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Sarmiento&Gruber 2006 Chapter 2: Tracer conservation and ocean transport, part 1. The most common elements in the earth system. seawater. The major constituents have almost constant proportion (covary with salinity). changeable ions indicated by arrows.
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Sarmiento&Gruber 2006 Chapter 2: Tracer conservation and ocean transport, part 1
The most common elements in the earth system seawater The major constituents have almost constant proportion (covary with salinity). changeable ions indicated by arrows From: Treatise in Geochemistry, Vol. 6, Elsevier, 2004
Libes, S.M., 1992, An introduction to marine biogeochemistry, John Wiley
Elements, Tracers: • Biolimiting • Biointermediate • Biounlimited
GEOSECS Station 214 32º N 176º W North Pacific Broecker, W.S., and T.-H. Peng, 1982, Tracers in the sea, ELDIGIO Press
GEOSECS Station 214 32º N 176º W North Pacific Broecker, W.S., and T.-H. Peng, 1982, Tracers in the sea, ELDIGIO Press
Broecker, W.S., and T.-H. Peng, 1982, Tracers in the sea, ELDIGIO Press
Vertical profiles of elements in the North Pacific, compiled by Nozaki, 1996 Source: Sarmiento & Gruber 2006
Good starting point for marine biogeochemistry / chemical oceanography: Observations of inorganically dissolved substances. These can be measured very accurately. Why would one not take concentrations of organic substances?
Phytoplankton (plants) Zooplankton (animals) (a) Coccolithophorida (b) Foraminifera Producers of calcium carbonate (CaCO3) shell material Producers of biogenic silica (Bsi) shell material (c) Diatoms (d) Radiolarians Broecker, W.S.,& T.-H. Peng 1982, Tracers in the Sea, ELDIGIO Press
Pacific Atlantic Radiocarbon obs from GEOSECS 1972 The surface ocean is contaminated with bomb 14C.
Pacific Atlantic Radiocarbon obs from GEOSECS 1972 The surface ocean is contaminated with bomb 14C.
Hansen, B., S. Østerhus, D. Quadfasel, and W. Turrell, Already the day after tomorrow, Science, 305, 953-954.
Meridional Overturning Circulation (Schmitz, 1995) with NADW and AABW loops
Western Atlantic tritium cross section Already the day after tomorrow From Østlund and Grall, 1987
Western Atlantic tritium cross section Already the day after tomorrow From Østlund and Grall, 1987
1972 1981 From Østlund and Grall, 1987 Already the day after tomorrow
Model intercomparison for CFC GOSAC report Orr et al., 2002