As compared to CLIMAP:
Better geographic coverage
Better temporal definition
- 19,000 to 23,000 years BP (after EPILOG)
- CLIMAP: 16,000 to 26,000 years BP
Combines results of six proxies
- Four based on microfossil species composition (planktonic foraminifera, diatoms, dinoflagellates and radiolaria)
- Two geochemical (alkenones with 37 C atoms produced by unicellular algae/coccolithophores – in slightly different composition in relation to changes in temperature, magnesium and calcium found planktic foraminiferal shells)
- More statistically robust
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