This data set represents the model results plotted in the figures in Bett et al. (2020). Data portrays Amundsen Sea freshwater fluxes and freshwater passive tracer results, along with the results on the effect of grounded icebergs and iceberg melt on sea ice and oceanic heat content. These results are derived from Amundsen Sea regional model simulations over the period 1979-2018, with the first 10 years regarded as model spin up. For full descriptions of the results plotted in each figure see Bett et al. (2020).

This dataset contains daily positions of the A68 family of giant icebergs during their drift through the Scotia Sea and South Atlantic between 2020-09-01 and 2021-04-16. Positions were obtained using optical imagery collected by MODIS Aqua and Terra satellites. For the parent iceberg A68A, the evolving dimensions (long and short axis length, area) are also provided, based on Synthetic Aperture Radar imagery acquired by Copernicus Sentinel 1A and 1B satellites. This data can be used to plot the trajectories of the A68 icebergs during their drift in the Scotia Sea and near South Georgia. This data was collected during an MSc/MRes student project at the Department of Geography, University of Sheffield, in 2020/21. The work was not supported by any funding or research grants.

The data set contains information on the position, and occasionally dimensions, of giant Antarctic iceberg B31 over the period from its calving in November 2013, until July 2015. This used a range of satellite sensors, both visible and microwave. The columns are: year (A), date in Julian day of that year (B), area of B31, in km2 (C), major axis of B31, in km (D), minor axis of B31, in km (E), perimeter of B31, in km (F), latitude and longitude, in degrees from the Greenwich Meridian (G & H) and satellite source of data (I). NERC grant reference(s): NE/L010054/1 and NE/M007820/1