Sentences with phrase «ice core research»

for his outstanding contributions to ice core research through the modeling of water isotopes and their use for paleoclimate reconstruction

Two comprehensive chapters on dating methods provide the foundation for all paleoclimatic studies and are followed by up - to - date coverage of ice core research, continental geological and biological records, pollen analysis, radiocarbon dating, tree rings and historical records.

This talk will draw upon results from ice core research over the past twenty years, as well as a new NRC report on abrupt climate change in order to address abrupt change, as seen in the past in ice cores, as seen today in key environmental systems upon which humans depend, and what may be coming in the future.

Ice core research has already provided convincing evidence of human - caused climate change by demonstrating a carbon dioxide - climate link.

By Mark Bowen This is a book focussing on the ice core research at high altitudes and mid-latitudes conducted by Lonnie Thompson of Ohio State.

As for what I wish for... I'm a skier, and the ice core research I do requires very cold conditions, so I am hoping against hope for some cooler weather.

He would capture the essence of the meeting and outline a cohesive course of action that would progress ice core research.

Under his leadership, the field of ice core research took cohesive shape.

New ice core research suggests that, while the changes are dramatic, they can not be attributed with confidence to human - caused global warming, said Eric Steig, a University of Washington professor of Earth and space sciences.

Not exact matches

Using data from 16 ice cores collected from widely spaced locations around the Antarctic continent, including the South Pole, a group led by Joe McConnell of the Desert Research Institute (DRI) in Reno, Nevada, created the most accurate and precise reconstruction to date of lead pollution over Earth's southernmost continent.

The cores, some as long as 100 - feet, were transported to Dartmouth where the research team used a light table to measure the thickness and frequency of the ice layers.

«In any case, the results of our model study give a clear indication that the bipolar variability of sulfate deposits must be taken into consideration if the traces of large volcanic eruptions are to be deduced from ice cores,» says Dr. Krüger, «Several research groups that deal with this issue have already contacted us to verify their data through our model results.»

Atmospheric scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel and the Max Planck Institute for Meteorology in Hamburg have now found an explanation that could significantly improve the interpretation of ice cores.

The new pH method has already been used on ice cores from Greenland and Antarctica by research teams from New Zealand, the United States and Denmark.

«That's the other remarkable thing about this research,» said Osterberg, «not only are we seeing strong agreement between the two Denali cores, we are finding the same story of intensified storminess recorded in ice cores collected 13 years and 400 miles apart.»

The research, an analysis of sea salt sodium levels in mountain ice cores, finds that warming sea surface temperatures in the tropical Pacific Ocean have intensified the Aleutian Low pressure system that drives storm activity in the North Pacific.

Its core is a flurry of recent research proposing that such extreme weather events in the midlatitudes are linked through the atmosphere with the effects of rapid climate change in the Arctic, such as dwindling sea ice.

The research team drilled two ice cores from a glacier on Mt. Hunter's summit plateau, 13,000 feet above sea level.

In the climate research community, ice cores are generally considered the gold standard, because their layers are highly consistent, unlike sediment layers from the seafloor, which are frequently marred by tectonic shifts, currents or marine organisms.

Hundreds of ice cores taken from around the world will be stored for several centuries in a snow cave at -54 °C in Antarctica, at the Concordia station, which is run by the French Polar Institute (IPEV) and the Italian Antarctic Research program (PNRA).

Current research methods such as ice - core drilling can produce high - quality records of aerosols and soot going back centuries and even millennia, he says, and «these written accounts provide a good complement» to the data.

Lonnie Thompson, an earth scientist at The Ohio State University's Byrd Polar Research Center who also is not part of the project and has been drilling ice cores on the world's highest mountain ranges for 38 years.

Modeler Bette Otto - Bliesner of the National Center for Atmospheric Research in Boulder and paleoclimatologist Jonathan Overpeck of the University of Arizona matched results from the Community Climate System Model and climate records preserved in ice cores, exposed coral reefs, fossilized pollen and the chemical makeup of shells to determine the accuracy of the computer simulation.

But the latest research into sulphur - producing algae, ancient ice cores, and sea sediments from the North Atlantic region could help climatologists

Based on dating of radioactive elements measured by scientists at the Swiss research center ETH Zurich, the ice at the base of the core may be at least 600,000 years old.

In 1959, the U.S. Army Corps of Engineers built the subterranean city under the guise of conducting polar research — and scientists there did drill the first ice core ever used to study climate.

Lead author of the research Dr Kelly Redeker from the Department of Biology at the University of York said «As microbial activity and its influence on its local environment has never been taken into account when looking at ice - core gas samples it could provide a moderate source of error in climate history interpretations.

Such fellowships have enabled Antarctic scientists to participate in a range of significant research including using ice cores to determine proxies for the Southern Annular Mode, a molecular study of Antarctic ostracods, and investigating particulate carbon and biogenic silica in sea ice in both the Arctic and Antarctic regions.

