Science Learning Hub logo
TopicsConceptsCitizen scienceTeacher PLDGlossary
Sign in
Image

CTD instrument package

Dr Phil Sutton and a Conductivity Temperature Depth instrument

Dr Phil Sutton of NIWA works on a CTD (Conductivity Temperature Depth) instrument package used to measure the ocean. CTD uses the same instruments as Argo scientific floats, but is lowered from ships. Salinity and temperature are measured at specific locations and depths, and are checked against Argo data.

Glossary

Rights: NIWA
Published: 30 June 2010Size: 215.34 KB
Referencing Hub media

Explore related content

Appears inRelated resources
Ocean temperature

Article

Ocean temperature

The temperature of the ocean determines what form the water takes. Most of the ocean is liquid water, but if ...

Read more
Measuring instruments

Article

Measuring instruments

Collecting data is a crucial part of scientific inquiry. To study waves and the ocean sea level, scientists usually gather ...

Read more
Week 1: The research vessel <i>Tangaroa</i>

Article

Week 1: The research vessel Tangaroa

RV Tangaroa is NIWA’s main research vessel – 70 metres long, nearly 14 metres wide and with a 7 metre ...

Read more
Temperature, salinity and water density

Activity

Temperature, salinity and water density

Cold water is denser than warm water, so it tends to sink. Seawater is denser than freshwater. Salinity, temperature and ...

Read more

See our newsletters here.

NewsEventsAboutContact usPrivacyCopyrightHelp

The Science Learning Hub Pokapū Akoranga Pūtaiao is funded through the Ministry of Business, Innovation and Employment's Science in Society Initiative.

Science Learning Hub Pokapū Akoranga Pūtaiao © 2007-2025 The University of Waikato Te Whare Wānanga o Waikato