A CTD is so named as it measures Conductivity, Temperature and Depth. These parameters can then be used to calculate salinity and density. There are a variety of CTD’s within the OOI program with unique capabilities. Some CTD’s are configured with inductive communication (CTDMO), a pump to control flow through the instrument (CTDBP), or the ability to be mounted to a shallow water mooring (CTDMOS), profiler (CTDPF), glider (CTDGV), or AUV (CTDAV).

Data Products

This instrument measures the following data products. Select a data product's name to learn more.

Data Product Code DPS
Conductivity CONDWAT DPS
Density DENSITY DPS
Practical Salinity PRACSAL DPS
Pressure (Depth) PRESWAT DPS
Temperature TEMPWAT DPS

The algorithm code used to generate data products for this instrument is also available in the ion-functions GitHub repository.

Instrument Models & Deployed Locations

The OOI includes the following instrument makes and models for this instrument type. Follow the links below to find out where in the OOI this instrument has been deployed. You'll also find quick links for each instrument to Data Explorer, where you can plot and access data.

Class-Series Make Model
CTDAVN Sea-Bird SBE Glider Payload CTD (GP-CTD)
CTDBPC Sea-Bird SBE 16plusV2
CTDBPD Sea-Bird SBE 16plusV2
CTDBPE Sea-Bird SBE 16plusV2
CTDBPF Sea-Bird SBE 16plusV2
CTDBPN Sea-Bird SBE 16plusV2
CTDBPO Sea-Bird SBE 16plusV2
CTDBPP Sea-Bird SBE 16plus-IM V2
CTDGVM Sea-Bird SBE Glider Payload CTD (GP-CTD)
CTDMOG Sea-Bird SBE 37IM
CTDMOH Sea-Bird SBE 37IM
CTDMOQ Sea-Bird SBE 37IM
CTDMOR Sea-Bird SBE 37IM
CTDPFA Sea-Bird SBE 16plusV2
CTDPFB Sea-Bird SBE 16plusV2
CTDPFJ Sea-Bird FastCAT 49 CTD
CTDPFK Sea-Bird SBE 52MP
CTDPFL Sea-Bird SBE 52MP
CTDMOS Sea-Bird SBE 37IM