Halocarbon and pigment profiles in the waters of the Amundsen and Ross Seas, Antarctica ...

• Main Authors: Mattsson, Erik, Karlsson, Anders, Smith, Walker O Jr, Abrahamsson, Katarina
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Event label; Date/Time of event; Latitude of event; Longitude of event; DEPTH, water; Iodomethane; 1-Iodoethane; Bromochloromethane; 1,1,1-Trichloroethane; Dibromomethane; 1-Iodopropane; Bromodichloromethane; Chloroiodomethane; 2-Iodobutane; Dibromochloromethane; 1-Iodobutane; 1,2-Dibromoethane; Bromoiodomethane; Tribromomethane; Diiodomethane; Chlorophyll a; Chlorophyll a, fractionated; Chlorophyll c3; 19-Butanoyloxyfucoxanthin; Fucoxanthin; 19-Hexanoyloxyfucoxanthin; Ice coverage; Temperature, water; Salinity; Density, sigma, in situ; Density, sigma-theta 0; CTD/Rosette; Gas chromatography, Ekdal & Abrahamsson, 1997; Estimated; CTD, Sea-Bird SBE 911plus; Calculated; OSO07/08; Oden; Amundsen Sea; Antarctic; Austral; Ross Sea; Antarc*; Antarctica; Sea ice; ice covered areas
• Online Access: https://dx.doi.org/10.1594/pangaea.779087; https://doi.pangaea.de/10.1594/PANGAEA.779087

Little is known regarding the distribution of volatile halogenated organic compounds (halocarbons) in Antarctic waters, and their relation to biophysical variables. During the austral summer (December to January) in 2007-08 halocarbon and pigment concentrations were measured in the Amundsen (100-130ºW) and Ross Sea (158ºW- 160ºE). In addition, halocarbons were determined in air, snow and sea ice. The distribution of halocarbons was influenced to a large extent by sea ice, and to a much lesser extent by pelagic biota. Concentrations of naturally produced halocarbons were elevated in the surface mixed layer in ice covered areas compared to open waters in polynyas and in the bottom waters of the Ross Sea. Higher concentrations of halocarbons were also found in sea ice brine compared to the surface waters. Incubations of snow revealed an additional source of halocarbons. The distribution of halocarbons also varied considerably between the Amundsen and Ross Seas, mainly due to the different oceanographic ... : Supplement to: Mattsson, Erik; Karlsson, Anders; Smith, Walker O Jr; Abrahamsson, Katarina (2012): The relationship between biophysical parameters and halocarbon distribution in the waters of the Amundsen Sea and Ross Seas, Antarctica. Marine Chemistry, 140-141, 1-9 ...