Speaker
Dr
Zbigniew Kobylinski
(Polish Air Force Academy)
Description
Many time series of neutron component data are collected in World Data Centers from the fifties of XX century to nowadays. It is very important to believe that those data are typified as stabilized and generally of good quality.
In the paper the correctness of the pressure corrected data of individual neutron monitor (NM) stations is examined on the monthly to yearly time scale separately for the periods of different heliospheric magnetic field polarity from 1958 to 2014. Taking no account some short time details as GLE events, one can expect a similar NM intensity response at every station with a similar cut-off rigidity and with similar asymptotic directions to the solar variability on a long time scale. It could be reflected by similar values of the Pearson correlation coefficients and slopes of regression lines between the smoothed solar activity indices and NM data registered at different stations. The solar activity is described by Ottawa/Penticon radio flux. If the correlation coefficient considerably wanders away from the mean value for the determined epoch the data registered at such station should not be used to a further study of long-term variations.
Modern and powerful wavelet technique with establishing of the significance levels and confidence intervals for the resultant power spectra can also be applied to test in time frequency space the existing data of the world wide network.
Some examples of hourly and daily data corrected for the long period cut off drift with GLE increases excluded are presented.
| Registration number following "ICRC2015-I/" | 999 |
|---|---|
| Collaboration | -- not specified -- |
Author
Dr
Zbigniew Kobylinski
(Polish Air Force Academy)
Co-authors
Dr
Arkadiusz Wysokinski
(independent researcher)
Mr
Tomasz Seredyn
(Polish Air Force Academy)
