Digital Library Search
![Hydrographic survey technician monitoring sonar cgs02604.jpg Hydrographic survey technician monitoring sonar](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs02604.jpg?itok=2mQd8bcn)
Description
Hydrographic survey technician monitoring sonar. (Image credit: Crew and Officers of the NOAA Ship FAIRWEATHER)
Credit
Crew and Officers of the NOAA Ship FAIRWEATHER
Collection
Historic Coast & Geodetic Survey
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Hydrographic survey technician monitoring sonar. (Image credit: Crew and Officers of the NOAA Ship FAIRWEATHER)