page_title: WAIS Divide
section_title: Results
hierarchical_section_title: WAIS Divide / Ice core project / Results
caption_attribution_description: English: Camp at the WAIS Divide Site &#91;1&#93;
context_page_description: The WAIS Divide is the ice flow divide on the West Antarctic Ice Sheet which is a linear boundary that separates the region where the ice flows to the Ross Sea, from the region where the ice flows to the Weddell Sea. It is similar to a continental hydrographic divide.
context_section_description: The core was dated using two methods. The top was dated by counting annual layers to an age of 31,200 years ago. The bottom was dated using stratigraphic methods to an age of 67,748, years at the bottom of the core. The dating was more accurate than other Antarctic ice cores and enables a better understanding of the causes of previous climate changes. This information helps improve predictions of future climate changes.
  The project developed information on:
  The origins of the abrupt climate changes that occurred during the last ice age.
  The role of variations in the earth's orbit on climate.
  The natural variations in atmospheric carbon dioxide and the influence of ocean circulation on these variations.
  The natural variations in atmospheric methane and the role of tropical wet lands and ice sheets on these variations.
  Paleoceanography will publish a special edition that includes all WAIS Divide related AGU publications as April 2016.
  Additional information, including a complete list of all the publications related to the project, is available at: http://waisdivide.unh.edu.
caption: Camp at the WAIS Divide Site
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