Parameter: Actual_Depth

Dataset: 
Diatom silica productivity rates
Parameter: 
depth
Master parameters information
Short Name:
 depth
Short Description:
 depth
Official Name:
 depth
No Data Value:
 nd
Description:
 

Observation/sample depth below the sea surface. Units often reported as: meters, feet.

When used in a JGOFS/GLOBEC dataset the depth is a best estimate; usually but not always calculated from pressure; calculated either from CTD pressure using Fofonoff and Millard (1982; UNESCO Tech Paper #44) algorithm adjusted for 1980 equation of state for seawater (EOS80) or simply equivalent to nominal depth as recorded during sampling if CTD pressure was unavailable.

Dataset-parameters information
Supplied Name: 
Actual_Depth
Supplied Units: 
meters
Conversion Necessary: 
no
Conversion Utility: 
No Data Value: 
nd
Description: 
Depth of sample. Mid-point of niskin bottle at depth of collection (Depth sensor minus 0.5 m)