Rain Attenuation Correction of Reflectivity for X-Band Dual-Polarization Radar
| Autor: | Guang Wen, Liang Feng, Hui Xiao, Qi Tang, Li Zongfei, Yanan Liu, Yue Sun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Convection
Atmospheric Science 010504 meteorology & atmospheric sciences reflectivity attenuation correction for rain 0211 other engineering and technologies X band 02 engineering and technology lcsh:QC851-999 Environmental Science (miscellaneous) 01 natural sciences law.invention high-resolution slide self-consistency correction method Optics law X-band dual-polarization radar Radar Physics::Atmospheric and Oceanic Physics 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing Physics business.industry Reflectivity dBZ Convective cloud lcsh:Meteorology. Climatology Weather radar business Correction for attenuation |
| Zdroj: | Atmosphere; Volume 7; Issue 12; Pages: 164 Atmosphere, Vol 7, Iss 12, p 164 (2016) |
| ISSN: | 2073-4433 |
| DOI: | 10.3390/atmos7120164 |
| Popis: | In order to improve the performance of X-band dual-polarization radars, it is necessary to conduct attenuation correction before using the X-band radar data. This study analyzes a variety of attenuation correction methods for the X-band radar reflectivity, and proposes a high-resolution slide self-consistency correction (SSCC) method, which is an improvement of Kim et al.’s method based on Bringi et al.’s original method. The new method is comprehensively evaluated with the observational data of convective cloud, stratiform cloud, and the stratiform cloud with embedded convection. Comparing with the intrinsic reflectivity at X-band calculated from the reflectivity at S-band, it is found that the new method can effectively reduce the correction errors when calculating differential propagation shift increments using the conventional self-consistency attenuation correction method. This method can efficiently correct the X-band dual-polarization radar reflectivity, in particular, for the echoes with reflectivity greater than 35 dBZ. |
| Databáze: | OpenAIRE |
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