An empirical line list for methane near 1µm (9028–10,435cm−1)

The highly congested absorption spectrum of methane near 1 µm was recorded by Fourier Transform Spectroscopy at room temperature. The detectivity threshold of the recordings corresponds to an intensity cut off on the order of 2×10−26 cm/molecule. An empirical line list is constructed for the 9028–10,435 cm−1 spectral region. It consists of (i) 7212 lines in the 9520–10,435 cm−1 interval corresponding to the tetracontad and (ii) 574 lines in the 9028–9200 cm−1 interval corresponding to the high energy region of the triacontad, dominated by the 3ν3 band near 9046 cm−1. The first line list fills an important gap in the HITRAN database. The obtained data set constitutes a solid basis for future rovibrational assignments on the basis of advanced theoretical methods.