3D view of the synthetic spectra as function of the altitude for E_mean = 7 keV and a total flux of 10 erg · cm⁻² · s⁻¹. The maximum volume emission rates shown are of 500 cm⁻³ · s⁻¹ · nm⁻¹ to allow a better visualization of the faint lines/bands. The computed maximum of the green line for this case is 2116 cm⁻³ · s⁻¹ · nm⁻¹. Note that the mean energy used here is larger than for the previous examples to allow a better discrimination of the altitude of each emission peak.