Articles | Volume 11, issue 10
https://doi.org/10.5194/cp-11-1335-2015
https://doi.org/10.5194/cp-11-1335-2015
Research article
 | 
09 Oct 2015
Research article |  | 09 Oct 2015

Obliquity forcing of low-latitude climate

J. H. C. Bosmans, F. J. Hilgen, E. Tuenter, and L. J. Lourens

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Cited articles

Antico, A., Marchal, O., Mysak, L., and Vimeux, F.: Milankovitch Forcing and Meridional Moisture Flux in the Atmosphere: Insight from a Zonally Averaged Ocean-Atmosphere Model, J. Climate, 23, 4841–4855, 2010.
Bloemendal, J. and deMenocal, P.: Evidence for a change in the periodicity of tropical climate cycles at 2.4 Myr from whole-core magnetic susceptibility measurements, Nature, 342, 897–900, 1989.
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, https://doi.org/10.5194/cp-8-723-2012, 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, https://doi.org/10.1007/s00382-014-2260-z, 2015a.
Bosmans, J. H. C., Drijfhout, S. S., Tuenter, E., Hilgen, F. J., Lourens, L. J., and Rohling, E. J.: Precession and obliquity forcing of the freshwater budget over the Mediterranean, Quaternary Sci. Rev., 123, 16–30, https://doi.org/10.1016/j.quascirev.2015.06.008, 2015b.
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Short summary
Our study shows that the influence of obliquity (the tilt of Earth's rotational axis) can be explained through changes in the insolation gradient across the tropics. This explanation is fundamentally different from high-latitude mechanisms that were previously often inferred to explain obliquity signals in low-latitude paleoclimate records, for instance glacial fluctuations. Our study is based on state-of-the-art climate model experiments.