Fig. 5
From: The Amerigo Vespucci as a traveling laboratory for studying the cosmic-ray fluxes at sea level
Vertical cutoff rigidity evaluated from the IGRF geomagnetic field model at the epoch 2024.9 on a \(1^\circ \times 1^\circ\) world grid. The dashed black line shows the route of the Vespucci vessel from Darwin to Trieste. The map was generated using the Matplotlib Basemap toolkit14 version 1.4.0 (https://matplotlib.org/basemap/1.4.0/users/index.html).
