High-resolution Fourier transform measurements of line strengths in the 002-000 main isotopologue band of nitrous oxide.

Nitrous oxide (NO) is a key greenhouse gas and a major ozone-depleting anthropogenic pollutant monitored by the total carbon column observing network (TCCON) in the 002-000-band of its main isotopologue. Here, we present highly accurate line strengths for this window determined using Fourier transform infrared spectroscopy with pressure, temperature, and optical path length being metrologically traceable to the SI. The obtained results agree with previous studies within the given uncertainties.