Function geopotential_from_geometric_m 

pub fn geopotential_from_geometric_m(
    geometric_m: f64,
) -> Result<f64, AtmosError>

Geopotential altitude H (m′) from geometric altitude Z (m), eq. 18, with the standard’s constant g₀ and effective radius r₀. Heights at or below −r₀ have no geopotential.

Errors

AtmosError::Domain if geometric_m is not finite or not above −r₀.