For any questions about WOD product, please e-mail OCLhelp desk.

• Secchi disk and water color observations: WOD_secchi_forel.csv.gz

• The file columns for secchi disk and water color data are as follows:
1. Accession number (corresponds to original data in NODC archive)
2. WOD cruise designator
3. WOD unique cast number
4. Latitude
5. Longitude
6. Year
7. Month
8. Day
9. Time
10. Secchi disk depth (meters)
11. Water color (extended Forel/Ule scale)

• The extended forel-ule scale is detailed in the WOD code table: s_14_water_color.txt