Sentences with phrase «on holocene»

Law Dome d18O is intrinsically an extremely interesting proxy for readers interested in a Southern Hemisphere perspective on the Holocene (balancing the somewhat hackneyed commentary citing the Cuffey - Clow reconstruction based on GISP2 ice core in Greenland).

(For a different perspective based on Holocene ocean sediments under the Ellesmere Island ice shelf, see the recent Antoniades et al (PNAS 2011).

I agree that the core top dating issues have negligible impact on the Holocene scale trends.

Pick any point on the Holocene proxy record and go back 4627 years, the solar output should be the same.

There is some new work on the Holocene conundrum where temperatures have been cooling despite rising CO2 for several millennia.

I'm not an expert on earlier papers on holocene temperatures, but no one has protested (as far ad I know) on their claim that their paper is the first to present results of comparable quality.

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

DC, I passed through Climate of the Past today and spotted this new paper on Holocene climate in northern Europe.

Schultz 1972 is about climatic impacts on Holocene mammal migrations.

An overview of the geological record of sea level rise is provided, with a focus on Holocene (the current interglacial).

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.

Yet they are «abnormal» on the holocene scale (though not so on a larger geological scale).

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.

Click here for information on the Holocene Sediments of the Belize Shelf.

Present day HadCrut data is shown in red on the Holocene MIS 1 temperature proxy curve.

Not exact matches

Holocene thinking rests on the assumption that there is this big, inexhaustible alien space out there that we call the environment, from where we can get our raw materials and foods and where we can dump our waste.

Holocene thinking rests on the assumption that there is this big, inexhaustible alien space out there that we call the environment, from where we can get our raw materials and food and where we can dump waste.

Stability of the Larsen B Ice Shelf on the Antarctic Peninsula during the Holocene Epoch.

Mapping anthropogenic events from the beginning of the Holocene to today would create a timeline of human impacts on Earth.

The article reveals the influence of human activity on the environment due to the beginnings of metallurgy at the end of the Holocene period in southern Europe.

The volume of ash deposited, and the estimated height of the eruption plume (43 kilometers above sea level) put the eruption's magnitude at a minimum of 7 on the volcanic explosivity index (which has a scale of 1 to 8)-- making it one of the largest known in the Holocene.

Until now it had been assumed that thermophilic reptiles survived the Ice Ages only on the southern peninsulas of Europe and spread northward once the temperatures rose again during the Holocene and the interglacial periods.

Professor Colin Waters, who led the study, said: «Of the 65 «golden spikes» of the Geological Time Scale currently ratified, all but one are located in strata that accumulated on the sea floor, the one exception being the ice core used to define the base of the Holocene Epoch.

This is a reference level within recent strata somewhere in the world that will be proposed to most clearly and consistently characterise the changes as the Holocene, which represents the last 11,700 years of geological time on this planet, gave way into the Anthropocene about 65 years ago.

Evidence from isotopic data on Early Holocene bison and other large herbivores in northern Europe.

Dr. Beth Shapiro, whose work focuses on how populations of organisms respond to climate and habitat change over time, has isolated ancient DNA from a variety of Pleistocene and Holocene species.

The broad comparability between the HML paleo - proxies, Chinese speleothem δ18Orecords, and the northern hemisphere summer insolation throughout the Holocene, suggests that solar insolation exerts a profound influence on ASM [Asian summer monsoon] changes.

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

Stability of the Larsen B ice shelf on the Antarctic Peninsula during the Holocene epoch.

It seems that more northerly ice shelves around the northern Antarctic Peninsula (Prince Gustav, Larsen A) and on the western peninsula (George VI Ice Shelf), may have disintegrated previously during warm phases in the Holocene.

Constraints on the Late Holocene Anthropogenic Contribution to the Atmospheric Methane Budget.

The concatenation of modern and instrumental records [52] is based on an estimate that global temperature in the first decade of the 21st century (+0.8 °C relative to 1880 — 1920) exceeded the Holocene mean by 0.25 ± 0.25 °C.

Recent instrumental data spans 165 + years during the past 11,000 + years of the Holocene interglacial warm period as shown on figure 2.

A limit of approximately 500 GtC on cumulative fossil fuel emissions, accompanied by a net storage of 100 GtC in the biosphere and soil, could keep global temperature close to the Holocene range, assuming that the net future forcing change from other factors is small.

We also infer that population structure existed in the late Pleistocene of North America with Shuká Káa on a different ancestral line compared with other North American individuals from the late Pleistocene or early Holocene (i.e., Anzick - 1 and Kennewick Man).

reconstructing sea - level and ice - sheet changes on timescales ranging from the 20th century, to the late Holocene, to the last 150 thousand years, through statistical and geophysical modeling of geological and observational records;

Morphological, pedological, and sedimentary evolution on the fringe of the southwestern European drylands during the Late Pleistocene and Holocene Premier cartridge collecting site covering all types and forms of ammunition and their history, manufacture, markings and variations

Here on Ambergris Caye, the oldest rocks exposed at the surface are Late Pleistocene and Holocene in age.

What / Why: «The MIT List Visual Arts Center is pleased to present In the Holocene, a group exhibition on view from October 19, 2012, to January 6, 2013, that explores art as a speculative science, investigating priniciples more commonly associated with scientific or mathematical thought.

The Anthropocene Project is based on the research of an international group of scientists making a case to formally change the name of the present geological epoch from Holocene to Anthropocene — the «Human Epoch».

On your other point, yes, the Holocene had been a period of remarkably stable climate.

a) There was a lot of legitimate argument early on about comparisons of the Holocene with other interglacials, alignment, etc..

Instead, he wants us to focus on all the squiggles in the Holocene temperature reconstructions.

* On the other hand, I guess the processes involved in what we call «model drift» could be broadly similar to those which produce Holocene length trends like those seen in the Rosenthal et al. paper.

Constraints on the Late Holocene Anthropogenic Contribution to the Atmospheric Methane Budget

A bit like the YD, the system bounced back and continued on its way to the holocene, as if the YD never happened!

Although Holocene climate events are relatively minor on a glacial / interglacial perspective, the small Holocene changes in the polar vortex and atmospheric storminess documented by O'Brien et al. (1995) would probably cause widespread disruption to human society if they were to occur in the future (Keigwin and Boyle 2000:1343).»

During the so - called Holocene Climate Optimum, from approximately 8000 to 5000 years ago, when the temperatures were somewhat warmer than today, there was significantly less sea ice in the Arctic Ocean, probably less than 50 % of the summer 2007 coverage, which is absolutely lowest on record.

Even putting aside the OHC data and fingerprinting, there is absolutely no evidence in model simulations (or in prevailing reconstructions of the Holocene), that an unforced climate would exhibit half - century timescale global temperature swings of order ~ 1 C. I don't see a good theoretical reason why this should be the case, but since Judith lives on «planet observations» it should be a pause for thought.

Linsley: Our results would suggest that there was more heat in the oceans in the early Holocene but it absorbed that heat much more slowly than it is now, when there are much more rapid changes going on.