방법 비교

	Velocity-Azimuth Display	열풍	WRF 모델
분야	기상학	기상학	기상학
계열	Process / pipeline	Process / pipeline	Process / pipeline
기원 연도	1968	1920s	2000
창시자	Browning and Wexler	Jacobbian insights from geostrophic flow	Skamarock and Klemp
유형	Radar wind retrieval method	Wind-temperature relationship	Atmospheric simulation system
원전	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.	Holton, J. R. (2004). An Introduction to Dynamic Meteorology (4th ed.). Academic Press.	Skamarock, W. C., Klemp, J. B., Dudhia, J., et al. (2008). A Description of the Advanced Research WRF Version 3. NCAR Technical Note NCAR/TN-475+STR.
별칭	VAD, VAD analysis, Velocity-height profile	Thermal wind, Vertical wind shear, Barotropic	Weather Research and Forecasting, WRF, ARW, NMM
관련	3	3	4
요약	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.	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.	The Weather Research and Forecasting (WRF) model is a mesoscale atmospheric simulation system used for weather forecasting, research, and climate applications. Developed cooperatively by NCAR, NOAA, and academic institutions, WRF became operational in 2004 and has become one of the most widely used atmospheric models worldwide.