Potential analysis reveals changing number of climate states during the last 60 kyr

  title={Potential analysis reveals changing number of climate states during the last 60 kyr},
  author={Valerie N. Livina and Timothy M. Lenton},
We develop and apply a new statistical method of potential analysis for detecting the number of states of a geophysical system, from its recorded time series. Estimation of the degree of a polynomial potential allows us to derive the number of potential wells in a system. The method correctly detects changes in the number of wells in artificial data. In ice-core proxy records of Greenland paleotemperature, a reduction in the number of climate states from two to one is detected sometime prior to… CONTINUE READING
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