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| 速度方位显示× | 双偏振雷达× | |
|---|---|---|
| 领域 | 气象学 | 气象学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1968 | 1990s |
| 提出者≠ | Browning and Wexler | Bringi, Chandrasekar |
| 类型≠ | Radar wind retrieval method | Radar measurement technique |
| 开创性文献≠ | Browning, K. A., & Wexler, R. (1968). The determination of kinematic properties of a wind field using Doppler radar. Journal of Applied Meteorology, 7(1), 105-113. DOI ↗ | Kumjian, M. R. (2013). The impact of precipitation on supercell electrification: Lightning potential and storm structure changes. Journal of the Atmospheric Sciences, 69(11), 3353-3375. link ↗ |
| 别名≠ | VAD, VAD analysis, Velocity-height profile | Dual-pol radar, Polarimetric radar, Dual-polarization, Dual-pol |
| 相关 | 3 | 3 |
| 摘要≠ | The Velocity-Azimuth Display (VAD) is a radar analysis technique that extracts the radial velocity of wind at a constant altitude as a function of azimuth angle around the radar. By fitting a sinusoidal pattern to these measurements, VAD retrieves the mean wind speed and direction at that altitude, providing wind profiles without requiring multiple radar observations. | Dual-polarization (dual-pol) radar is a weather radar system that transmits and receives electromagnetic waves in both horizontal and vertical polarizations simultaneously. This technique, operational in weather services since the 2010s, provides detailed information about precipitation particle type, shape, and size distribution, enabling improved rainfall estimates and better discrimination of hail, rain, and snow. |
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