*
*
*
*
*
100

used to monitor ocean currents and the elevation of the ocean’s surface 

satellites

100

uses sound to map the ocean floor and underwater structures

SONAR

100

breathing apparatus which a single person uses to dive to depths tolerable to a human

SCUBA

100

uses at least three satellites to triangulate a receiver’s position and facilitate navigation

GPS

100

flying vehicle that is used to monitor the behavior of marine organisms and oil spills

aerial drone

200

an underwater vehicle that is operated by a human inside of it

HOV

200

used to dive to deep ocean depths beyond what the human body can tolerate

submersible

200

used to collect long cylinders of sediment from the ocean floor

corer

200

used to measure ocean salinity, temperature, and pressure

CTD

200

used to monitor the sounds in the ocean, such as whale song

hydrophone

300

moored floating devices used to measure things like waves, currents, ice movement, and weather using instruments situated under the waterline

buoys

300

underwater vehicle that is operated by a human on the surface

ROV

300

used to measure the water temperature as it falls through the water column

expendable bathythermograph

300

free-floating device used to measure things like waves, currents, ice movement, and weather using instruments situated under the waterline

drifter

300

used to collect marine specimens out of the water column using nets towed behind a research vessel 

trawl

400

used to monitor the speed of the current in rivers and oceans

ADCP

400

system that collects and analyzes data from other sources in order to create various types of maps

GIS

400

used to take 2-dimensional pictures underwater and put them together to create a 3-dimensional image

motion photogrammetry

400

used to collect rocks and mineral deposits off of the surface of the ocean floor

dredger

400

underwater vehicle that is operated by a computer program

AUV

M
e
n
u