UCLA

This repository contains the resonstructions of the monthly Antarctic sea ice extent anomaly in total and by sector (‘Total’, ‘King Haakon VII’, ‘Ross Sea’, ‘East Antarctica’, ‘Weddell Sea’, ‘Bellingshausen Amundsen Sea’) for the 20th Century. We provide an ensemble of 2500 reconstructions. The methodology used to create these reconstructions is in the paper: ‘A Bayesian Model for 20th Century Antarctic Sea Ice Extent Reconstruction’ by Thomas J. Maierhofer, Marilyn N. Raphael, Ryan L. Fogt, and Mark S. Handcock. It appears in Earth and Space Science, 11, 10 (2024). For each sector we provide one CSV file. The rows in these data sets correspond the reconstructed month, e.g. reconstructions for January 1950 are found in row ’t1950_1’ and the columns correspond to the 2500 reconstructions. The numbers of the reconstructions correspond to one another across sectors, such that the 1st ‘Total’ reconstruction is the sum of the 1st reconstruction in all sectors.