Diver attaching an instrument housing to the seafloor
By Coastal and Marine Hazards and Resources Program
2010 (approx.)
Detailed Description
Don Hickey attaches a PVC (polyvinyl chloride) housing to the seafloor. The instrument in the housing collects conductivity (related to salinity) and temperature data at a site in Dry Tortugas National Park where researchers are studying coral calcification.
Sources/Usage
Public Domain.