International Pacific Research Center
               Asia-Pacific Data-Research Center

       Pacific Ocean Science and Technology Bldg., Room 401
       1680 East-West Road
       University of Hawaii
       Honolulu, Hawaii 96822



1.  SUMMARY

Velocity data assessed from trajectories of Argo floats at parking level
and at the sea surface.


2.  FORMAT

The yomaha07.dat file structure is:

Columns 1-8 contain three-dimensional coordinates, time, components
and errors of the deep float velocity.

 1 - Longitude where deep velocity is estimated
 2 - Latitude where deep velocity is estimated
 3 - Parking pressure (dbars) for this cycle
 4 - Julian time (days) relative to 2000-01-01 00:00 UTC
 5 - Eastward component (estimate) of the deep velocity (cm/s)
 6 - Northward component (estimate) of the deep velocity (cm/s)
 7 - Error estimate of Eastward component of deep velocity (cm/s)
 8 - Error estimate of Northward component of deep velocity (cm/s)

Columns 9-15 contain horizontal coordinates, time, components
and errors of the float velocity at the sea surface.

 9 - Longitude where sea surface velocity is estimated
10 - Latitude where sea surface velocity is estimated
11 - Julian time (days) relative to 2000-01-01 00:00 UTC
12 - Eastward component (estimate) of velocity (cm/s) at the sea surface
13 - Northward component (estimate) of velocity (cm/s) at the sea surface
14 - Error estimate of Eastward component of surface velocity (cm/s)
15 - Error estimate of Northward component of surface velocity (cm/s)

Auxiliary float and cycle data are in columns 16-27

16 - Longitude of the last fix at the sea surface during the previuos cycle
17 - Latitude of the last fix at the sea surface during the previuos cycle
18 - Julian time (days) relative to 2000-01-01 00:00 UTC of the last fix
     at the sea surface during the previuos cycle
19 - Longitude of the first fix at the sea surface during the current cycle
20 - Latitude of the first fix at the sea surface during the current cycle
21 - Julian time (days) relative to 2000-01-01 00:00 UTC of the first fix
     at the sea surface during the current cycle
22 - Longitude of the last fix at the sea surface during the current cycle
23 - Latitude of the last fix at the sea surface during the current cycle
24 - Julian time (days) relative to 2000-01-01 00:00 UTC of the last fix
     at the sea surface during the current cycle
25 - Number of surface fixes during the current cycle 
26 - Float ID. Correspondence between our float ID's and WMO float ID's
     is discribed in the file WMO2DAC2type.txt
27 - Cycle number
28 - Time inversion/duplication flag=1 if at least one duplication or
     inversion of time is found in the sequence containing last fix from
     the previous cycle and all fixes from the current cycle.


File WMO2DAC2type.txt catalogs the float information included into
YoMaHa'07 dataset:

 1 - Serial YoMaHa'07 number of the float
 2 - WMO float ID
 3 - DAC where float data are stored (described in the file DACs.txt)
 4 - Float type (described in the file float_types.txt)