Logarithmic Mean Size - 1st moment

Description

Calculates the logarithmic mean size (moments method) of the particles’ size distribution of a soil, in phi scale

Related formulas

Variables

X_ϕLogarirmic Mean Size (1st moment) (ϕ)
fiCumulative weight percent of the i- particle size grade present (dimensionless)
m_ϕMid-point of the i- particle size grade present (ϕ)