ON THE DELAY OF THE ADDITIONAL MORTALITY LINKED TO THE GEOMAGNETIC DISTURBANCES

Abstract

The geomagnetic disturbances, mainly geomagnetic storms (GMSs), but also low frequency resonances, touch some people susceptible to cerebrovascular diseases (CVDs). Sometimes the geomagnetic effect is overestimating speculatively. Against this concept we compare the changes of geomagnetic indexes (GMIs) with the changes of additional mortality rate (AMR). We compare by means of cross-correlation functions (CCFs) and use the Wolf number (WN) as referent time scale. We suspect that strong GMSs, like these in 2003, increase the relative common MR 3–4 years later with up to 4×10-5. Otherwise, the typical GMS linked AMR seems to be less than 10-5. Even if these values are overestimated, generally they are small. Analyzing data about Bulgaria and 5 its regions for the last solar cycles, we confirm that the lag of the maxima of the GMS linked ANR behind the WN maxima is ~5 years. We confirm also that the lag of the GMSs maxima behind the WN maximum is 1–2 years. Especially, we found that the lag of the maxima of the CVD linked AMR behind the maxima of the GMSs is 3–4 years. So, we consider the 5 years lag of the AMR linked to the GMSs behind the WN maximum appears a sum of two above mentioned delays, 1–2 years and 3–4 years. In principle, the typical duration of CVDs may be derived if the beginnings are known. In the medicine they are usually unknown. However, suspecting the GMSs as triggers of a part of the CWD linked AMR, we should suppose that these CWDs finish with lethal outcome after 3–4 years.