Unit:
Τομέας Αστροφυσικής, Αστρονομίας και ΜηχανικήςLibrary of the School of Science
Author:
Παπαηλιού Μαρία - Χριστίνα
Dissertation committee:
Ελένη Χριστοπούλου - Μαυρομιχαλάκη Καθηγήτρια (Επιβλέπουσα), Ξενοφών Μουσάς Καθηγητής, Παναγιώτα Πρέκα - Παπαδήμα Επίκουρη Καθηγήτρια
Original Title:
Προειδοποιήσεις γεωμαγνητικών διαταραχών και ανθρώπινες φυσιολογικές παράμετροι
Translated title:
Precursors of geomagnetic disturbances and human physiological parameters
Summary:
In this thesis a great amount of Forbush decreases were examined, as registered
by the neutron monitor stations from the beginning of their operation until
today (1957 – 2012). From these events 185 Forbush decreases, which are
connected with precursors (pre-increases and/or pre-decreases of the cosmic ray
intensity), were examined. These events were classified for the first time into
groups according to three criteria, the criterion of anisotropy, the criterion
of western solar sources accompanied with geomagnetic storms and the criterion
of strong Forbush decreases. Solar, interplanetary and geomagnetic data from
the Forbush decreases database of IZMIRAN Institute of the Russian Academy of
Sciences and Cosmic Ray Group of the University of Athens were used for the
analysis of each event. Moreover, by using hourly cosmic ray intensity data
from 31 Neutron Monitor stations from the Neutron Monitor Network and applying
the ‘Ring of Stations’ method the asymptotic longitudinal cosmic ray
distribution diagrams were plotted. Results reveal clear signs of precursors in
a satisfactory number of events. Furthermore, geomagnetic activity and cosmic
ray intensity variations were statistically analyzed in relation to variations
of human physiological parameters (heart rate, arterial blood pressure, RR
interval).
Keywords:
Cosmic ray intensity, Forbush decreases, Precursors, Space weather, Human physiology
Number of references:
214
