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  Distribution of 32Si in the world ocean: Model compared to observation

Peng, T., Maier-Reimer, E., & Broecker, W. (1993). Distribution of 32Si in the world ocean: Model compared to observation. Global Biogeochemical Cycles, 7, 463-474. doi:10.1029/93GB00686.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-CEB4-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-CEB5-8
Genre: Journal Article

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Peng_et_al-1993-Global_Biogeochemical_Cycles.pdf (Publisher version), 508KB
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 Creators:
Peng, T.‐H.1, Author
Maier-Reimer, Ernst2, Author              
Broecker, W.S.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2MPI for Meteorology, Max Planck Society, ou_913545              

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Free keywords: distribution; GEOSECS program; isotopic analysis; model-data comparison; modelling; ocean model; silica; silicon distribution; silicon-32 measurement; silicon/silicate ratio; upwelling, Atlantic; Indian Ocean; Pacific
 Abstract: Calculations of the 32Si/SiO2 ratio obtained in ocean models are compared with measurements of this ratio made as part of the GEOSECS program (Somayajulu et al., 1987, 1991). A major difference is found; while the models predict threefold to fivefold higher ratios in the deep Atlantic Ocean than in the deep Pacific and Indian oceans, no such difference is seen in the measurements. This points to a flaw in the measurements. Our modeling results suggest that the most interesting application for this 120‐year half‐life cosmogenic isotope is as a monitor of upwelling. However, considering the expense and difficulty associated with 32Si measurements, such studies may prove impractical. Copyright 1993 by the American Geophysical Union.

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Language(s): eng - English
 Dates: 1993
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: DOI: 10.1029/93GB00686
BibTex Citekey: Peng1993463
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Title: Global Biogeochemical Cycles
Source Genre: Journal
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Pages: - Volume / Issue: 7 Sequence Number: - Start / End Page: 463 - 474 Identifier: ISSN: 08866236