Oceanography (CTD)

A CTD (also known as Sonde) is a multi-parameter water monitoring system that is designed to simultaneously measure a range of biological and physical properties in both salt and fresh water. This oceanography instrument is used to measure the conductivity, temperature and pressure of the seawater.

The instrument is a cluster of sensors that commonly scans at a rate of 24Hz. The titanium housing allows sampling to depths in excess of 10,000 metres. The CTD cast collects high resolution data that upon retrieval is downloaded to a computer and specialised software is used to graph and interpret data. The information that it collects can be used by scientists to investigate how physical parameters are related, and thus can make inferences about the occurrence of certain biological processes. This information can contribute to bettering our understanding of certain factors like species distribution and presence in certain areas of the ocean.

  • AUV

    The expedition will use Hugin 6000 Autonomous Underwater Vehicles (AUVs), which operate at speeds of up to six knots and in water depths of up to 6,000 metres.

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  • ROV

    The deployment of a Remotely Operated Vehicle (ROV) by the expedition enables researchers to collect samples of flora and fauna from the seabed for further study in the laboratory.

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  • Aerial Drones

    The expedition will also use unmanned aerial vehicles (UAV), commonly known as aerial drones. UAVs are manufactured to provide an eye in the sky without a human pilot onboard.

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  • Sediment Corers

    Sediment cores are used to sample the organisms that live on or just below the surface of the ocean floor (the benthos), while also displaying the structure of the sediment by boring a large tube into the benthos and then raising the column.

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  • Oceanography (CTD)

    A CTD (also known as Sonde) is a multi-parameter water monitoring system that is designed to simultaneously measure a range of biological and physical properties in both salt and fresh water.

    View More