Additional Marine Technology Resources:

The Census of Marine Life has a good summary of technology they use for their reseach.

NOAA Ocean Explorer observation tools site has pages on ADCPs, ocean acoustics, GIS, satellites, sonars, CTDs, drifting buoys and more.

National Science Foundation Ocean Sciences program information

National Academy of Science ocean acoustics tutorial

NOAA ocean acoustics tutorial

Underwater acoustics and sonar primer

Dr. Bob Stewart of Texas A&M has several excellent web resources: