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- W2955698734 abstract "Greenland fjords receive considerable amounts of glacial meltwater discharge from the Greenland Ice Sheet due to present climate warming. This impacts the hydrography via freshening of the fjord waters and biological processes due to altered nutrient input and the addition of silts. We present the first comprehensive analysis of the summer carbon cycle in the world's largest fjord system situated in southeastern Greenland. During a cruise onboard RV Maria S. Merian in summer 2016, we visited Scoresby Sund and its northernmost branch, Nordvestfjord. In addition to direct measurements of hydrography, biogeochemical parameters and sediment trap fluxes, we derived net community production (NCP) and full water column particulate organic carbon (POC) fluxes, and estimated carbon remineralization from vertical flux attenuation. While the narrow Nordvestfjord is influenced by subglacial and surface meltwater discharge, these meltwater effects on the outer fjord part of Scoresby Sund are weakened due to its enormous width. We found that subglacial and surface meltwater discharge to Nordvestfjord significantly limited NCP to 32 – 36 mmol C m-2 d-1 compared to the outer fjord part of Scoresby Sund (58 – 82 mmol C m-2 d-1) by inhibiting the resupply of nutrients to the surface and by shadowing of silts contained in the meltwater. The POC flux close to the glacier fronts was elevated due to silt-ballasting of settling particles that increases the sinking velocity and thereby reduces the time for remineralization processes within the water column. By contrast, the outer fjord part of Scoresby Sund showed stronger attenuation of particles due to horizontal advection and, hence, more intense remineralization within the water column. Our results imply that glacially influenced parts of Greenland's fjords can be considered as hotspots of carbon export to depth. In a warming climate, this export is likely to be enhanced during glacial melting. Additionally, entrainment of increasingly warmer Atlantic Water might support a higher productivity fjord systems. It therefore seems that future ice-free fjord systems with high input of glacial meltwater may become increasingly important for Arctic carbon sequestration." @default.
- W2955698734 created "2019-07-12" @default.
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- W2955698734 date "2019-08-13" @default.
- W2955698734 modified "2023-09-28" @default.
- W2955698734 title "Influence of Glacial Meltwater on Summer Biogeochemical Cycles in Scoresby Sund, East Greenland" @default.
- W2955698734 cites W1481306094 @default.
- W2955698734 cites W1483261315 @default.
- W2955698734 cites W1509193614 @default.
- W2955698734 cites W1522701979 @default.
- W2955698734 cites W1543619409 @default.
- W2955698734 cites W1740671805 @default.
- W2955698734 cites W1833483487 @default.
- W2955698734 cites W1957873071 @default.
- W2955698734 cites W1965431589 @default.
- W2955698734 cites W1966808981 @default.
- W2955698734 cites W1968765147 @default.
- W2955698734 cites W1970372944 @default.
- W2955698734 cites W1975203671 @default.
- W2955698734 cites W1986754204 @default.
- W2955698734 cites W1987021289 @default.
- W2955698734 cites W1989445615 @default.
- W2955698734 cites W1992100415 @default.
- W2955698734 cites W1993294793 @default.
- W2955698734 cites W1994808750 @default.
- W2955698734 cites W1995804059 @default.
- W2955698734 cites W1998920319 @default.
- W2955698734 cites W2002599424 @default.
- W2955698734 cites W2011051057 @default.
- W2955698734 cites W2013278565 @default.
- W2955698734 cites W2015110100 @default.
- W2955698734 cites W2015742302 @default.
- W2955698734 cites W2020712598 @default.
- W2955698734 cites W2021337985 @default.
- W2955698734 cites W2022616068 @default.
- W2955698734 cites W2028760393 @default.
- W2955698734 cites W2033156385 @default.
- W2955698734 cites W2033338965 @default.
- W2955698734 cites W2034659250 @default.
- W2955698734 cites W2045913129 @default.
- W2955698734 cites W2047842264 @default.
- W2955698734 cites W2059022664 @default.
- W2955698734 cites W2060359089 @default.
- W2955698734 cites W2060650383 @default.
- W2955698734 cites W2061716142 @default.
- W2955698734 cites W2062804933 @default.
- W2955698734 cites W2067039884 @default.
- W2955698734 cites W2072181349 @default.
- W2955698734 cites W2076206295 @default.
- W2955698734 cites W2076947257 @default.
- W2955698734 cites W2084546185 @default.
- W2955698734 cites W2093157321 @default.
- W2955698734 cites W2094922595 @default.
- W2955698734 cites W2096819901 @default.
- W2955698734 cites W2098706036 @default.
- W2955698734 cites W2099924544 @default.
- W2955698734 cites W2103309372 @default.
- W2955698734 cites W2105071430 @default.
- W2955698734 cites W2108808592 @default.
- W2955698734 cites W2110136835 @default.
- W2955698734 cites W2112848484 @default.
- W2955698734 cites W2117296630 @default.
- W2955698734 cites W2118249459 @default.
- W2955698734 cites W2129599621 @default.
- W2955698734 cites W2137947148 @default.
- W2955698734 cites W2138365661 @default.
- W2955698734 cites W2162366278 @default.
- W2955698734 cites W2165513598 @default.
- W2955698734 cites W2167582092 @default.
- W2955698734 cites W2173047258 @default.
- W2955698734 cites W2175811376 @default.
- W2955698734 cites W2181042367 @default.
- W2955698734 cites W2187384374 @default.
- W2955698734 cites W2211348225 @default.
- W2955698734 cites W2234158074 @default.
- W2955698734 cites W2254804242 @default.
- W2955698734 cites W2258321270 @default.
- W2955698734 cites W2280526415 @default.
- W2955698734 cites W2283817415 @default.
- W2955698734 cites W2286649747 @default.
- W2955698734 cites W2300588461 @default.
- W2955698734 cites W2321423980 @default.
- W2955698734 cites W2325104193 @default.
- W2955698734 cites W2326885807 @default.
- W2955698734 cites W2344693780 @default.
- W2955698734 cites W2356639972 @default.
- W2955698734 cites W2406511072 @default.
- W2955698734 cites W247692222 @default.