READ ME File For Dataset for 'Multi-scale observations of two polar cap arcs occuring on different magnetic field topologies' Dataset DOI: 10.5258/SOTON/D1270 Read Me Author: Daniel Whiter, University of Southampton, UK, based on template by University of Southampton library. This dataset supports the publication: Reidy, J. A., R. C. Fear, D. K. Whiter, B. S. Lanchester, A. J. Kavanagh, D. J. Price, J. M. Chadney, Y. Zhang, and L. J. Paxton Multi-scale observation of two polar cap arcs occurring on different magnetic field topologies J. Geophys. Res. 2020 This dataset contains: Imaging observations by Auroral Structure & Kinetics (ASK) of small scale aurora, and coincident spectra recorded by the High-Throughput Imaging Echelle Spectrograph (HiTIES) The files are as follows: ask1vidClosed.avi - Video from ASK1 camera imaging N2 1PG at 673.0 nm, starting 18:48:41.950UT on 2016/02/04. Frame rate is 20 Hz, total duration is 22 seconds. ask3vidClosed.avi - Video from ASK3 camera imaging OI at 777.4 nm, starting 18:48:41.950UT on 2016/02/04. Frame rate is 20 Hz, total duration is 22 seconds. ask1vidOpen.avi - Video from ASK1 camera imaging N2 1PG at 673.0 nm, starting 18:35:04.000UT on 2015/12/15. Frame rate is 20 Hz, total duration is 50 seconds. ask3vidOpen.avi - Video from ASK3 camera imaging OI at 777.4 nm, starting 18:35:04.000UT on 2015/12/15. Frame rate is 20 Hz, total duration is 50 seconds. hities_pca_spectrum_20151215.csv - HiTIES integrated spectrum recorded during the "open" event on 2015/12/15. See the file header for integration period. hities_pca_spectrum_20160204.csv - HiTIES integrated spectrum recorded during the "closed" event on 2016/02/04. See the file header for integration period. Licence: CC BY-NC-SA Date of data collection: 15 December 2015 (open) and 4 February 2016 (closed). Information about geographic location of data collection: EISCAT Svalbard Radar (ASK) and Kjell Henriksen Observatory (HiTIES), Longyearbyen, Svalbard