The scientific products included in the database are calculated by Dr Christos Katsavrias and Mrs Afroditi Nasi (Project Scientists - PS) under the supervision of Prof Ioannis A. Daglis (Project Manager - PM) at the National and Kapodistrian University of Athens (NKUA).

The ULFwave power spectral density database constitutes of daily CDF files, which include 1-min resolution of the following products:

1) Epoch time
2) L* (calculated using the Olson-Pfitzer quiet model)
4) Magnetic Local Time (MLT)
5) Frequency
6) Power Spectral Density (PSD) of the parallel magnetic field as a function of frequency
9) Power Spectral Density (PSD) of the azimuthal electric field as a function of frequency

The radial diffusion coefficients database constitutes of daily CDF files, which include 1-hour resolution MLT-averaged DLL grouped in L* bins with dL*=0.1:

1) Epoch time
2) Mu values (first adiabatic invariant)
3) L* (calculated using the Olson-Pfitzer quiet model)
4) DLLE
5) DLLB as a function of Mu

The NKUA team acknowledges the THEMIS/FXG and EFI teams for the use of the corresponding datasets which can be found online in http://themis.ssl.berkeley.edu/data_products/index.php and the developers of the International Radiation Belt Environment Modeling (IRBEM) library that was used to calculate the L* and MLT values via the Olson–Pfitzer quiet model.

For more details concerning the creation of the database and its scientific products please refer to Katsavrias et al. (2021), The "SafeSpace" Radial Diffusion Coefficients Database: Dependencies and application to simulations, Annales Geophysicae, doi: 10.5194/angeo-2021-56.

The WaveletPSD_calc Matlab code is created in the frame of the "SafeSpace" project (European Union’s Horizon 2020 research and innovation programme under grant agreement No 870437) by Constantinos Papadimitriou MSc and Dr Christos Katsavrias at the National and Kapodistrian University of Athens.

The zip folder includes:

1) One test signal (compressional component of the geomagnetic field from THEMIS A fluxgate magnetometer).
2) The Matlab functions: wavelet, wave_bases and wave_signif from Torrence and Compo, 1998.
3) WaveletPSD function created by Constantinos Papadimitriou. The basic concept behind the creation of the code is described in Katsavrias et al. 2022.
4) WaveletPSD_calc.m which is a demo code.

Users who have used the code in their publication should:

1) include in the Data Availability Statement or the Acknowledgments section the url of the code: https://synergasia.uoa.gr/modules/document/?course=PHYS120

2) acknowledge the SafeSpace project including the corresponding grant agreement No 870437

3) refer to and cite the following article:
Katsavrias, C., Papadimitriou, C., Hillaris, A. and Balasis, G. (2022): Application of wavelet methods in the investigation of geospace disturbances: A review and an evaluation of the approach for quantifying wavelet power, Atmosphere, doi: