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Raindrop Size Distribution Retrieval Using Joint Dual-Frequency and Dual-Polarization Microwave Links
Joint Authors
Liu, Xi-chuan
Gao, Tai-chang
He, Binsheng
Song, Kun
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-02
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Estimation of raindrop size distribution (DSD) is essential in many meteorological and hydrologic fields.
This paper proposes a method for retrieving path-averaged DSD parameters using joint dual-frequency and dual-polarization microwave links of the telecommunication system.
Detailed analyses of the rain-induced attenuation calculation are performed based on the T-matrix method.
A forward model is established for describing the relation between the DSD and the rain-induced attenuation.
Then, the method is proposed to retrieve propagation path DSD parameters based on Levenberg–Marquardt optimization algorithm.
The numerical simulation for path-averaged DSD retrieval shows that the RMSEs of three gamma DSD parameters are 0.34 mm−1, 0.81, and 3.21×103 m−3·mm−1, respectively, in rainfall intensity above 30 mm/h.
Meanwhile, the method can retrieve the rainfall intensity without the influence of variational DSD.
Theoretical analyses and numerical simulations confirm that the method for retrieving path-averaged DSD parameters is promising.
The method can complement existing DSD monitoring systems such as the disdrometer and provide high-resolution rainfall measurements with widely distributed microwave links without additional cost.
American Psychological Association (APA)
Song, Kun& Liu, Xi-chuan& Gao, Tai-chang& He, Binsheng. 2019. Raindrop Size Distribution Retrieval Using Joint Dual-Frequency and Dual-Polarization Microwave Links. Advances in Meteorology،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1118742
Modern Language Association (MLA)
Song, Kun…[et al.]. Raindrop Size Distribution Retrieval Using Joint Dual-Frequency and Dual-Polarization Microwave Links. Advances in Meteorology No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1118742
American Medical Association (AMA)
Song, Kun& Liu, Xi-chuan& Gao, Tai-chang& He, Binsheng. Raindrop Size Distribution Retrieval Using Joint Dual-Frequency and Dual-Polarization Microwave Links. Advances in Meteorology. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1118742
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118742