tagged w/ ice core
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When you look at the ice core record, there’s a significant amount of correlation between sea level rise and the amount of carbon dioxide (CO2) in the air at the time. But the ice core record goes back less than a million years. A study published a couple of weeks ago in the journal Science measured proxy data for CO2 concentration in the ocean and compared that data to other data on the stability of ice sheets. The authors discovered that there is strong correlation between the two going back at least 20 million years.
One of the challenges that the authors had was the fact that few available previous studies didn’t show correlation between the amount of CO2 in the air and the global climate prior to the start of ice core data. The authors hypothesized that this was a problem with the other datasets and developed a set of tests to check their hypothesis.
More at the linkWhen you look at the ice core record, there’s a significant amount of... more
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An international team of climate scientists, working on the NEEM research project, has just completed their first season toward drilling a 1.6-mile deep vertical core of solid ice in Greenland, looking for clues about ancient and future climates. In July of 2009, Dr. Heidi Cullen traveled to Greenland with a production team from StormCenter Communications to visit the team, and discuss their findings.An international team of climate scientists, working on the NEEM research project, has... more
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The Air Force National Guard is a vital part of climate research in the far north of Greenland. Dr. Heidi Cullen, with a production team from StormCenter Communications, met with the pilots of the 109th Airlift Wing to talk about what it’s like to fly in extreme weather conditions, and their dangerous job – getting people and equipment into Greenland's harsh interior and back.The Air Force National Guard is a vital part of climate research in the far north of... more
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In July of 2009, Climate Central senior research scientist Heidi Cullen traveled to Greenland with a production team from StormCenter Communications to visit the North Greenland Eemian Ice Drilling Project, or NEEM. Scientists from 14 nations gather together each summer in northern Greenland, where they work to drill a core of solid ice, looking into the past for clues to future climate change.In July of 2009, Climate Central senior research scientist Heidi Cullen traveled to... more
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When modern climatologists want temperature data farther back in time than the first globally-distributed temperature measurements, they have to use a proxy that, when calibrated properly, indirectly measures temperature.
A new study in the journal Nature corrects a previously uncorrected error in the Greenland ice sheet temperature proxy and, at the same time, determines that the Greenland ice sheet responds to temperature increases more than previously believed.
More at the link.When modern climatologists want temperature data farther back in time than the first... more
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This 20 minute video explains how ice cores and climate models are used to predict future climate. No warm and fuzzies, just the science. Travel with a scientist from his field site in Antarctica where ancient ice is collected, to the labs where measurements are made to determine how greenhouse gases change climate, to the computer facilities used to predict future climate.This 20 minute video explains how ice cores and climate models are used to predict... more
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