Knowledge Bank

High-resolution near infrared $4000-9000cm-1$ spectra of carbon dioxide have been recorded using the McMath-Pierce Fourier transform spectrometer at the Kitt Peak National Solar Observatory. Spectroscopic constants have been determined for 53 different vibrational states of the $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O12C16O$ isotopologue, including 8 vibrational states for which laboratory spectra have not previously been reported. Calibration using the 2-0 band of CO near $4200cm-1$ and the $(\nu 1+\nu 3)$ combination band of $C2H2$ near $6500cm-1$ provides absolute line position accuracies of $2\times 10-5cm-1$ (RMS) for strong, isolated transitions throughout the observed range. Fits with RMS errors less than $3.8\times 10-5cm-1$ have been obtained for the $20013\leftarrow 00001,20012\leftarrow 00001$, and $20011\leftarrow 00001$ bands and RMS errors less than $6\times 10-5cm-1$ have been obtained for the $30014\leftarrow 00001,30013\leftarrow 00001,30012\leftarrow 00001$, and $00031\leftarrow 00001$ bands. The new line list satisfies the line position accuracies required for the next generation of $CO2$ remote sensing instruments, improves the capability of solarviewing spectrometers to retrieve precise column $CO2$ measurements, and provides a secondary frequency standard in the $NIR.a$