The nature of the storm activity in the northwest Atlantic during the Holocene and its possible connection with variations in the Earth’s magnetic field

Abstract

Abstract The data on the concentration of ions in the core of the Greenland Ice Sheet Project 2 (GISP2) were analysed to find the cause of storm activity in the north-west Atlantic during the Holocene. It was shown that there is cyclical transfer of ionic components with a period of ∼ 2700 years due to changes in storm activity. As a possible cause of storm changes, secular variations in the position of the geomagnetic pole over the past several thousand years have been considered. In particular, the periodicity of fluctuations in the longitude of the north geomagnetic pole was compared with the frequency of intensification of storm activity. It has been demonstrated that the spectra of these variations are similar, from which it is concluded that secular variations in the magnetic field are the basis of the processes that determine the variability of storm activity and climate in the north-west Atlantic during the Holocene.