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Variations of Oceanic Oxygen Isotopes at the Present Day and the Lgm: Equilibrium Simulations with an Oceanic General Circulation Model : Volume 8, Issue 5 (01/10/2012)

By Xu, X.

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Book Id: WPLBN0003984075
Format Type: PDF Article :
File Size: Pages 38
Reproduction Date: 2015

Title: Variations of Oceanic Oxygen Isotopes at the Present Day and the Lgm: Equilibrium Simulations with an Oceanic General Circulation Model : Volume 8, Issue 5 (01/10/2012)  
Author: Xu, X.
Volume: Vol. 8, Issue 5
Language: English
Subject: Science, Climate, Past
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Zhang, X., Werner, M., Lohmann, G., & Xu, X. (2012). Variations of Oceanic Oxygen Isotopes at the Present Day and the Lgm: Equilibrium Simulations with an Oceanic General Circulation Model : Volume 8, Issue 5 (01/10/2012). Retrieved from http://www.ebooklibrary.org/


Description
Description: Alfred Wegener Insitute for Polar and Marine Research, Bremerhaven, Germany. The isotope-enabled oceanic general circulation model, MPI-OM, is used to simulate the oxygen isotope compositions of sea waters in the oceans under preindustrial and last glacial maximum climate conditions. Simulated oceanic isotope distributions at the last glacial maximum (21 000 yr ago) show features similar to the preindustrial in most basins but the Northern North Atlantic. With the exception of the ice sheet impact, the oxygen-18 content variations at sea surface during the last glacial maximum are mainly controlled by the changes in boundary isotopic fluxes in most regions, while the changes from subsurface to bottom waters are mostly due to the differences in the water mass circulations. The changes in topography at the northern high latitudes have a remarkable influence on the isotopic composition in the Arctic Ocean. The pre-industrial and the last glacial maximum calcite oxygen isotope compositions in the surface water and their difference are also calculated. These results are compared with the observed values from different foraminifera species and are in agreement with the observations in most regions.

Summary
Variations of oceanic oxygen isotopes at the present day and the LGM: equilibrium simulations with an oceanic general circulation model

Excerpt
Alkama, R., Kageyama, M., Ramstein, G., Marti, O., Ribstein, P., and Swingedouw, D.: Impact of a realistic river routing in coupled ocean-atmosphere simulations of the Last Glacial Maximum climate, Clim. Dynam., 30, 855–869, doi:10.1007/s00382-007-0330-1, 2008.; Anderson, D., Prell, W., and Barratt, N.: Estimates of sea surface temperature in the Coral Sea at the last glacial maximum, Paleoceanography, 4, 615–627, 1989.; Baertschi, P.: Absolute 18O content of standard mean ocean water, Earth Planet. Sc. Lett., 31, 341–344, 1976.; Ballantyne, A. P., Lavine, M., Crowley, T. J., Liu, J., and Baker, P. B.: Meta-analysis of tropical surface temperatures during the Last Glacial Maximum, Geophys. Res. Lett., 32, L05712, doi:10.1029/2004GL021217, 2005.; Steele, M., Morley, R., and Ermold, W.: PHC: a global ocean hydrography with a high-quality Arctic Ocean, J. Climate, 14, 2079–2087, 2001.; Barrows, T. T. and Juggins, S.: Sea-surface temperatures around the Australian margin and Indian ocean during the last glacial maximum, Quaternary Sci. Rev., 24, 1017–1047, doi:10.1016/j.quascirev.2004.07.020, 2005.; Bemis, B. E., Spero, H. J., Bijma, J., and Lea, D. W.: Reevaluation of the oxygen isotopic composition of planktonic foraminifera: experimental results and revised paleotemperature equations, Paleoceanography, 13, 150–160, 1998.; Broecker, W. S.: Oxygen isotope constraints on surface ocean temperatures, Quaternary Res., 26, 121–134, 1986.; Brovkin, V., Raddatz, T., Reick, C. H., Claussen, M., and Gayler, V.: Global biogeophysical interactions between forest and climate, Geophys. Res. Lett., 36, L07405, doi:10.1029/2009GL037543, 2009.; Clauzet, G., Wainer, I., Lazar, A., Brady, E., and Otto-Bliesner, B.: A numerical study of the South Atlantic circulation at the Last Glacial Maximum, AAPG Stud. Geol., 253, 509–528, doi:10.1016/j.palaeo.2007.06.018, 2007.; Craig, H.: Measurement of oxygen isotope paleotemperatures, in: Stable Isotopes in Oceanographic Studies and Paleotemperatures, edited by: Tongiorgi, E., Cons. Naz. Delle. Ric, Spoleto, Italy, 161–182, 1965.; Craig, H. and Gordon, L. I.: Deuterium and oxygen 18 variations in the ocean and the marine atmosphere, in: Stable Isotopes in Oceanographic Studies and Paleotemperatures, edited by: Tongiorgi, E., Cons. Naz. di Rech., Spoleto, Italy, 9–130, 1965.; de Vernal, A., Rosell-Mele, A., Kucera, M., Hillaire-Marcel, C., Eynaud, F., Weinelt, M., Dokken, T., and Kageyama, M.: Comparing proxies for the reconstruction of LGM sea-surface conditions in the Northern North Atlantic, Quaternary Sci. Rev., 25, 2820–2834, doi:10.1016/j.palaeo.2007.06.018, 2006.; Emiliani, C.: Pleistocene temperatures, J. Geol., 538–578, 1955.; Epstein, S., Buchsbaum, R., Lowenstam, H. A., and Urey, H. C.: Revised carbonate-water isotopic temperature scale, Geol. Soc. Am. Bull., 64, 1315–1326, 1953.; Erez, J. and Luz, B.: Experimental paleotemperature equation for

 

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