Sentences with phrase «holocene peak»

The cooling trend since the Holocene peak consists of many multi-centennial warming / cooling excursions, one of them being the latest multi-centennial warming trend.

DOI: 10.1016 / S0377 - 8398 (01) 00011 - 1 An early Holocene peak occurrence and recent distribution of Rhizoplegma boreale (Radiolaria): a biomarker in the Norwegian Sea

Dolven, J., & Bjørklund, K. (2001) An early Holocene peak occurrence and recent distribution of Rhizoplegma boreale (Radiolaria): a biomarker in the Norwegian Sea.

The «Holocene Optimum» series have been mixed in with a bunch of «random noise» series and some «Holocene dip» series which has the effect of bringing the Holocene peak down to below a degree.

Not exact matches

Figure 6: a) spectral power density periodogram of Vostok temperature - proxy records over the Holocene for 12,000 years showing six peaks.

The last deglaciation occurred as a long process between peak glacial conditions (from ~ 26 - 20,000 years ago) to the Holocene (~ 10,000 years ago).

Second, the warming following the end of the last glaciation peaked 8000 to 6000 years ago at what is known as the Holocene Climate Maximum (or Optimum in some sources).

Behind peak oil and impacts of climate change on habitation and food supply, sea level rise will be the final wet blanket that will sweep inexorably over the inhabitants of the old Holocene.

The drying trend apparently reached its peak about 5,500 to 7,500 years ago (referred to as Antev's Altithermal) and has ranged between that peak and the cold, wet conditions of the early Holocene since that time.

Figure 1: Global temperature relative to peak Holocene temperature, based on ocean cores.

This slow decline in the 10 kyr after the initial peak is in contrast to the slowly increasing CO2 levels in the Holocene and the even slower increase in MIS 11, despite the similar orbital configuration of these three periods.

During this period, global temperatures were 1.5 - 2.0 °C warmer than the peak warmth of the present interglacial, or Holocene, in which we are now living.

Anyway, today we try to explain the exact opposite: how northern hemisphere ice ages can quite suddenly weaken — at least in case of the last one, which had its cold peak around 18,000 years ago, after which atmospheric CO2 levels «suddenly» (over a millennium or so) rose by 30 per cent, and temperatures started to climb closer * to our current Holocene values.

«Earth at peak Holocene temperature is poised such that additional warming instigates large amplifying high - latitude feedbacks.

And the third set of around twenty series shows the holocene optimum we know, with a peak around 2 C warmer than today.

al (2001) that D / O cycles of about 1500 yr duration can be recognized in North Atlantic Holocene marine sediments with warm and cold peaks that coincide with the MWP and LIA was enough to convince me that Mann's data were deeply flawed.

Instead of starting at the bottom of the Little Ice Age, do the same chart beginning at the peak of the Holocene Optimum!

Nor would one expect the dates to coincide with peak Holocene warmth.

Presumably as the peak nears the other elements of a perfect storm line up and booyah the curtain falls on the Holocene.

If you look at the last 11,500 years, the current warming is approximately «on time» (with no CO2 effect whatsoever), and the warming peaks display a downward trend since the «Holocene Optimum».

Furthermore, much evidence indicates that today's warm temperatures remain below peak temperatures experienced during the Medieval Warm Period of 1,000 years ago, the Roman Warm Period of 2,000 years ago and the Holocene Climatic Optimum of 5,000 years ago.

8) Additional Holocene abrupt climatic variability is reflected in Bond peaks of increased drift ice in the North Atlantic.

Every frequency analysis of Holocene solar activity reconstructions shows a strong peak at ~ 1000 year (figure 62 A & C, Darby et al., 2012; Kern et al., 2012).

It is clear that the Bond record mixed periodicity reflects the climatic shift that took place at the MHT from mainly solar forcing to a mixed solar and oceanic forcing (figure 41), and therefore it can be concluded that the first assumption of Gerard Bond is incorrect: different peaks represent cooling from different causes, and thus a Bond cycle does not exist in the Holocene.

Despite the stability of those ice sheets in the Holocene, there is evidence that sea level was much more variable during the Eemian, when we estimate the peak global temperature was only +1.0 °C warmer than in the first decade of the twenty - first century.

At the peak of the Holocene Optimum 10,000 years BP (Before Present), coral adapted to tropical ocean temperatures in the heart of the Coral Triangle that were 2.1 °C warmer than today.

The (unarchived) Masson et al dD series also shows peak Early Holocene warmth with a gradual decline through the Holocene, with low values in the 20th century.

That was toward the end of the Holocene Thermal Maximum, itself the drawn - out response to peak orbital (Milankovitch) forcing and associated feedbacks that terminated the last glacial 11.5 ka.

Sea level in the Eemian interglacial peaked some 6 — 9 meters higher than it's ever been during the Holocene.

But overall the trend has been down, (as had the general direction of CO2 concentration, which had peaked during the Holocene Climate Optimum, and was also trending down until industrialization.

The late Pleistocene to Holocene boundary shows a prestigious pedogenesis, the loess — paleosol sequences of the central and northern Great Plains record a broad peak of high effective moisture, a pedogenesis we can emulate with the bio-remediation techniques we advocate on these lists as the only economic way to reverse climate change..

Vincent van der Goes (370)-- There is a paper by Abe et al. describing a GCM run from the Eemian interglacial (125,000 ya) to the peak of the Holocene (about 7000 ya).

Based on the paleoclimate record from ice and ocean cores, the last warm period in the Arctic peaked about 8,000 years ago, during the so - called Holocene Thermal Maximum.

The interim peak target I have selected at present is ~ 1 C, based on Hansen's recommendation to stay as close to prior Holocene temperature as possible.