1994 Arctic Ocean Section
Contents
-- Contents --
U.S. Preface ...................................................................................................................
iv
Canadian Preface ...........................................................................................................
v
INTRODUCTION
Introduction ..................................................................................................................
1
Chronology ....................................................................................................................
3
The Ships .......................................................................................................................
8
SCIENCE REPORTS
Introduction ..................................................................................................................
12
Ocean Circulation and Geochemistry
A CTD/Hydrographic Section across the Arctic Ocean ..................................................
17
Total Carbonate and Total Alkalinity: Tracers of Shelf Waters in the
Arctic Ocean .............................................................................................................
20
Transient Tracers: Chlorofluorocarbons and Carbon Tetrachloride .................................
23
Distribution of Iron and Aluminum in the Surface Waters of the Arctic Ocean .............
26
Thorium Isotopes as Tracers of Scavenging and Particle Dynamics in the Arctic Ocean .
29
What Can Be Learned from Barium Distributions in the Arctic Ocean? ........................
32
Biology and the Carbon Cycle
Cycling of Organic Carbon in the Central Arctic Ocean ................................................
34
Mesozooplankton Community Structure in the Arctic Ocean in Summer......................
37
Roles of Heterotrophic Bacteria and Protists in the Arctic Ocean Carbon Cycle .............
40
Contribution of Planktonic and Ice Algae to Dimethylsulfide Production across the Arctic
Ocean in Summer .....................................................................................................
42
Transfer of Shelf-Derived Carbon to the Interior of the Arctic Ocean ............................
45
Dimethyl Sulfide in the High Arctic ..............................................................................
47
The Role of Biomass, Bioturbation and Remineralization in Determining the Fate of
Carbon in the Arctic Ocean .......................................................................................
51
Oxygen Consumption, Denitrification and Carbon Oxidation Rates in Near-Surface
Sediments of the Arctic Ocean ...................................................................................
53
Ecology of Marine Mammals
Upper Trophic Level Research: Polar Bears and Ringed Seals .........................................
55
Artificial Radionuclides in the Arctic Ocean ..................................................................
59
Persistent Organic Contaminants ...................................................................................
62
Air-Water Gas Exchange of Hexachlorocyclohexanes in the Arctic .................................
64
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