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Indonesian climate shift linked to glacial cycle

By Guest PostApril 14, 2014Environmentbrown university, carbon isotopes, climate change, climate history, digital model, dim coumou, earth, elena schroeter, global climate system, hadrosaur, indo-pacific, jascha lehmann, klima simulation, look like, molecular paleontologist, persona, sturmaktivitaet, tim cleland, warm pool

Indonesian waters are major agents for global levels of atmospheric water vapor. A prolonged dry spell in Indonesia thousands of years ago has been found to correlate with ice ages in the northern hemisphere. Brown researchers have compiled a detailed Indonesian climate record of the last 60,000 years, tracking telltale indicators in sedimentary cores: titanium levels (a marker for surface water runoff) and the carbon isotopes of leaf wax, a marker for plant varieties (grasses indicate dry conditions).

PROVIDENCE, R.I. [Brown University] — Using sediments from a remote lake, researchers from Brown University have assembled a 60,000-year record of rainfall in central Indonesia. The analysis reveals important new details about the climate history of a region that wields a substantial influence on the global climate as a whole. (more…)

Climate Dialogue

By Guest PostNovember 19, 2012Environmentabrupt, adam rome, cleaner environment, climate authority, climate change, climate condition, climate dialogue, climate history, climate pattern, david w titley, earth future, earth past, environmental, environmental historian, future, geoscientist, greenland, ice core, indicator, mitchell hall, national security, pennsylvania state university, prediction, public awareness, rear admiral, richard alley, university of delaware

Renowned geoscientist Richard Alley shares climate history, predictions

About the video: Ice sheet expert Richard Alley told a UD audience about the past and future of Earth’s changing climate when he spoke as part of the DENIN Dialogue Lecture Series.

Richard Alley, Evan Pugh Professor of Geosciences at Pennsylvania State University, appeared at the University of Delaware’s Mitchell Hall on Nov. 8 to discuss his breakthrough findings about abrupt climate changes in Earth’s past and the implications of his research for Earth’s future. (more…)

Ice Cores Yield Rich History of Climate Change

By Guest PostFebruary 4, 2011EnvironmentAntarctica, atmosphere, borehole, carbon dioxide, climate history, climate record, concentration of greenhouse gases, core, coring, earth, gases, human activity, ice, ice core, isotopic composition, julie palais, kendrick taylor, krypton, logging, russia, sample, temperature of the ocean, vostok station, wais, west antarctic ice sheet divide, xenon

*Research project completes drilling for the year, reaching two miles below West Antarctic Ice Sheet*

On Friday, Jan. 28 in Antarctica, a research team investigating the last 100,000 years of Earth’s climate history reached an important milestone completing the main ice core to a depth of 3,331 meters (10,928 feet) at West Antarctic Ice Sheet Divide (WAIS). The project will be completed over the next two years with some additional coring and borehole logging to obtain additional information and samples of the ice for the study of the climate record contained in the core.

As part of the project, begun six years ago, the team, funded by the National Science Foundation (NSF), has been drilling deep into the ice at the WAIS Divide site and recovering and analyzing ice cores for clues about how changes in the concentration of greenhouse gases in the atmosphere have influenced the Earth’s climate over time. (more…)

Tag Archives: climate history

Indonesian climate shift linked to glacial cycle

Climate Dialogue

Ice Cores Yield Rich History of Climate Change