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    • Abstract:
      This article presents information related to oceanographic equipments. The oceans consist of nearly 1.4 billion km of salt water that accounts for nearly 97% of the free water on earth. The great volumes of water in the oceans influence the earth's climate by storing, absorbing, transporting and releasing water, heat and trace gases. In order to achieve these scientific objectives, and to make more comprehensive observations, oceanographers must use both proven methods and new technologies. These include measurements based on electronic, acoustic and optic sensing methods; measurements made from volunteer observing ships; images from satellites and observations from buoys. Sensing instruments and instrument systems attempt to convert some parameter of interest into a quantity that can be easily interpreted by the user.