Articles | Volume 19, issue 4
https://doi.org/10.5194/amt-19-1573-2026
https://doi.org/10.5194/amt-19-1573-2026
Research article
 | 
03 Mar 2026
Research article |  | 03 Mar 2026

Intercomparison of seven collocated ground-based infrared spectrometer radiance observations and retrieved thermodynamic profiles

David D. Turner, Bianca Adler, Laura Bianco, James M. Wilczak, Vincent Michaud-Belleau, and Luc Rochette

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Cited articles

Adler, B., Wilczak, J. M., Bianco, L., Baiteau, L., Cox, C. J., de Boer, G., Djalalova, I. V., Gallagher, M. R., Intrieri, J. M., Meyers, T. P., Myers, T. A., Olson, J. B., Pezoa, S., Sedlar, J., Smith, E. N., Turner, D. D., and White, A. B.: Impact of seasonal snow-cover change on the observed and simulated state of the atmospheric boundary layer in a high-altitude mountain valley, J. Geophys. Res., 128, e2023JD038497, https://doi.org/10.1029/2023JD038497, 2023. 
Adler, B., Turner, D. D., Bianco, L., Djalalova, I. V., Myers, T., and Wilczak, J. M.: Improving solution availability and temporal consistency of an optimal-estimation physical retrieval for ground-based thermodynamic boundary layer profiling, Atmos. Meas. Tech., 17, 6603–6624, https://doi.org/10.5194/amt-17-6603-2024, 2024. 
Adler, B., Bianco, L., Turner, D. D., Olson, J. B., Sun, X., Gebauer, J., Bodini, N., Letizia, S., and Wilczak, J. M.: Multi-season evaluation of temperature and wind in the marine boundary layer along the United States northeast coast in the High-Resolution Rapid Refresh model, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2026-97, 2026. 
Bianco, L., Adler, B., Bariteau, L., Djalalova, I. V., Myers, T., Pezoa, S., Turner, D. D., and Wilczak, J. M.: Sensitivity of thermodynamic profiles retrieved from ground-based microwave and infrared observations to additional input data from active remote sensing instruments and numerical weather prediction models, Atmos. Meas. Tech., 17, 3933–3948, https://doi.org/10.5194/amt-17-3933-2024, 2024. 
Blumberg, W. G., Wagner, T. J., Turner, D. D., and Correia Jr., J.: Quantifying the accuracy and uncertainty of diurnal thermodynamic profiles and convection indices derived from the Atmospheric Emitted Radiance Interferometer, J. Appl. Meteorol. Clim., 56, 2747–2766, https://doi.org/10.1175/JAMC-D-17-0036.1, 2017. 
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Short summary
It is critical that a network of ground-based instruments that measure temperature and humidity profiles be well calibrated, so that differences between any two profiles can be attributed to atmospheric differences and not instrument calibration issues. This study evaluated the relative accuracy of 7 ground-based infrared spectrometers and their ability to measure these profiles, and found that the profile bias was much smaller than the uncertainty in the retrieved profiles themselves.
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