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A scientist draws a water sample from a Niskin bottle mounted on a multiple water sample device. The long white cylinder is the Niskin bottle. The white plastic frame attached to the Niskin bottle can hold up to three reversing thermometers. It rotates around its centre when the Niskin bottle closes. (Photo © 2000 CSIRO Marine Research, reproduced by permission.) Figure 13.13 gives another view of Niskin bottles on a multiple water sample device. The figure below shows a Niskin bottle designed for use on a wire. The bottle is closed and on its side; the thermometer frame is at the bottom. The bottle is attached to the wire with the two wing nuts at the top. |
