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The pacemaker always rings twice
- Source :
- Paleoceanography. 15:616-624
- Publication Year :
- 2000
- Publisher :
- American Geophysical Union (AGU), 2000.
-
Abstract
- We generated new, long, high-resolution, climate proxy records from Deep Sea Drilling Project (DSDP) Sites 607 and 609 in the subpolar North Atlantic over the interval 225–970 ka, which have pronounced variability at periods f > 1/7 kyr) variance in our North Atlantic climate proxy records is shown, using bispectral and cross-bispectral methods, to be explainable as harmonics and/or combination tones of orbital-scale climatic variability of the North Atlantic region itself. Thus the timing and amplitude of high-frequency climate change in the North Atlantic region appears to be a nonlinear function of variations in high-latitude climate at Milankovitch frequencies.
Details
- ISSN :
- 08838305
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Paleoceanography
- Accession number :
- edsair.doi...........841ec148a656adbfa73ddf8d116b6e18