| Summary: | Raw data used in the publication of "Biogenic silica production and diatom dynamics in the Svalbard region during spring 2016". ARCEx. The Research Centre for Arctic Petroleum Exploration, ARCEx, is a research collaboration between academia and industry with support from the Research Council and Norwegian authorities. Through a common effort, the project contributes to the understanding of the geology and resource potential of the high north, the development of new geophysical exploration techniques suitable for the Arctic and new models for environmental risk connected to operations in the north. Education and training is an integrated part of ARCEx. ARCEx is hosted by UiT The Arctic University of Norway in Tromsø. Cruise goal and duration. The overarching goal of the ARCEx cruise was to study the pelagic and benthic ecosystem during Arctic spring bloom scenarios in fjords at western Svalbard (van Mijenfjorden and Hornsund), a coastal scenario (Storfjorden) and the western Barents Sea (in the Arctic influenced Erik Eriksen Strait, the Polar Front and at an Atlantic influenced location). This study was conducted onboard the FF Helmer Hanssen between 17 and 29 May 2016 with Dr. Ingrid Wiedmann serving as Chief Scientist. Data collection. All samples reported in this data set were collected either using a water-column CTD Rosette sampler with Niskin bottles or short-duration sediment traps. The CTD package was a Seabird Electronics (SBE) 911plus with a photosynthetically active radiation sensor (Biospherical/Licor, SN 1060). Discreet samples were collected at targeted depths using 5-L Niskin samplers secured to the CTD Rosette system. Once on deck, water was sampled directly from the Niskin samplers to be processed for the measurements and methods described. The vertical flux of particulates was assessed by filtering water from the short-term (<1 day) deployed sediment traps (KC Denmark). Sediment trap cylinders (~72mm internal diameter, ~450mm length, ~1:8 L volume) were deployed at three to seven depths ...
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