VLF data in this folder have been used in the analysis of the effect of the August 21, 2017 total solar eclipse on the phase of VLF/LF signals
A. Rozhnoi, M. Solovieva, S. Shalimov, D. Ouzounov, P. Gallagher, G.Verth, J. McCauley, S. Shelyag & V. Fedun (v.fedun@sheffield.ac.uk)

Name of the file corresponds to the transmitter used i.e. NAU, NML NPM.