Bond Cycles

Bond, G., Kromer, B., Beer, J., Muscheler, R., Evans, M.N., Showers, W., Hoffmann, S., Lotti-Bond, R., Hajdas, I. and Bonani, G. 2001. Persistent Solar Influence on North Atlantic Climate During the Holocene. Science 294: 2130-2136. www.sciencemag.org

A close correlation exists between the production rates of the cosmogenic nuclides C14 and Be10 and changes in drift ice sediment in deep-sea cores. Solar forcing may underlie the "1500-year" cycle. Surface hydrographic changes may affect North Atlantic Deep Water production.
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Fleitmann, D., Burns, S. J., Mudelsee, M., Neff, U., Kramers, J., Mangini, A., Matter, A. 2003. Holocene Forcing of the Indian Monsoon Recorded in a Stalagmite from Southern Oman. Science 300: 1737-1739. www.sciencemag.org

An δ18O record from a thorium-uranium-dated stalagmite from southern Oman records high monsoon precipitation 10.3 to 2.7 and 1.4 to 0.4 ky.



Michael Schulz1 and André Paul. 2002. Holocene Climate Variability on Centennial-to-Millennial Time Scales: 1. Climate Records from the North-Atlantic Realm pp 41-54. in From Wefer, G. Berger, W., Behre, K-E., Jansen, E. eds, Climate Development and History of the North Atlantic Realm. Springer-Verlag Berlin Heidelberg,

We suggest a 900-yr climate cycle probably triggered by negative salinity anomalies in the North Atlantic. Two such triggering events centered at ~8.3 and 4.7 ky BP are noted.



Morrill, C., Overpeck, J.T., Cole, J.E. 2003. A systhesis of abrupt changes in the Asian summer monsoon since the last deglaciation. The Holocene 13: 465-476.

Our results indicate that abrupt climate changes occurred at ~ 11.5, 4.5-5.0, and ca. 1.3 ka.