Contrasting the complexity of the climate of the past 122,000 years and recent 2000 years

The complexity of the climate of the past 122;000 years and recent 2000 years was investigated by analyzing the δ 18 O records of ice cores based on the sample entropy (SampEn) method and Lempel-Ziv (LZ) complexity. In using SampEn method, the climate complexity is measured by the sample entropy, which is a modified approximate entropy defined in terms of… CONTINUE READING