Spectral analysis of the Colle Gnifetti glacier, Swiss-Italian Alps, Natural Tritium record

Jupyter notebook for the spectral analysis of the Colle Gnifetti glacier (N 45.9297, E7.8769, WGS84) Tritium (3H) record, submitted to the Journal of Geophysical Research: Atmospheres with the title "Solar Cycle Detected in Natural Tritium of Ice layers before the Nuclear Era".