This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions:

1. To cite both the data and literature reference in any publication as follows:

DATA REFERENCE

Jordan, T., Corr, H. & Robinson, C. "Aeromagnetic survey across the Brunt Ice Shelf, 2017" (2018) Polar Data Centre, Natural Environment Research Council, UK Research & Innovation, UK

doi:10.5285/410ee2f9-2d22-4155-aaed-43b93a7c3d62

LITERATURE REFERENCE

Jordan and Becker 2018 In prep.

2. The user recognizes the limitations of data. Use of the data is at the users'' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data.

This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions:

1. To cite both the data and literature reference in any publication as follows:

DATA REFERENCE

Jordan, T., Corr, H. & Robinson, C. "Aeromagnetic survey across the Brunt Ice Shelf, 2017" (2018) Polar Data Centre, Natural Environment Research Council, UK Research & Innovation, UK

doi:10.5285/410ee2f9-2d22-4155-aaed-43b93a7c3d62

LITERATURE REFERENCE

Jordan and Becker 2018 In prep.

2. The user recognizes the limitations of data. Use of the data is at the users'' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data.

The standard deviation of the crossover error of the final statistically levelled dataset was 8.21 nT for 313 intersections, after removing 9 anomalously high (>30 nT) crossover values.

Resolution: The line spacing for the main survey area is 5km, with regional lines spaced ~18 km apart. The provided data is sampled at 1Hz, which equates to a 60m along track sample spacing.