Articles | Volume 11, issue 10
Clim. Past, 11, 1271–1295, 2015
Clim. Past, 11, 1271–1295, 2015

Research article 01 Oct 2015

Research article | 01 Oct 2015

Orbital control on late Miocene climate and the North African monsoon: insight from an ensemble of sub-precessional simulations

A. Marzocchi et al.

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Cited articles

Barandiaran, D. and Wang, S.-Y.: The missing teleconnection between the North Atlantic and the Sahel precipitation in CFSv2, Atmos. Sci. Lett., 15, 21–28, 2014.
Bellucci, A., Gualdi, S., and Navarra, A.: The double-ITCZ syndrome in coupled general circulation models: the role of large-scale vertical circulation regimes, J. Climate, 23, 1127–1145, 2010.
Bolton, C. T. and Stoll, H. M.: Late Miocene threshold response of marine algae to carbon dioxide limitation, Nature, 500, 558–562, 2013.
Bosmans, J. H. C., Drijfhout, S. S., Tuenter, E., Lourens, L. J., Hilgen, F. J., and Weber, S. L.: Monsoonal response to mid-holocene orbital forcing in a high resolution GCM, Clim. Past, 8, 723–740,, 2012.
Bosmans, J. H. C., Drijfhout, S. S., Tuenter, E., Hilgen, F. J., and Lourens, L. J.: Response of the North African summer monsoon to precession and obliquity forcings in the EC-Earth GCM, Clim. Dynam., 44, 279–297, 2015a.
Short summary
This paper investigates the climatic response to orbital forcing through the analysis of an ensemble of simulations covering a late Miocene precession cycle. Including orbital variability in our model–data comparison reduces the mismatch between the proxy record and model output. Our results indicate that ignoring orbital variability could lead to miscorrelations in proxy reconstructions. The North African summer monsoon's sensitivity is high to orbits, moderate to paleogeography and low to CO2.