Before revision: A rosette sampler A rosette sampler is a device used for water sampling in deep water (such as the Great Lakes or oceans) in order to investigate about its quality.
After revision: Side and top views with (grey) Niskin bottles and (blue) CTD-loggerA rosette sampler A rosette sampler is a device used for water sampling in deep water (such as the Great Lakes or oceans) in order to investigate about its quality.