ESD Ideas: Propagation of high-frequency forcing to ice age dynamics

Palaeoclimate records display a continuous background of variability connecting centennial to100 kyr periods. Hence, the dynamics at the centennial, millennial, and astronomical timescales should not betreated separately. Here, we show that the nonlinear character of ice sheet dynamics, which was de...

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Bibliographic Details
Published in:Earth System Dynamics
Main Authors: Verbitsky, Mikhail Y., Crucifix, Michel, Volobuev, Dmitry M.
Other Authors: UCL - SST/ELI/ELIC - Earth & Climate
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus GmbH 2019
Subjects:
General Earth and Planetary Sciences
Ice Sheet
Online Access:http://hdl.handle.net/2078.1/216249
https://doi.org/10.5194/esd-10-257-2019
Description
Summary:Palaeoclimate records display a continuous background of variability connecting centennial to100 kyr periods. Hence, the dynamics at the centennial, millennial, and astronomical timescales should not betreated separately. Here, we show that the nonlinear character of ice sheet dynamics, which was derived natu-rally from the ice-flow conservation laws, provides the scaling constraints to explain the structure of the observedspectrum of variability

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