Sentences with phrase «year periodicity evidenced»

Amongst the well - known proxies that have revealed a millennial - scale climate variability during the Holocene, the ice - rafted debris (IRD) indices in the North Atlantic developed by Bond et al. (1997, 2001) present a cyclicity of 1470 ± 500 years, which matches the 1228 ± 327 - year periodicity evidenced in the Mar Menor, considering the respective uncertainties in the periodicities.

Not exact matches

It has also been known that a component of the variability seems to have a full period of about 60 years although the evidence has not been strong on any real periodicity or even quasi-periodicity.

These events not only show a corresponding age and correct periodicity, but they also constitute the highest petrological tracer peaks for each 2400 year period, suggesting that they were the strongest cooling periods at each time, as glaciological, biological and geophysical evidence also supports.

The evidence, however, shows that the HCO displays a millennial periodicity in Bond events, with single isolated peaks separated by ~ 1000 years, while the Neoglacial shows a more complex picture with multiple peaks not so well resolved and a more irregular spacing.

I don't know if the 4672 - year periodicity is also present in the ¹⁴ C evidence.

Evidence is presented specifying the timing and amplitude of the natural 60 + / - year and, more importantly, 1,000 year periodicities (observed emergent behaviors) that are so obvious in the temperature record.