WEPAPIS 70 (Western Pacific paleointensity-stacking for the last 70 ka)

Abstract

Earth's magnetic field comprises dipoles and non-dipole components. In some cases, the non-dipole magnetic fields can be detected only in certain areas. Some changes in the magnetic field might occur and be recorded only in certain regions, so it is necessary to make relative paleointensity stacking for regions to observe events that may not be recorded in other regions. To find out about these changes in the Western Pacific, a record called WEPAPIS-70 (Western Pacific Paleointensity Stacking for the Last 70 ka) was made by stacking the paleointensity record from twelve marine and lake cores. WEPAPIS-70 is comparable to other global and regional paleointensity models but shows features that are possibly specific to the Western Pacific region. WEPAPIS-70 identifies the Tianchi excursion that was not recorded in the western hemisphere. WEPAPIS-70 also identifies short-lived events, such as the Rockall excursion.