Icebreaker dates and ice edge distance in McMurdo Sound, Antarctica from austral years 1956/1957 to 2014/2015 (McMurdo Predator Prey project)

Abstract

The icebreaker channel from the fast ice edge to McMurdo Station has been created each year since 1956, with the location of the channel remaining consistent, by and large, over the entire period. Dates of the icebreaker arrival at the fast ice edge and/or at McMurdo Station since 1957 were acquired from scientist and icebreaker logbooks and contractor records (DACSUSAP2012-13; pers. comm. P. McGillivary USCG), along with the distance, which was measured by radar from the fast ice edge to McMurdo Station on the date that the icebreaker began breaking fast ice. For a complete list of measurements, refer to the supplemental document 'Field_names.pdf', and a full dataset description is included in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: http://www.bco-dmo.org/dataset/674992