Oceanography Equipment – Flashcards
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gravity core
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mist basic sampling device used to collect core samples from the sea floor
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secchi disk
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used to estimate the tracparency of sea water
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dip net
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useful for scooping up seaweed, jellyfish, and othe drifting organisms from docks and sides of vessels
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sediment sieves
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used to analyze swdiment grain size composition
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phytoplankton nets
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a cone shaped net of fine mesh material with a cillecting jar at the base
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neuston net
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large mesh surface water net enables us to tow for larger zoo plankton.
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niskin bottle, van darn bottle
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used to collect water samples from discrete depths, which are then analyzed chemically
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hydrophone
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a microphone for acoustic measurments in fluids
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shipek grab
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samples a wide variety of fresh water sediment and is deaigned to to take samples in soft ooze, clay, sand, gravel, and pebbles on flat or gently sloping bottoms
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dredge
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used to sample organisms living in the bottom of the ocean.
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current meter
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instrument for measuring the velocity, force, ect. of currents
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GPS
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a world wide radio navigator system that utilizes satellites to triangulate a specific location on earth.
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trawl net
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the mouth of the net is kept open through otter boards attached to the leading ends if the net, or by cutrent passing through net.
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hudrometer
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device used to measure then densities of liquids and solutions
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ROV
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unoccupied, highly maneuverable underwater robots operated by a person aboard a surface vessel
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refractometer
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instrument used to measure the salt concentration of sea water by using the refraction of light.
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salirometer
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a hydrometer that determines the concetration of salt soultion by measuring their density
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scuba
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self contained underwater breathing apparatus
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nansen bottle
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subsurface measurments of water samples are made with water sampling bottles. closed by tripping action
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H.M.S
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fisrt scientific ship
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bathysphere
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steel ball that william beebe and otis barton decended more that half a mile into the ocean
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sonar
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a rapid method of looking
