Instrument: Secchi Disc

Dataset: 
Neuse River Estuary WQ
Instrument: 
Secchi Disc
Instrument Short Name: Secchi Disc
Community Standard Description
(http://vocab.nerc.ac.uk/collection/L22/current/TOOL0430/)
Instrument Description:

Typically, a 16 inch diameter white/black quadrant disc used to measure water optical clarity

PI supplied instrument name: secchi disk
Dataset-specific description

The secchi disk was deployed off of the sunlit side of the research vessel.  The depth (in meters) at which the secchi disk was no longer visible by the naked eye was recorded as the secchi depth.