Auxiliary material for
Contribution of sea ice in the Southern Ocean to the cycling of volatile halogenated organic
compounds
Anna Granfors, Anders Karlsson, Erik Mattsson, Walker O. Smith, Jr
and Katarina Abrahamsson
(Department of Chemistry and Molecular Biology, University of Gothenburg SE-412 96,
Göteborg, Sweden and Virginia Institute of Marine Science, College of William & Mary,
Gloucester Pt., Virginia 23062, USA)
Geophysical Research Letters, 2013
Introduction
This dataset contains information on volatile halogenated organic compounds (VHOCs) and
chlorophyll a from the pack ice collected during the 2008 Southern Ocean expedition
(OSO08/09) from the R.V.I.B. Oden from December 12, 2008 to January 7, 2009. A total of
17 stations were occupied in the Amundsen and Ross Seas where sea ice distributions of
VHOCs and ice-associated biota were assessed. The stations locations are shown in figure
“fs01.pdf”. The bulk ice halocarbon and chlorophyll a concentrations were assessed as a
function of depth in the ice. To illustrate variations with depth and between stations, the depth
profiles were divided into three types: surface, internal and bottom, according to the vertical
position of maximum halocarbon concentration (upper third, middle third, or bottom third of
core). Table “ts01.pdf” shows percentages of all ice core samples in which the specified
halocarbon compounds and chlorophyll a have a maximum concentration in the surface
(upper third), internal region (middle third) or in the bottom (bottom third) of the ice core.
1. Figure fs01. Map of Study area showing the locations and station numbers of the 17 icestations where VHOCs were sampled. Dashed line shows sea ice extent for December 2008,
data provided by National Snow and Ice Data Center, University of Colorado Boulder
(DATASETS/NOAA/G02135/shapefiles/Dec/shp_extent/ at sidads.colorado.edu ).
2. ts01.pdf Percentages of all samples in which the specified compounds have a
maximum concentration in the surface (upper third), internal region (middle
third) or in the bottom (bottom third) of the ice core.
2.1 Column “Compound”, Name of compound measured in sea ice
2.2 Column “Surface ice maximum (% of all samples)”, percentage of all samples that have a
maximum concentration of the specified compound in the upper third of the ice core.
2.3 Column “Internal ice maximum (% of all samples)”, percentage of all samples that have a
maximum concentration of the specified compound in the middle third of the ice core.
2.4 Column “Bottom ice maximum (% of all samples)”, percentage of all samples that have a
maximum concentration of the specified compound in the bottom third of the ice core.