O stations include CTD, oxygen, nutrients, carbonate and alkalinity, CFCs
(including CC14, helium-tritium, 18O, 14C and trace metals.
C stations include hydrocarbons, HCHs, other organics (e.g., toxophenes),
radionuclides and trace metals, using both large-volume bottle sampling and
submerged and surface pumps. Contaminant samples were also collected from
snow samples, net hauls and box cores.
I stations variously include vertical temperature and salinity profiles in the
ice, beam tests, crystallography, and electrical and physical properties of the
snow cover. There were also continuous ship-based radiation measurements at
37 GHz, vertically polarized.
Depths are uncorrected.
In addition, 72 CTD stations to 1500 m were occupied using a portable
system carried by helicopter and deployed from the ice. Two 48-hr contami-
nant moorings were also deployed and recovered by helicopter. Finally, the marine
mammals program made detailed studies of seven polar bears, again working