24-26 September 2020
Lima, Perú
America/Lima timezone
Share our event through the following link: https://indico.uni.edu.pe/e/Meeting-of-Physics-2020

Analysis of radon time series by means of continuous wavelet transform

26 Sep 2020, 12:00
Lima, Perú

Lima, Perú

Centro de Investigación de la Facultad de Ciencias Universidad Nacional de Ingeniería
poster Nuclear and Particles Poster session


Prof. Ricardo Flores Camargo (Pontificia universidad católica del Perú (PUCP))


The abnormal radon exhalation from the earth crust, as a precursory phenomenon related to seismic events, is an important research topic [1, 2]. The radon exhalation is related to the variability of local meteorological parameters. In the present study, a continuous RTM 2200 / SARAD monitor was used to measure the time series of radon concentration in the soil and meteorological parameters. These measurements were made in 4 wells at EMHU-PUCP for two weeks with 15-minute cycles. The nature of these temporal variations was characterized by means of continuous wavelet transformation (CWT) [3], performing a spectral analysis in the time-frequency domain. Also, a correlation analysis was performed between the different time series. An analysis is made of the potential influence of ambient temperature on radon concentration measurements.

Keywords: Time series; wavelet transform; Radon.


[1] Donner, R. V., Potirakis, S. M., Barbosa, S. M., Matos, J. A., Pereira, A. J., & Neves, L. J. (2015). Intrinsic vs. spurious long-range memory in high-frequency records of environmental radioactivity. The European Physical Journal Special Topics, 224(4), 741-762.

[2] Barbosa, S. M., Zafrir, H., Malik, U., & Piatibratova, O. (2010). Multiyear to daily radon variability from continuous monitoring at the Amram tunnel, southern Israel. Geophysical Journal International, 182(2), 829-842.

[3] Siino, M., Scudero, S., Cannelli, V., Piersanti, A., & D’Alessandro, A. (2019). Multiple seasonality in soil radon time series. Scientific reports, 9(1), 1-13.

Primary author

Prof. Ricardo Flores Camargo (Pontificia universidad católica del Perú (PUCP))


Mr César J. Guevara Pillaca (Pontificia Universidad Católica del Perú (PUCP)) Dr María Elena López Herrera (Pontificia universidad católica del Perú (PUCP)) Prof. Patrizia Pereyra Anaya (Pontificia universidad católica del Perú (PUCP)) Dr Daniel Palacios Fernández (Pontificia universidad católica del Perú (PUCP))

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