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

Mixed Layer Depth (MLD) is the depth, on which density increases from
10m to the value equivalent to the temperature drop of 0.2°C.

Isothermal Layer Depth (ILD) is the depth, on which temperature departs
from its 10-m value by 0.2°C.

Top of the Thermocline Depth (TTD) is the depth, on which temperature
decreases from its 10-m value by 0.2°C. TTD may differ from ILD if there is
temperature inversion below 10m level.

Temperature Inversion Depth (TID) is the depth of temperature maximum,
if the latter exceeds the 10-m value by at least 0.2°C.


2.  FORMAT

The Argo_Mix.dat file structure is:

 1 - Longitude
 2 - Latitude
 3 - Julian time (days) relative to 2000-01-01 00:00 UTC
 4 - Mixed Layer Depth (MLD), meters
 5 - Isothermal Layer Depth (ILD), meters
 6 - Top of the Thermocline Depth (TTD), meters
 7 - Temperature Inversion Depth (TID), meters
 8 - Mixed Layer Temperature (MLT), degC
 9 - Mixed Layer Salinity (MLS), PSU
10 - Ocean Code
11 - Region Code
12 - Argo Float ID
13 - Argo Float Cycle Number