Section 1: Oceanographic instruments

You may take as long as you would like to answer the following questions. You can use the following websites to help you:

• https://www.unols.org/document/research-vessel-safety-standards-rvss-tenth-edition-july-2015 
• http://www.whoi.edu/science/instruments
• http://www.oceancareers.com
• http://www.marinetech.org/files/marine/files/Workforce/Marine%20Technicians.pdf

Please read through the above websites and research the questions and your answers thoroughly. You must answer at least 80% of the following quiz questions correctly to participate in the internship. Contact Nandita Sarkar, MATE’s internship logistics coordinator at nsarkar@mpc.edu if you have any questions. Once you have completed the quiz, please contact Nandita to let her know.

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* 1. Name:

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* 2. E-mail:

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* 3. Define the following acronyms for commonly used oceanographic data collection instruments:

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* 4. Match the following instruments with their common uses:

  CTD ADCP Echosounder MOCNESS Gravity corer Marine Magnetometer Moored profiler Piston corer
a. This instrument is used to create detailed bathymetric maps of the seafloor. It can be used in water as shallow as 10 meters and as deep as 5000 meters.
b. This instrument is towed behind the research vessel opening and closing to catch and measure the abundance of zooplankton at different depths allowing researchers to map the distributions of zooplankton in the water column.
c. This instrument is the primary tool for determining essential physical properties of sea water. It gives scientists a precise and comprehensive insitu measurement of water temperature, salinity along a depth profile.
d. This apparatus is a long, pipe which has a heavy lead weight on top so it can plunge into the seafloor to extract samples of sediment. This instrument gets its name from the small device inside the tube which allows the tube to capture very long samples of sediment, up to 30 meters in length.
e. This is a scientific instrument used to measure magnetic field strength. Under the sea, marine geophysicists, ocean engineers and nautical archeologists use it to detect variations in the total magnetic field of the underlying seafloor.
f. This instrument allows researchers to sample the surface sediment layers at the bottom of lakes or oceans.
g. Scientists use this instrument to measure water movement and ocean currents. The instrument uses backscatter from plankton and other particles floating in the water column to measure ocean currents. These instruments can be deployed on a mooring or mounted in the hull of a ship.
h. This instrument makes repeated measurements of ocean currents and water properties while it travels up and down through the water column. It carriers along with it basic instruments such as at CTD and an ACM (acousting current meter) to measure currents, but other instruments can be added, including bio-optical and chemical sensors.

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