Rosettsensorer

Rosettsensorer, or rosette samplers, are specialized pieces of oceanographic equipment used to collect water samples at various depths. They are typically comprised of a circular frame, often made of metal, to which a series of bottles are attached in a circular or rosette-like pattern. Each bottle is equipped with a mechanism that can be triggered remotely to close, thereby sealing a water sample within.

The rosette sampler is lowered into the ocean attached to a cable. As it descends, researchers can identify specific depths at which they want to collect samples. At these predetermined depths, an electronic signal is sent down the cable, triggering the closure of one or more bottles. This process can be repeated at multiple depths during a single deployment, allowing for the collection of a vertical profile of water characteristics.

The water collected by rosettsensorer is invaluable for a wide range of scientific studies. It is analyzed for parameters such as salinity, temperature, dissolved oxygen, nutrient concentrations, plankton abundance, and the presence of pollutants. This data helps scientists understand ocean circulation patterns, marine ecosystems, climate change impacts, and the overall health of the ocean. The ability to collect samples at precise depths makes rosettsensorer essential tools for oceanographic research.