Chemical Oceanography (Ocean 520) FORMAT, Autumn 2008 Professor: TA: Steven Emerson, 419 OSB, 3-0428; emerson@u.washington.edu Office Hours: Anytime, call or e-mail ahead David Munro, 420 OSB, 1-6740, dmunro@u.washington.edu Office hours: to be determined, or call or e-mail ahead Class Hours and Location: MWF 10:30 - 11:20; OSB 425 Course Web Site: http://courses.washington.edu/ocean520/MarineChem.shtml Course-Format: The normal week will consist of 2 lectures (M,W) and one group learning session on Friday. There are text chapters in addition to a few classic journal articles to accompany the lectures. There will be seven short problem sets due on Wednesdays. The group learning sessions on Friday will consist of a problem solving session in which students will discuss among themselves the problems like those due the next week. There will be three tests. Text: Lectures follow the first 7 chapters of the new book: Chemical Oceanography and the Carbon Cycle (Emerson and Hedges). This is required reading and the book is available in the University Book Store. Library Reserve: Copies of other texts that cover much of the material covered in this class are on reserve in the Fisheries and Oceanography Library. Web: Lecture material in addition to that in the book, problems and problem solutions will be placed on the web site for the class. Grades: Problems: 40% Tests: 50% Class Participation 10% Chemical Oceanography (Oce. 520) Course Outline, Autumn 2008 Week Subject Reading Problems (1) E&H Chapter I Introduction Sept 24 W. Salinity, Major Ions F. Trace metals, gases Hand out prob.#1 (2) E&H Chapter II Mass Balance Sept. 29 M. Mass Bal, Res. Time W. Reverse Weathering Problem #1 due F. Problem Discussion Hand out prob. #2 (3) E&H Chapter II Hydrothermal Circulation Oct. 6 M. Hydrothermal Circ. W. Paper Discussion (Edmond et al., Problem #2 due F. Test #1 1979) (4) E&H Chapter III Ions in Solution Oct. 13 M. Activity Coefficients W. Equilibrium Constant F. Problem Discussion Hand out prob. #3 (5) E&H Chapter IV Carbonate System Oct. 20 M. Acids & Bases W. DIC, AT, pH Problem #3 due F. Problem Discussion Hand out prob. #4 (6) E&H Chapter V Radioisotopes Oct. 27 M. Radioisotope decay, 14C,3H W. Radioisotopes, U. Series Problem #4 due F. Problem Discussion Hand out prob. #5 (7) E&H Chapter V Stable Isotopes Nov. 3 M. Isotope Fractionation W. C and O Isotopes (DM) Problem #5 due F. Test #2 (8) E&H Chapter VI Life in the Ocean Nov 10 M. 2 Layer Ocean/RKR W. Biological Pump F. Problem Discussion Hand out Prob. #6 (9) E&H Chapter VI Life (cont.) Nov. 17 M. AOU and OUR W. Paper discussion (Jenkins, 1998) Prob. #6 due, F. Problem discussion Hand out prob. #7 (10) Life (cont.) Nov. 24 M. Trace Metals / Bio. Proc. W. Paper Discussion (Boyd et al., 2007) Problem #7 due F. Holiday (11) E&H Chapter VII Paleoceanography Dec. 1 M. δ18O stratigraphy W. δ13C, Cd/Ca ratios F. Paper Discussion (Boyle, 1988) Finals wk. Test #3 Chemical Oceanography (Ocean 520) BIBLIOGRAPHY of Discussion Papers and Supplemental Reading Autumn, 2008 COURSE TEXT: Emerson, S. and J. I. Hedges (2008) Chemical Oceanography and the Carbon Cycle, Cambridge U. Press, 453 p. JOURNAL ARTICLES: Boyd, P. et al. (2007) Mesoscale iron enrichment experiments 1993-2005: Synthesis and future directions, Science, 315, 612-617. Boyle, E. (1988) The role of vertical chemical fractionation in controlling late quaternary atmospheric carbon dioxide, Jour. Geophys. Res., 93, 15701-15714. Edmond, J. et al., (1979) Ridge crest hydrothermal activity and the balances of major and minor elements I the ocean: The Galapagos data, Earth Planet. Sci. Let., 46, 1-18. Jenkins, W. (1998) Studying subtropical thermocline ventilation and circulation using tritium and 3He, Jour. Geophys. Res., 103, 15817-15831. SUPPLEMENTAL REFERENCES (Books on Reserve in the Fish-Ocean Library): Sarmiento, J. and N. Gruber (2006) Ocean Biogeochemical Dynamics, Princeton U. Press, Princeton, N.J. Broecker, W.S. and T.-H. Peng (1982) Tracers in the Sea, Eldigio Press, Palisades, N.Y., 690 p. Millero, F. (1996) Chemical Oceanography, CRC Press, Boca Raton, Fla., 469 p. Zeebe, R. and D. Wolf-Gladrow (2001) CO2 in seawater: Equilibrium, kinetics, isotopes, Elsevier Oceanograpy Series 65, Elsevier, Amsterdam, 346 p. Pilson, M.E.Q. (1998) An Introduction to the Chemistry of the Sea, Prentice Hall, Upper Saddle River, N.J., 431.