Under-ice export flux measurements by short-term drifting sediment traps at 27 stations in the Arctic Ocean during summer 1995, 1997, and 2012 ...

• Main Authors: Lalande, Catherine, Nöthig, Eva-Maria, Somavilla Cabrillo, Raquel, Bauerfeind, Eduard, Shevchenko, Vladimir P, Okolodkov, Yuri
• Format: Dataset
• Language: English
• Published: PANGAEA 2014
• Subjects: Event label; Gear; Date/Time of event; Duration; Latitude of event; Longitude of event; DEPTH, water; Chlorophyll a, flux; Carbon, organic, particulate, flux; Seston, flux; Silicate, particulate, flux per day; Fecal pellet carbon, flux; Carbon/Nitrogen ratio; Diatoms, pennales, cell, flux; Diatoms, centrales, cell, flux; Flagellate cell, flux; Melosira arctica, cell, flux; Melosira arctica, spores, flux; Melosira arctica, valves, flux; Emiliania huxleyi, flux; Trap, shorttime; Ice station; ARK-XI/1; ARK-XIII/2; ARK-XXVII/3; Polarstern; Long-term Investigation at AWI-Hausgarten off Svalbard Hausgarten; Arctic Ocean; Fram Strait; laptev; Laptev Sea; Phytoplankton; Svalbard; Zooplankton
• Online Access: https://dx.doi.org/10.1594/pangaea.828349; https://doi.pangaea.de/10.1594/PANGAEA.828349

A critical question regarding the organic carbon cycle in the Arctic Ocean is whether the decline in ice extent and thickness and the associated increase in solar irradiance in the upper ocean will result in increased primary production and particulate organic carbon (POC) export. To assess spatial and temporal variability in POC export, under-ice export fluxes were measured with short-term sediment traps in the northern Laptev Sea in July-August-September 1995, north of the Fram Strait in July 1997, and in the Central Arctic in August-September 2012. Sediment traps were deployed at 2-5 m and 20-25 m under ice for periods ranging from 8.5 to 71 h. In addition to POC fluxes, total particulate matter, chlorophyll a, biogenic particulate silica, phytoplankton, and zooplankton fecal pellet fluxes were measured to evaluate the amount and composition of the material exported in the upper Arctic Ocean. Whereas elevated export fluxes observed on and near the Laptev Sea shelf were likely the combined result of high ... : Supplement to: Lalande, Catherine; Nöthig, Eva-Maria; Somavilla Cabrillo, Raquel; Bauerfeind, Eduard; Shevchenko, Vladimir P; Okolodkov, Yuri (2014): Variability in under-ice export fluxes of biogenic matter in the Arctic Ocean. Global Biogeochemical Cycles, 28(5), 571-583 ...