Measurements of oceanic organosulfur compunds, halocarbons and ammonium made during the DI241 research cruise as part of DISCO project in the North sea during June-July 1999

The cruise began on 5th June 1999 and ended on 1st of July 1999 with a spatial coverage of +61N to +51N latitude and +4E to -2E longitude.

The data consists of: -131 measurements of concentrations of dimethylsulfoxide (DMSO) per unit volume of water column by enzyme digestion, purging, cryogenic trapping and gas chromatography -396 measurements of concentrations of dimethylsulfoniopropionate (DMSP) per unit volume of water column (dissolved plus reactive particulate < GF/F phase) by filtration and gas chromatography -335 measurements of concentrations of dimethylsulfoniopropionate (DMSP) per unit volume of water column (dissolved plus reactive particulate phase) by gas chromatography -446 measurements of concentrations of dimethylsulfide (DMS) per unit volume of water column (dissolved plus reactive particulate < GF/F phase) by filtration, purging, cryogenic trapping and gas chromatography -60 measurements of concentration of bromomethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -60 measurements of concentration of chloroiodomethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -54 measurements of concentration of dibromochloromethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -52 measurements of concentration of dibromomethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -6 measurements of concentration of dichlorobromomethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -60 measurements of concentration of dichloromethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -61 measurements of concentration of diiodomethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -59 measurements of concentration of tetrachloroethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -60 measurements of concentration of tribromomethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -59 measurements of concentration of trichloroethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -60 measurements of concentration of trichloroethene per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -60 measurements of concentration of trichloromethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography-mass spectrometry. -60 measurements of concentration of iodomethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography. -61 measurements of concentration of tetrachloromethane per unit volume of the water column (dissolved plus reactive particulate phase) by purging, cryogenic trapping and gas chromatography. -326 measurements of concentration of ammonium per unit volume of the water column (dissolved plus reactive particulate phase) by nanomolar ammonium system after Jones (1991) See below for further details.