Sentences with phrase «holocene thermal»

http://science.sciencemag.org/content/342/6158/617.abstract We show that water masses linked to North Pacific and Antarctic intermediate waters [0 - 700 m] were warmer by 2.1 ± 0.4 °C and 1.5 ± 0.4 °C, respectively, during the middle Holocene Thermal Maximum than over the past century.

The period ~ 8.5 to 6 ky B.P. marks the Holocene Thermal Maximum (HTM) in this area.

«Holocene Thermal Maximum» is another one that should only be used with care, and with the explicit knowledge that it was a time - transgressive event totally unlike the recent global warming.

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.

«During the Holocene Climatic Optimum of 8,000 to 5,000 years ago, the Arctic sea ice was less than 50 % (so less than 2.6 mln sq km) of the lowest extent on satellite record, the 2007 melting record,... during the HCO or HTM (Holocene Thermal Maximum) it was warmer than today — in the Arctic on average about 1.6 degrees Celsius.»

Yet, during the Holocene Thermal Maximum, the climate of Svalbard was considerably warmer than at present.

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.

There is no consensus about the variation in sea level since then although many scientists have concluded that the sea level was higher than today during the Holocene Thermal optimum from 9,000 to 5,000 years ago when the Sahara was green.

We know about the Holocene Climate Optimum or aka Hypsithermal, Altithermal, Climatic Optimum, Holocene Optimum, Holocene Thermal Maximum, and Holocene (according to wiki).

We show that water masses linked to North Pacific and Antarctic intermediate waters were warmer by 2.1 ± 0.4 °C and 1.5 ± 0.4 °C, respectively, during the middle Holocene Thermal Maximum than over the past century.

The Holocene Thermal Maximum around Svalbard, Arctic North Atlantic; molluscs show early and exceptional warmth.

Renssen, H. (2012) Global characterization of the Holocene Thermal Maximum.

Myrrh March 24, 2013 at 6:38 pm You are referring to two studies from northern Russia, Climate change and the northern Russian treeline zone and The Holocene thermal maximum and late - Holocene cooling in the tundra of NE European Russia

we conclude that the current decadal mean temperature in Greenland has not exceeded the envelope of natural variability over the past 4000 years, a period that seems to include part of the Holocene Thermal Maximum.

Kelly and Lowell (2009) say that «subsequent to late - glacial or early Holocene time, most local glaciers were smaller than at present or may have disappeared completely during the Holocene Thermal Maximum,»

Our records suggest that the early - Holocene summer temperatures from 11,500 cal yr BP onwards were already slightly higher than at present, followed by a stable Holocene Thermal Maximum (HTM) at 8000 - 3500 cal yr BP when summer temperatures in the tundra were ca. 3 degrees C above present - day values.

The many climatic fluctuations afterwards, including the Younger Dryas, the Holocene Thermal Maximum and The Little Ice Age, were all local disturbances.

Holocene Thermal Optimum.

For example, during the «Holocene thermal maximum,» the warmest period of the past 10,000 years, the Arctic average temperature was two to three degrees warmer than it is today, while the global average was only a degree or so warmer.

Taking these improved estimates and comparing them to the numbers from Renssen et al 2012 on the Holocene Thermal Maximum, it appears humanity will fall well short of establishing a new date for a global average HTM in the 21st century.

The 8.2 kyr Holocene thermal maximum is thought to have been buffered by the presence of the Laurentide ice sheet in the northern hemisphere.

Yes, Climate Audit attacked this new work too — although they ignored previous efforts by Kaufman and others on the Holocene Thermal Maximum, some 9,000 - 11,000 years ago.

The 8.2 kyr Holocene thermal maximum is thought to have been buffered by the presence of the Laurentide ice sheet in the northern hemisphere.

Let us just concentrate on the warming from LGM (20 kya) to the Holocene Thermal Optimum (10 kya).

Not exact matches

The Arctic shelf is currently undergoing dramatic thermal changes caused by the continued warming associated with Holocene sea level rise.

And is there any reason to believe that thermal stratification has been constant throughout Holocene lake history?

There are no global warming abrupt changes in the Holocene once the thermal maximum is reached, just cooling events followed by recovery.

From thermal equilibrium (radiative forcing relatively zero including natural variation) for the past 10,000 years (Holocene), since the beginning of the Industrial age, the earth climate system is currently estimated to be 3.6 W / m2 positively charged (GHG's, and -2.0 W / m2 negatively charged (aerosols).