Document Type
Article
Publication Date
6-18-2024
Department
Department of Physics
Abstract
A THz radar, with its wide bandwidth, is capable of high-resolution imaging down to the centimeter scale. In this study, a THz radar is applied to detect hydrometeors generated in a spray chamber. The observed backscattering signals show fluctuations at centimeter scales, indicating various hydrometeor distribution patterns along the radar beam. A co-located High-Speed Imaging (HSI) sensor is used to measure the Drop Size Distributions (DSD) in the spray chamber. The radar sampling beam is well aligned with the HSI probes, allowing an objective comparison between the remote sensing and in situ observations. In this study, the observed radar power is compared with the power estimated from the HSI measurements. Results show great consistency, with power difference smaller than 0.5 dB. This study demonstrates the feasibility and great potential of using a THz radar for ultra-high-resolution observations of clouds in a laboratory facility, and in the real atmosphere.
Publication Title
Geophysical Research Letters
Recommended Citation
Zhu, Z.,
Yang, F.,
Luke, E.,
Rosky, E.,
Lamer, K.,
&
Kollias, P.
(2024).
THz Radar Observations of Hydrometeors in a Spray Chamber.
Geophysical Research Letters,
51(12).
http://doi.org/10.1029/2024GL109627
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p2/819
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Version
Publisher's PDF
Publisher's Statement
© 2024. The Author(s). Publisher’s version of record: https://doi.org/10.1029/2024GL109627