Predicted age - depth scales for Siple Dome and Inland WAIS ice cores in West Antarctica, Geophysical Research Letters, 23, 22, 3163 — 3166

The drilling of cores in the Greenland and Antarctic ice - caps had by now become an important branch of research into the climate of the past.

Holocene accumulation and ice flow near the West Antarctic Ice Sheet Divide ice - core site, Journal of Geophysical Research: Earth Surface, 121, p. 1 - ice flow near the West Antarctic Ice Sheet Divide ice - core site, Journal of Geophysical Research: Earth Surface, 121, p. 1 - Ice Sheet Divide ice - core site, Journal of Geophysical Research: Earth Surface, 121, p. 1 - ice - core site, Journal of Geophysical Research: Earth Surface, 121, p. 1 - 18.

Previous research by Box using ice cores — long cylinders drilled out of the ice sheet that let scientists sample hundreds of years of ice layers — showed that in the past, snowfall has increased over the ice sheet as temperatures have risen.

Changes in atmospheric carbonyl sulfide over the last 54,000 years inferred from measurements in Antarctic ice cores, Journal of Geophysical Research: Atmospheres, 121, p. 1943 - 1954.

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Most of the previous medalists are a good deal more senior than Mike Mann, and include paleoceanographer Laurent Labeyrie, limnologist Francoise Gasse, ice core pioneers Dominique Raynaud and Sigfus Johnsen and number of other major names in the climate and paleoclimate research, including RC's own Ray Bradley.

This was based on research by Baillie and McAneney (2015) which compared the spacing between frost ring events (physical scarring of living growth rings by prolonged sub-zero temperatures) in the bristlecone pine tree ring chronology, and spacing between prominent acids in a suite of ice cores from both Greenland and Antarctica.

Last month, in an excellent piece of research (Sigl et al., 2015) by a collaboration including Earth scientists, dendrochonologists, and historians, the chronology of the Greenland North Eemian Ice Drilling core (NEEM) has been reassessed and re-dated, confirming that such an offset does indeed exist in the GICC05 timescale below AD 1000.

Dr. Zbigniew Jaworowski — world - renowned expert on the ancient ice cores used in climate research — says the U.N. «based its global - warming hypothesis on arbitrary assumptions and these assumptions, it is now clear, are false.»

Now, on the thresholds business, you should be aware that I'm probably more conservative on this than most in the paleoclimate research community, especially those (like Alley, and me) that have worked mostly on ice cores, looking at longer timescales.

Over the last 35 years, our research team has recovered ice - core records of climatic and environmental variations from the polar regions and from low - latitude high - elevation ice fields from 16 countries.

As I'm researching this more I'm also finding information on how the term «before present» in the papers related to the GISP2 ice core.

Now, Hubertus Fischer of the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, Germany, and colleagues have measured carbon isotope ratios in methane from the whole of the last glacial - interglacial transition (between 20,000 and 10,000 years before present) by analysing ice - cores.

Collecting ice cores north of Lulea, Sweden to measure the concentration of microplastics and compare with the research results in Canada.

The multinational European Project for Ice Coring in Antarctica (EPICA) lasted from January 1996 until December 2006, earning the European Union's 2008 Descartes Prize for Research.

My role at the meeting was mainly to hold up his one chart (of the Vostok ice core record, that then unfolded to the much higher projected CO2 levels — a chart the USGCRP [U.S. Global Change Research Office] office that I led at the time had helped the OSTP [White House Office of Science and Technology Policy] to get made for him).

The graph resulted from research by climatologists Michael Mann, Raymond Bradley, and Malcolm Hughes that used multiple proxies, including tree rings, coral, ice cores, sediments, and historical records.

A research scientist at Ohio State's Byrd Polar Research Center, Mosley - Thompson collects ice cores from the ice sheets of Antarctica and Greenland, while colleague Lonnie Thompson, a professor of geological sciences at Ohio State, collects cores from the mountainous ice fields of China and South research scientist at Ohio State's Byrd Polar Research Center, Mosley - Thompson collects ice cores from the ice sheets of Antarctica and Greenland, while colleague Lonnie Thompson, a professor of geological sciences at Ohio State, collects cores from the mountainous ice fields of China and South Research Center, Mosley - Thompson collects ice cores from the ice sheets of Antarctica and Greenland, while colleague Lonnie Thompson, a professor of geological sciences at Ohio State, collects cores from the mountainous ice fields of China and South America.

DRI - led research team publishes longest ice core black carbon record to date Reno, NV (Thursday, August 10, 2017): Smoky skies and burnt landscapes are the easily... Read more

Collaborative Research: Analysis of McCall Glacier Ice Core and Related Modern Process Studies

This project brings together senior scientists from the Desert Research Institute, the University of Colorado, the University of Southern Mississippi, the University Libre de Brussels, and the University of Alaska Fairbanks to tackle these problems as a team to create transformative new approaches to analyzing ice cores from polythermal valley glaciers to create unique records of value to a broad - base of scientists and policy makers.