 3

  
(66666 (1ZdZdZdZd) (k5 DcDc VcVc))

  
Section 4

  
D.....D or 99999 A1bwnbnbnb

YY

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

MM

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

J

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

GGgg

Time of observation, in hours and minutes (UTC)
(In BATHY and TESAC, GGgg is the time of launching the bathythermograph.)

Qc

Quadrant of the globe.

Code figure Latitude Longitude
1 North East
3 South East
5 South West
7 North West

Note: The choice is left to the observer in the following cases:
When the ship is on the Greenwich meridian or the 180th meridian (LoLoLoLo = 0000 or 1800 respectively):
Qc = 1 or 7 (northern hemisphere) or
Qc = 3 or 5 (southern hemisphere);
When the ship is on the Equator (LaLaLa = 000):
Qc = 1 or 3 (eastern longitude) or
Qc = 5 or 7 (western longitude).

LaLaLaLa

Latitude, in thousandths of a degree

LoLoLoLoLo

Longitude, in thousandths of a degree


iu

Indicator for units of wind speed and type of instrumentation

Code
figure		 Units used Instruments certified or otherwise
0 Metres per second Land stations, and ships with certified instruments
1 Knots Land stations, and ships with certified instruments
2 Metres per second Ships with uncertified instruments
3 Knots Ships with uncertified instruments

dd

True dirction, in tens of degrees, from which wind is blowing

Code			
figure				
00	Calm		
01	5-14
02	15-24
03	25-34

etc.	etc.

36	355-4
99	Variable, or all directions or unknown or waves 
	confused, direction indetermininate


ff

Wind speed, in units indicated by iu

sn

Sign of the data


code
figure
0	Positive or zero
1	Negative



TTT

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



k1

Indicator for digitization

Code
figure
7	Values at selected depths 
	(data points fixed by the instrument or 
	selected by any other method)

8	Values at significant depths 
	(data points taken from traces at 
	significant depths)



IxIxIx

Instrument type for XBT, with fall rate equation coefficients. (When the first group of the report is JJXX, this group is not reported.)





Notes:
(1)	The depth (m) is calculated from coefficients 
	a and b and the time t (s), as follows:   
	z = at + 10-3 bt2.
(2)	All unassigned numbers are reserved.



XRXR

Recorder type (When the first group of the report is JJXX, this group is not reported.)


z0z0
z1z1
....
znzn

Significant depths, in meters, starting with the surface


T0T0T0
T1T1T1
......
TnTnTn

Temperature, in tenths of a degree Celsius, at specified depths starting with sea surface

For negative temperatures, 500 shall be added to the absolute value of the temperature in tenths of a degree Celius



zz

Depth, in hundreds of meters, starting with the surface


00000

The group 00000 shall be included only when the temperature at the lowest depth of the sounding, which is reported in the last temperature group, is actually the bottom layer temperature.


ZdZdZdZd

Total water depth, in meters.


k5

Indicator for the method of current measurement 
Code
figure
2	GEK (Geomagnetic ElectroKinetograph)
3	Ship's set and drift determined by fixes 
	3-6 hours apart
4	Ship's set and drift determined by fixes 
	more than 6 hours but less than 12 hours apart
5       Drift of buoy
6       ADCP (Acoustic Doppler Current Profiler)



DcDc

Surface current direction, in tens of degrees.

VcVc

Surface current speed, in tenths of a knot.

D.....D

Ship's call sign consisting of three or more alphanumeric characters


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.)


bw

Sub-area belonging to the area indicated by A1



nbnbnb

Type and serial number of buoy

Note: When the first group is JJXX, the group IxIxIxXRXR is not reported.