Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link
To compensate radar reflectivity for attenuation effect, a new method for attenuation correction of the radar reflectivity using arbitrary oriented microwave link (referred henceforth to as ACML) is developed and evaluated. Referring to the measurement of arbitrary oriented microwave link, the ACML...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2017/6124149 |
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| author | Peng Zhang Xichuan Liu Zhaoming Li Zeming Zhou Kun Song Pinglv Yang |
| author_facet | Peng Zhang Xichuan Liu Zhaoming Li Zeming Zhou Kun Song Pinglv Yang |
| author_sort | Peng Zhang |
| collection | DOAJ |
| description | To compensate radar reflectivity for attenuation effect, a new method for attenuation correction of the radar reflectivity using arbitrary oriented microwave link (referred henceforth to as ACML) is developed and evaluated. Referring to the measurement of arbitrary oriented microwave link, the ACML method optimizes the ratio of specific attenuation to specific differential phase which is a key parameter in attenuation correction schemes. The proposed method was evaluated using real data of a dual-polarization X-band radar and measurements of two microwave links during two rainstorm events. The results showed that the variation range of the optimized ratio was overall consistent with the results of the previous studies. After attenuation correction with the optimal ratios, the radar reflectivity was significantly compensated, especially at long distances. The corrected reflectivity was more intense than the reflectivity corrected by the “self-consistent” (SC) method and closer to the reflectivity of a nearby S-band radar. The effectiveness of the method was also verified by comparing the rain rates estimated by the X-band radar with those derived by rain gauges. It is demonstrated that arbitrary oriented microwave link can be adopted to optimize the attenuation correction of radar reflectivity. |
| format | Article |
| id | doaj-art-1037531b3ebf4c939477a20f856bdb64 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-1037531b3ebf4c939477a20f856bdb642025-02-03T01:32:33ZengWileyAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/61241496124149Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave LinkPeng Zhang0Xichuan Liu1Zhaoming Li2Zeming Zhou3Kun Song4Pinglv Yang5Army Engineering University of PLA, Nanjing 210007, ChinaCollege of Meteorology and Oceanology, National University of Defense Technology, Nanjing 211101, ChinaLAGEO, Institute of Atmospheric Physics, UCAS, Beijing 100029, ChinaCollege of Meteorology and Oceanology, National University of Defense Technology, Nanjing 211101, ChinaCollege of Meteorology and Oceanology, National University of Defense Technology, Nanjing 211101, ChinaCollege of Meteorology and Oceanology, National University of Defense Technology, Nanjing 211101, ChinaTo compensate radar reflectivity for attenuation effect, a new method for attenuation correction of the radar reflectivity using arbitrary oriented microwave link (referred henceforth to as ACML) is developed and evaluated. Referring to the measurement of arbitrary oriented microwave link, the ACML method optimizes the ratio of specific attenuation to specific differential phase which is a key parameter in attenuation correction schemes. The proposed method was evaluated using real data of a dual-polarization X-band radar and measurements of two microwave links during two rainstorm events. The results showed that the variation range of the optimized ratio was overall consistent with the results of the previous studies. After attenuation correction with the optimal ratios, the radar reflectivity was significantly compensated, especially at long distances. The corrected reflectivity was more intense than the reflectivity corrected by the “self-consistent” (SC) method and closer to the reflectivity of a nearby S-band radar. The effectiveness of the method was also verified by comparing the rain rates estimated by the X-band radar with those derived by rain gauges. It is demonstrated that arbitrary oriented microwave link can be adopted to optimize the attenuation correction of radar reflectivity.http://dx.doi.org/10.1155/2017/6124149 |
| spellingShingle | Peng Zhang Xichuan Liu Zhaoming Li Zeming Zhou Kun Song Pinglv Yang Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link Advances in Meteorology |
| title | Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link |
| title_full | Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link |
| title_fullStr | Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link |
| title_full_unstemmed | Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link |
| title_short | Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link |
| title_sort | attenuation correction of weather radar reflectivity with arbitrary oriented microwave link |
| url | http://dx.doi.org/10.1155/2017/6124149 |
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