方法对比

	速度方位显示	双偏振雷达	热成风
领域	气象学	气象学	气象学
方法族	Process / pipeline	Process / pipeline	Process / pipeline
起源年份	1968	1990s	1920s
提出者	Browning and Wexler	Bringi, Chandrasekar	Jacobbian insights from geostrophic flow
类型	Radar wind retrieval method	Radar measurement technique	Wind-temperature relationship
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.	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.	Holton, J. R. (2004). An Introduction to Dynamic Meteorology (4th ed.). Academic Press.
别名	VAD, VAD analysis, Velocity-height profile	Dual-pol radar, Polarimetric radar, Dual-polarization, Dual-pol	Thermal wind, Vertical wind shear, Barotropic
相关	3	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.	The thermal wind relationship is a fundamental meteorological principle that links vertical wind shear to horizontal temperature gradients. It states that wind speed increases with height in the direction of warming—a direct consequence of hydrostatic and geostrophic balance combined with the ideal gas law.