British Antarctic Survey&#8217;s Aerogeophysics Data: Releasing 25 Years of Gravity, Magnetics, and Radar Datasets over Antarctica&#160;
Authors: Fremand Alice , Bodart Julien , Jordan Tom , Ferraccioli Fausto , Robinson Carl , Corr Hugh , Peat Helen , Bingham Robert , Vaughan David 
Published: March 2022

&lt;p&gt;Over the past&amp;#160;50 years, the British Antarctic Survey&amp;#160;(BAS)&amp;#160;has been one of the major&amp;#160;acquisitors&amp;#160;of airborne&amp;#160;geophysical&amp;#160;data over Antarctica,&amp;#160;providing&amp;#160;scientists with&amp;#160;gravity, magnetics and radar&amp;#160;datasets&amp;#160;that have been&amp;#160;central to&amp;#160;many studies&amp;#160;of&amp;#160;the&amp;#160;past, present, and future&amp;#160;evolution&amp;#160;of&amp;#160;the&amp;#160;Antarctic&amp;#160;Ice&amp;#160;Sheet.&amp;#160;Until&amp;#160;recently,&amp;#160;many of&amp;#160;these&amp;#160;datasets were unpublished&amp;#160;in full,&amp;#160;restricting the further usage of the data&amp;#160;for&amp;#160;different glaciological and geophysical applications. Starting in 2020,&amp;#160;scientists and data managers at the British Antarctic Survey have&amp;#160;worked&amp;#160;on&amp;#160;standardising and releasing large swaths of&amp;#160;aerogeophysical&amp;#160;data&amp;#160;acquired&amp;#160;during the period 1994-2020, including a&amp;#160;total of&amp;#160;64&amp;#160;datasets from 24&amp;#160;different&amp;#160;surveys,&amp;#160;amounting&amp;#160;to&amp;#160;~450,000 line-km&amp;#160;(or 5.3 million km&lt;span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;/span&gt;&lt;span&gt;)&amp;#160;of data&amp;#160;across West&amp;#160;Antarctica,&amp;#160;East Antarctica, and&amp;#160;the&amp;#160;Antarctic Peninsula.&amp;#160;Amongst these are the extensive surveys over the fast-changing&amp;#160;Pine Island (2004-05) and Thwaites (2018-20)&amp;#160;glacier catchments amongst others. Considerable effort has been made to&amp;#160;standardise these datasets to comply with the FAIR (Findable, Accessible, Interoperable and Re-Usable)&amp;#160;data&amp;#160;principles, as well as&amp;#160;to create&amp;#160;a&amp;#160;new Polar Airborne&amp;#160;Geophysics&amp;#160;Data Portal&amp;#160;(&lt;/span&gt;https://www.bas.ac.uk/project/nagdp/),&amp;#160;which&amp;#160;serves&amp;#160;as a user-friendly interface to&amp;#160;interact&amp;#160;and&amp;#160;download the&amp;#160;newly published&amp;#160;data.&amp;#160;Here, we&amp;#160;review&amp;#160;how&amp;#160;these datasets&amp;#160;were acquired and processed,&amp;#160;and&amp;#160;present the methods used to standardise&amp;#160;them. We&amp;#160;then&amp;#160;discuss&amp;#160;the&amp;#160;new&amp;#160;data portal infrastructure and&amp;#160;interactive tutorials that were created to improve the accessibility of the data. We believe that this&amp;#160;newly released&amp;#160;data&amp;#160;will be&amp;#160;a valuable asset&amp;#160;to future geophysical and glaciological studies over&amp;#160;Antarctica and&amp;#160;extend&amp;#160;significantly&amp;#160;the&amp;#160;life cycle&amp;#160;of the data.&amp;#160;All datasets&amp;#160;included in this data release&amp;#160;are&amp;#160;now fully&amp;#160;accessible&amp;#160;at the UK Polar Data Centre, now certified by the CoreTrustSeal:&amp;#160;&lt;span&gt;https://data.bas.ac.uk&lt;/span&gt;.&amp;#160;&lt;/p&gt;