Development of a Polarimetric 50-GHz Spectrometer for Temperature Sounding in the Middle Atmosphere

Krochin, Witali; Stober, Gunter; Murk, Axel (2022). Development of a Polarimetric 50-GHz Spectrometer for Temperature Sounding in the Middle Atmosphere. IEEE journal of selected topics in applied earth observations and remote sensing, 15, pp. 5644-5651. IEEE 10.1109/JSTARS.2022.3186796

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This article addresses the further development of the ground-based temperature radiometer TEMPERA, which measures atmospheric microwave radiation in one linear polarization in order to retrieve temperature profiles up to an altitude of 50 km (Stähli et al. , 2013). The latest innovation is a new polarimetric receiver, which allows observing the atmosphere simultaneously in left- and right-circular polarization. In combination with an adapted inversion method, the fully polarimetric analysis can improve the accuracy and extends the vertical upper limit of retrieved temperature profiles. Comparisons between single polarization and fully polarimetric retrievals with simulated atmospheric spectra are presented, and the influence of the Earth’s magnetic field is analyzed. In addition, we propose a simple calibration method for fully polarimetric radiometers and present first atmospheric spectra measured with the new TEMPERA-C instrument.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics
08 Faculty of Science > Institute of Applied Physics > Microwaves

UniBE Contributor:

Krochin, Witali, Stober, Gunter, Murk, Axel

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 620 Engineering
000 Computer science, knowledge & systems
500 Science > 530 Physics

ISSN:

1939-1404

Publisher:

IEEE

Language:

English

Submitter:

Simone Corry

Date Deposited:

11 Sep 2023 07:59

Last Modified:

11 Sep 2023 08:08

Publisher DOI:

10.1109/JSTARS.2022.3186796

BORIS DOI:

10.48350/186172

URI:

https://boris.unibe.ch/id/eprint/186172

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