Discovery Metadata System

Southern Hemisphere winter sea ice concentration simulated by HadCM3 to best explain the early last interglacial Antarctic isotope peak
GB/NERC/BAS/PDC/01084

Summary

Abstract:
The file contains Southern Hemisphere winter (September) sea ice concentration (sic) from a simulation performed using the isotope-enabled HadCM3 climate model forced with early last interglacial boundary conditions, centred approximately 128,000 years ago. The resulting sic represents a reduction in winter sea ice area of approximately 54% relative to pre-industrial and is proposed as the best explanation for the Antarctic ice core data from 128,000 years ago. The spatial pattern of sea ice retreat was determined using a large ensemble of model experiments and a pattern search optimization approach to match the last interglacial ice core isotope peak. Further details can be found in the published manuscript (https://doi.org/10.1002/2017GL074594).

This work was funded by NERC grants NE/P009271/1, NE/P013279/1, and NE/K004514/1.

Keywords:
Antarctic, Ice core, Isotope, Last interglacial, Southern Hemisphere sea ice

Access Data

GET DATA

Basic Information