Data files structure:
1. Longitude
2. Latitude
3. Mixed Layer Depth (MLD), meters
4. anomaly relative to annual mean Mixed Layer Depth, meters
5. anomaly relative to annual mean Mixed Layer Depth, meters
6. Isothermal Layer Depth (ILD), meters
7. anomaly relative to annual mean Isothermal Layer Depth, meters
8. anomaly relative to annual mean Isothermal Layer Depth, meters
9. Top of the Thermocline Depth (TTD), meters
10. anomaly relative to annual mean Top of the Thermocline Depth, meters
11. anomaly relative to annual mean Top of the Thermocline Depth, meters
12. Barrier Layer (>0) or Compensated Layer (<0) Thickness (BLT=TTD-MLD), meters
13. anomaly relative to annual mean Barrier Layer (>0) or Compensated Layer (<0) Thickness, meters
14. anomaly relative to annual mean Barrier Layer (>0) or Compensated Layer (<0) Thickness, meters
15. Temperature Inversion Depth (TID), meters
16. anomaly relative to annual mean Temperature Inversion Depth, meters
17. anomaly relative to annual mean Temperature Inversion Depth, meters
18. Mixed Layer Temperature (MLT), degC
19. anomaly relative to annual mean Mixed Layer Temperature, degC
20. anomaly relative to annual mean Mixed Layer Temperature, degC
21. Mixed Layer Salinity (MLS), PSU
22. anomaly relative to annual mean Mixed Layer Salinity, PSU
23. anomaly relative to annual mean Mixed Layer Salinity, PSU