Gliders are winged, low-power autonomous underwater vehicles that generate forward thrust by changing their buoyancy and glide angle to repeatedly dive and surface through the water. They can carry a variety of sensors, and are often used to carry out missions up to six months long. Gliders are used to take vertical profiles of data, giving scientists a clearer understanding of how temperature, salinity, and turbidity of specific areas of the oceans change over time in order to gain a better understanding of the role the ocean plays in global climate.
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