From Wikipedia, the free encyclopedia
Chemical oceanography
Chemical oceanography
Chemical oceanography is the study of the behavior of the chemical elements within the Earth’s oceans. The ocean is unique in that it contains - in greater or lesser quantities nearly every element in the periodic table. Much of chemical oceanography describes the cycling of these elements both within the ocean and with the other spheres of the Earth system (see biogeochemical cycle). These cycles are usually characterised as quantitative fluxes between constituent reservoirs defined within the ocean system and as residence times within the ocean. Of particular global and climatic significance are the cycles of the biologically active elements such as carbon, nitrogen, and phosphorus as well as those of some important trace elements such as iron. Another important area of study in chemical oceanography is the behaviour of isotopes (see isotope geochemistry) and how they can be used as tracers of past and present oceanographic and climatic processes. For example, the incidence of 18O (the heavy isotope of oxygen) can be used as an indicator of polar ice sheet extent, and boron isotopes are key indicators of the pH and CO2 content of oceans in the geologic past.
Bibliography
• Frank J. Millero. Chemical Oceanography, Third Edition. CRC, 2005. ISBN 0849322804. • Chemical Oceanography, Vol. 1- 10 (2nd Ed.) - J. P. Riley and G. Skirrow, eds, Academic Press (1975- 1989). • Riley, J. P. and Chester, R. Introduction to Marine Chemistry, Academic Press, 1971. ISBN 0125887507.
See also
• Anoxic event - Anoxic sea water - Hypoxia (environmental) • Climate change • Global Ocean Data Analysis Project • Oceanography • Physical oceanography • World Ocean Atlas
Retrieved from "http://en.wikipedia.org/wiki/Chemical_oceanography" Categories: Oceanography stubs, Chemical oceanography, Oceanography, Geochemistry This page was last modified on 30 March 2009, at 00:45 (UTC). All text is available under the terms of the GNU Free Documentation License. (See Copyrights for details.) Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a U.S. registered 501(c)(3) taxdeductible nonprofit charity. Privacy policy About Wikipedia Disclaimers
1