Table 2 Settings for Runs 1-4. Other settings are shown in Table 1. The ambient wind is set to be vertically uniform. The relationship \(\mu =\mu (\dot{M})\) (Eq. 18) is used to set the value of \(\mu\) for Runs 1,3,4 (see The estimation of μ section in detail). The boldface means different values from Run 1

From: A physics-based source model for real-time tephra-dispersal forecasting for weak eruption plumes