Ice core - Wikipedia, the free encyclopedia
An ice core is a core sample from the accumulation of snow and ice over many years that have re-crystallized and have trapped air bubbles from previous time periods. The composition of these ice cor...
en.wikipedia.org/wiki/Ice_core
Home site for the U.S. National Ice Core Laboratory at the U.S. Geological Survey in Denver, Colorado, USA. ... WHY STUDY ICE CORES? ... Why Study Ice Cores...
nicl.usgs.gov/
A discussion of the methods for determining the ages of ancient ice cores. Ice cores found in Antarctica contain over 160,000 annual layers, presenting somewhat of a problem for young-earth creationists and catastrophists. ... I. Methods of Dating Ice Cores A. Counting of Annual Layers 1. Temperature Dependent 2.
www.talkorigins.org/faqs/icecores.html www.talkorigins.org/faqs/icecores.html
Ice cores, cylinders of ice drilled out of glaciers and polar ice sheets, have played an important role in revealing what we know so far about the history of climate. ... How Ice Cores Record a History of Climate...
www.gisp2.sr.unh.edu/GISP2/MoreInfo/Ice_Cores_Past.html www.gisp2.sr.unh.edu/GISP2/MoreInfo/Ice_Cores_Past.html
NOAA Paleoclimatology Paleolimnology Data ... Data from polar and low latitude mountain glaciers and ice caps are archived. Proxy climate indicators include oxygen isotopes, methane concentrations, dust content, and other parameters. Download Trieste 2008 Workshop Report on Ice Cores...
www.ncdc.noaa.gov/paleo/icecore.html www.ncdc.noaa.gov/paleo/icecore.html
The World's Ice Cores; ... List compiled by the International Ice Core Data Cooperative. Click on highlighted sites to download data from the Ice Core Gateway. ... Sea Ice Cores...
www.ncdc.noaa.gov/paleo/icecore/current.html www.ncdc.noaa.gov/paleo/icecore/current.html
Indeed, fallout from the Chernobyl nuclear accident has turned up in ice cores, as has dust from violent desert storms countless millennia ago. Collectively, these frozen archives give scientists unprecedented views of global climate over the eons.
www.pbs.org/wgbh/nova/warnings/stories/
Current information about climate and the environment. ... The ice cores can provide an annual record of temperature, precipitation, atmospheric composition, volcanic activity, and wind patterns. In a general sense, the thickness of each annual layer tells how much snow accumulated at that location during the year.
earthobservatory.nasa.gov/Features/Paleoclimatology_Ice... earthobservatory.nasa.gov/Features/Paleoclimatology_IceCores/
"That is the wonderful thing about ice cores," said Professor McManus. "There is air from three-quarters of a million years ago and it is still locked in these bubbles - it's incredible." ... Antarctic cores reveal ice history ; 18 Oct 01 | Science/Nature...
news.bbc.co.uk/2/hi/science/nature/3792209.stm
Ice cores from Greenland and Antarctica give a glimpse of the dramatic variations of climate that occurred on our way into and out of past ice ages. Even better, from these frozen climate records we can determine the levels of atmospheric greenhouse gases while temperatures changed.
www.nature.com/nature/focus/icecores/ www.nature.com/nature/focus/icecores/