READ ME File For 'Dataset for Fine Scale Dynamics of Fragmented Aurora-Like
Emission'

Dataset DOI: 10.5258/SOTON/D1928

ReadMe Author: Daniel Whiter, University of Southampton

This dataset supports the publication:
AUTHORS: Whiter, D. K., H. Dahlgren, B. S. Lanchester, J. Dreyer, N. Partamies,
N. Ivchenko, M. Zaccaria Di Fraia, R. Oliver, A. Serpell-Stevens, T. Shaw-Diaz,
and T. Braunersreuther
TITLE: Fine Scale Dynamics of Fragmented Aurora-Like Emission
JOURNAL: Annales Geophysicae
DOI: 10.5194/angeo-2020-95 (preprint version)

This dataset contains:

Auroral Structure and Kinetics (ASK) data for
Whiter et al. (2021), Ann. Geophys., doi:10.5194/angeo-2020-95

ZIP file contains images in PNG format. The two sections of the images are:
Left: ASK1, N2 1P, 673.0 nm
Right: ASK3, OI, 777.4 nm

The image file name is the date and frame number. Two events are included:
2013/12/04, frame rate 32 Hz, first frame 24250 (19:04:06.781 UT)
2014/12/22, frame rate 20 Hz, first frame 1601 (06:27:06.000 UT)

The field of view is 6.2 deg x 6.2 deg, and the centre of each image is
pointed at local magnetic zenith, 81.6 deg elevation and 184.2 deg east of
north. The pixel scale is 0.0244 deg/pixel. The field of view is identical
for each of the cameras. Accurate geometric calibration can be performed
using stars.

The location of the instrument is 78.15N, 16.03E, at the EISCAT Svalbard
Radar site, close to Longyearbyen, Svalbard, Norway.

The cameras themselves are Andor iXon EMCCD cameras, with a sensor of
512 x 512 pixels which are binned down to 256 x 256 pixels.

Note that the raw 16-bit image data have been scaled to 8-bit for conversion to
PNG format. This can result in artificial saturation of the PNG images.

For a full description of the ASK instrument see e.g.
Dahlgren, et al. (2008), Ann. Geophys., doi:10.5194/angeo-26-1041-2008.

Date of data collection: 2013/12/04 and 2014/12/22

Information about geographic location of data collection:
EISCAT Svalbard Radar, Svalbard, Norway, 78.15 deg N, 16.03 deg E.

Licence: CC-BY-SA

Related projects:
How does the aurora heat the upper atmosphere?, NERC IRF, NE/S015167/1

Date that the file was created: August, 2021