Articles | Volume 19, issue 21
https://doi.org/10.5194/amt-19-6939-2026
https://doi.org/10.5194/amt-19-6939-2026
Research article
 | 
02 Nov 2026
Research article |  | 02 Nov 2026

Improving simulations of Zeeman absorption spectrum for hyperspectral microwave sounding applications

Changjiao Dong, Fuzhong Weng, and Emma Turner

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Cited articles

Aires, F., Prigent, C., Orlandi, E., Milz, M., Eriksson, P., Crewell, S., Lin, C. C., and Kangas, V.: Microwave hyperspectral measurements for temperature and humidity atmospheric profiling from satellite: The clear-sky case, J. Geophys. Res.-Atmos., 120, 11334–11351, https://doi.org/10.1002/2015JD023331, 2015. 
Ben-Reuven, A. and Lightman, A.: Impact Broadening of the Oxygen Microwave Spectrum, J. Chem. Phys., 46, 2429–2430, https://doi.org/10.1063/1.1841051, 1967. 
Bi, Y., Yang, J., Wei, C., Dou, F., Xu, W., An, D., Luan, Y., Feng, J., and Zhang, L.: Atmospheric Temperature Measurements Using Microwave Hyper-Spectrum from Geostationary Satellite: Band Design, Weighting Functions and Information Content, Remote Sens., 16, 289, https://doi.org/10.3390/rs16020289, 2024. 
Blackwell, W. J., Bickmeier, L. J., Leslie, R. V., Pieper, M. L., Samra, J. E., Surussavadee, C., and Upham, C. A.: Hyperspectral Microwave Atmospheric Sounding, IEEE T. Geosci. Remote, 49, 128–142, https://doi.org/10.1109/TGRS.2010.2052260, 2011. 
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Short summary
Temperature observations in the upper atmosphere are sparse. Improved simulations of microwave radiance from oxygen, accounting for the Zeeman effect, guide channel design for a proposed hyperspectral microwave atmospheric sounder. Retrieval tests using simulated radiances showed slightly more accurate temperature profiles than those obtained using an existing sounder's channels. The design could provide richer temperature information with finer vertical resolution in the upper atmosphere.
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