Instruments

The OOI manages and integrates data from more than 900 instruments deployed on its five arrays. Instruments are located on both fixed and mobile platforms including surface buoys, inductive mooring cables, seafloor junction boxes, profilers, gliders, Autonomous Underwater Vehicles. Overall, nearly 75 models of specialized instruments are used throughout the OOI, continuously collecting more than 200 unique data products.

Instruments on OOI arrays consist of Core Instruments, those that are integral to the OOI’s data collection infrastructure, and PI instruments, which have been added to the arrays to collect specific data to either test hypotheses or conduct specific experiments. Researchers who are interested in adding an instrument to OOI’s Regional Cabled Array or uncabled moorings can find more information here.

To learn more about a specific type of instrument, its location, and the data products associated with it, select from the list below.

OOI Instruments

Image	Instrument Name	Primary Discipline
	3-D Single Point Velocity Meter (VEL3D)	Physical
	Benthic Fluid Flow (FLOBN)	Chemical
	Bio-acoustic Sonar (ZPLS)	Biological
	Bottom Pressure and Tilt (BOTPT)	Geological
	Broadband Acoustic Receiver (Hydrophone) (HYDBB)	Physical
	Broadband Ocean Bottom Seismometer (OBSBB)	Geological
	Bulk Meteorology Instrument Package (METBK)	Physical
	Conductivity, Temperature, and Depth (CTD)	Physical
	Diffuse Vent Fluid 3-D Temperature Array (TMPSF)	Physical
	Digital Still Camera (CAMDS)	Biological
	Direct Covariance Flux (FDCHP)	Physical
	Dissolved Oxygen (DO2)	Chemical
	Fluorometer (FLUOR)	Biological
	HD Digital Video Camera (CAMHD)	Geological
	Horizontal Electric Field, Pressure and Inverted Echo Sounder (HPIES)	Physical
	Hydrothermal Vent Fluid In-situ Chemistry (THSPH)	Chemical
	Hydrothermal Vent Fluid Interactive Sampler (RASFL)	Chemical
	Hydrothermal Vent Fluid Temperature and Resistivity (TRHPH)	Geological
	Low Frequency Acoustic Receiver (Hydrophone) (HYDLF)	Physical
	Mass Spectrometer (MASSP)	Chemical
	Nitrate (NUTNR)	Chemical
	Osmosis-Based Water Sampler (OSMOI)	Chemical
	Particle Size Analysis (PRTSZ)	Physical
	Particulate DNA Sampler (PPSDN)	Biological
	pCO2 Air-Sea (PCO2A)	Chemical
	pCO2 Water (PCO2W)	Chemical
	Photosynthetically Active Radiation (PARAD)	Biological
	Plankton Imaging (Plankton Imaging)	Biological
	Seafloor Pressure (PRESF)	Physical
	Seawater pH (PHSEN)	Chemical
	Short-Period Ocean Bottom Seismometer (OBSSP)	Geological
	Single Point Velocity Meter (VELPT)	Physical
	Spectral Irradiance (SPKIR)	Physical
	Spectrophotometer (OPTAA)	Biological
	Surface Wave Spectra (WAVSS)	Physical
	Tidal Seafloor Pressure (PREST)	Physical
	Turbidity (TURBD)	Physical
	Water Velocity Profile (ADCP)	Physical

PI Added Instruments

Image	Instrument Name	Primary Discipline
	A-0-A Calibrated Pressure Instrument (A0ABPA301)	Marine Geophysics
	MARUM Camera System (CAMPIA101)	Marine Geophysics
	Cabled Array Vent Imaging Sonar (COVIS) (COVISA301)	Marine Geophysics
	MARUM CTD-DO Instrument (CTDPFA110)	Marine Geophysics
	RAPID: Distributed Acoustic Sensing on the OOI’s Regional Cabled Array (DAS)	Geophysics
	RAPID: Multiplexed Distributed Acoustic Sensing (DAS) at the Ocean Observatory Initiative (OOI) Regional Cabled Array (RCA) (DAS)	Geophysics
	Lab-on-a-Chip Nitrate and Silicate Sensors (GS01SUMO-RID27-01-NOCNIA000, GS01SUMO-RID27-02-NOCSIA000)	Biogeochemistry
	MARUM Southern Hydrate Ridge Overview Sonar (OVRSRA101)	Marine Geophysics
	MARUM Quantification Sonar Southern Hydrate Ridge (QNTSRA101)	Marine Geophysics
	Self-Calibrating Pressure Recorder (SCPRAAA301)	Marine Geophysics