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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Volume 9, issue 10 | Copyright
Geosci. Model Dev., 9, 3517-3531, 2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Model description paper 30 Sep 2016

Model description paper | 30 Sep 2016

Astronomical component estimation (ACE v.1) by time-variant sinusoidal modeling

Matthias Sinnesael et al.
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Cited articles
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Arthur, M. A. and Fischer, A. G.: Upper Cretaceous–Paleocene magnetic stratigraphy at Gubbio, Italy I. Lithostratigraphy and sedimentology, Geol. Soc. Am. Bull., 88, 367–371,<367:UCMSAG>2.0.CO;2, 1977.
Berger, A. L., Loutre, M. F., and Laskar, J.: Stability of the Astronomical Frequencies Over the Earth's History for Paleoclimate Studies, Science, 255, 560–566,, 1992.
Boashash, B.: Estimating and Interpreting The Instantaneous Frequency of a Signal-Part 1: Fundamentals, P. IEEE, 80, 520–538,, 1992.
Cleaveland, L. C. and Herbert, T. D.: Coherent obliquity band and heterogeneous precession band responses in early Pleistocene tropical sea surface temperatures, Paleoceanography, 22, PA2216,, 2007.
Publications Copernicus
Short summary
Classical spectral analysis often relies on methods based on (Fast) Fourier Transformation. This technique has no unique solution separating variations in amplitude and frequency. This drawback is circumvented by using a polynomial approach (ACE v.1 model) to estimate instantaneous amplitude and frequency in orbital components. The model is illustrated and validated using a synthetic insolation signal and tested on two case studies: a benthic δ18O record and a magnetic susceptibility record.
Classical spectral analysis often relies on methods based on (Fast) Fourier Transformation. This...