On the line parameters for the X1Σg+ (1-0) infrared quadrupolar transitions of 14N2

Re-examination of the 14N2X1Σg+ (1-0) line parameters in the HITRAN database showed that the vibration-rotation interaction effect on the line intensities has been neglected, and that the halfwidths are not compatible with experimental and theoretical studies. New line parameters have been generated, which improve the consistency and accuracy in individual N2 line retrievals from atmospheric spectra. Unresolved line shape issues require further studies.