| dc.description.abstract | A method for preprocessing and analysing a few select fields in airglow intensity
images from an all-sky imager was developed and utilized. Waves
detected with a three-field analysis were compared with those waves visually
detected in the images to evaluate the option of replacing or supplementing
expensive imager systems with lower cost three-field photometers. The smallfield
analysis developed and utilized in this work yields accurate estimates of
wave period, given data with a sufficienty high sampling frequency. The quality
of wavelength and propagation direction estimates depends strongly on
the field configuration, but overall, these wave parameters are estimated with
less accuracy than the period. By comparison, event analyses are well suited
for deriving the wavelength of short-period waves, but the periods are more
uncertain. The method of analysis developed in this work demonstrates that
the utilization of small-field observation systems like photometer-systems or
telescopes, when optimized, has great potential to supplement and extend
imager observations. | |
