Lalande, Catherine; Nöthig, Eva-Maria; Fortier, Louis (2019): Export fluxes (diatom abundances, particulate organic carbon (POC), diatom carbon) from sediment traps deployed in the Eurasian Arctic Ocean. PANGAEA, https://doi.org/10.1594/PANGAEA.901800, Supplement to: Lalande, C et al. (2019): Algal Export in the Arctic Ocean in Times of Global Warming. Geophysical Research Letters, https://doi.org/10.1029/2019GL083167
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Satellite‐derived data suggest an increase in annual primary production following the loss of summer sea ice in the Arctic Ocean. The scarcity of field data to corroborate this enhanced algal production incited a collaborative project combining six annual cycles of sequential sediment trap measurements obtained over a 17‐year period in the Eurasian Arctic Ocean. Here we present microalgal fluxes measured at ~200 m to reflect the bulk of algal carbon production. Ice algae contributed to a large proportion of the microalgal carbon export before complete ice melt and possible detection of their production by satellites. In the northern Laptev Sea, annual microalgal carbon fluxes were lower during the 2007 minimum ice extent than in 2006. In 2012, early snowmelt led to early microalgal carbon flux in the Nansen Basin. Hence, a change in the timing of snowmelt and ice algae release may affect productivity and export over the Arctic basins.
Fahl, Kirsten; Nöthig, Eva-Maria (2007): Lithogenic and biogenic particle fluxes on the Lomonosov Ridge (central Arctic Ocean) and their relevance for sediment accumulation: Vertical vs. lateral transport. Deep Sea Research Part I: Oceanographic Research Papers, 54(8), 1256-1272, https://doi.org/10.1016/j.dsr.2007.04.014
Fahl, Kirsten; Nöthig, Eva-Maria (2007): Lithogenic and biogenic particle fluxes on the Lomonosov Ridge of trap LOMO-2. PANGAEA, https://doi.org/10.1594/PANGAEA.586835
Lalande, Catherine; Bélanger, Simon; Fortier, Louis (2009): Impact of a decreasing sea ice cover on the vertical export of particulate organic carbon in the northern Laptev Sea, Siberian Arctic Ocean. Geophysical Research Letters, 36(21), https://doi.org/10.1029/2009GL040570
Median Latitude: 81.099692 * Median Longitude: 136.124743 * South-bound Latitude: 79.756780 * West-bound Longitude: 109.020470 * North-bound Latitude: 83.270500 * East-bound Longitude: 159.333430
Date/Time Start: 1995-09-15T00:00:00 * Date/Time End: 2012-07-31T00:00:00
Minimum DEPTH, water: 150 m * Maximum DEPTH, water: 285 m
Gakkel_A1-1 (PS78/255-1) * Latitude: 83.270500 * Longitude: 124.767500 * Date/Time Start: 2011-09-15T00:00:00 * Date/Time End: 2012-08-15T00:00:00 * Elevation: -4240.0 m * Method/Device: Mooring (MOOR)
Gakkel_N1-1 (PS78/262-3) * Latitude: 82.645580 * Longitude: 109.020470 * Date/Time Start: 2011-09-18T00:00:00 * Date/Time End: 2012-08-15T00:00:00 * Elevation: -3600.0 m * Method/Device: Mooring (MOOR)
LOMO-2 (PS2756-1) * Latitude: 81.068050 * Longitude: 138.900000 * Date/Time Start: 1995-09-15T00:00:00 * Date/Time End: 1996-08-16T00:00:00 * Elevation: -1710.0 m * Location: Lomonosov Ridge, Arctic Ocean * Method/Device: Mooring (MOOR)
1976 data points