Open AccessAuroraWatch UK: An Automated Aurora Alert System
Author(s) -
Case N. A.,
Marple S. R.,
Honary F.,
Wild J. A.,
Billett D. D.,
Grocott A.
Publication year - 2017
Publication title -
earth and space science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.843
H-Index - 23
ISSN - 2333-5084
DOI - 10.1002/2017ea000328
Subject(s) - magnetometer , disturbance (geology) , earth's magnetic field , visibility , quiet , ionosphere , remote sensing , data set , service (business) , geophysics , meteorology , geodesy , computer science , environmental science , magnetic field , geology , physics , astronomy , artificial intelligence , business , paleontology , quantum mechanics , marketing
The AuroraWatch UK aurora alert service uses a network of magnetometers from across the United Kingdom to measure the disturbance in the Earth's magnetic field caused by the aurora borealis (northern lights). The service has been measuring disturbances in the Earth's magnetic field from the UK and issuing auroral visibility alerts to its subscribers, since September 2000. These alerts have four levels, corresponding to the magnitude of disturbance measured, which indicate from where in the UK an auroral display might be seen. In the following, we describe the AuroraWatch UK system in detail and reprocess the historical magnetometer data using the current alert algorithm to compile an activity database. This data set is composed of over 150,000 h (99.94% data availability) of magnetic disturbance measurements, including nearly 9,000 h of enhanced geomagnetic activity.