Spatial variations in snowpack chemistry, isotopic composition of NO3- and nitrogen deposition from the ice sheet margin to the coast of western Greenland

• Published in: Biogeosciences Vol. 15; no. 2; pp. 529 - 550
• Main Authors: Curtis, Chris J, Kaiser, Jan, Marca, Alina, Anderson, N John, Simpson, Gavin, Jones, Vivienne, Whiteford, Erika
• Format: Journal Article
• Language: English
• Published: Katlenburg-Lindau Copernicus GmbH 29.01.2018; Copernicus Publications
• Subjects: 20th century; Ammonium; Ammonium compounds; Anthropogenic factors; Aquatic ecosystems; Arctic lakes; Catchments; Cations; Chemical composition; Chemistry; Climate change; Coastal zone; Coastal zones; Coasts; Deposition; Ecological effects; Fluxes; Glaciation; Ice; Ice sheets; Inland waters; Isotope composition; Isotopes; Lake catchments; Lake deposits; Lake ice; Lake sediments; Lakes; Net losses; Nitrogen; Nitrogen deposition; Nitrogen isotopes; Photolysis; Pollutants; Precipitation; Regions; Salts; Sediment; Sediments; Snow; Snow accumulation; Snow-water equivalent; Snowfall; Snowpack; Spatial variations; Stable isotopes; Studies; Sublimation; Sulfates; Volatilization; Watersheds; Arctic region; Greenland

The relative roles of anthropogenic nitrogen (N) deposition and climate change in causing ecological change in remote Arctic ecosystems, especially lakes, have been the subject of debate over the last decade. Some palaeoecological studies have cited isotopic signals (δ(15N)) preserved in lake sedime...