Parameter: SAMPLE_DEPTH

Dataset: 
BioGeoChem
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: 
SAMPLE_DEPTH
Supplied Units: 
m
Conversion Necessary: 
no
No Data Value: 
nd
Description: 

Depth sample was taken.
BioGeoChem depth data -- Upon collection, we trigger the Niskin at the "depth" reported by the SeaBird (not pressure),
which takes into effect the ~2% change for the conversion in fresh water of pressure in decibars to depth in meters.
Thus these values truly are depth, not pressure.

Detailed Acquisition and Processing Metadata for All Parameters

Dataset parameter types [rank]
Primary depth variable