Volume Coverage Patterns (VCP) | National Oceanic and …
Aug 15, 2023 · The default precipitation VCP is either VCP 12 or 212. We’ll discuss the difference between them later, but VCP 12 or 212 provides forecasters with 14 elevation scans in around 4 ½ minutes. This scanning strategy is best for rapidly developing thunderstorms and severe weather detection.
The new General Surveillance VCP 215 incorporates the best attributes of VCPs 12/212, VCP 11/211 and VCP 21/212 into a single VCP. This new General Surveillance VCP 215 provides the forecaster with a better alternative than using VCPs 11, 21, 211 or 221.
NEXRAD - Wikipedia
With one SAILS cut active on VCP 212, base scans occur about once every two and a half minutes, with more frequent updates if AVSET terminates the volume scan early.
During that time, hard-coded Volume Coverage Patterns (VCPs) have been the only option for operators when choosing a volumetric scanning strategy. This constraint was due to the hardware limitations of the system.
RPS List Decision Aid - VCP 11, 12, 211, & 212
Overview. In theory, you would be using VCP 12/212 and 11/211 for similar situations: convective events. In practice, VCPs 12/212 will normally be your go-to during convective weather because of its better sampling of the lower-levels of the atmosphere.
vcp - Embry–Riddle Aeronautical University
A Volume Coverage Pattern or VCP is a set of instructions that controls various aspects of NEXRAD antenna functioning including the rotation rate, Pulse Repetition Frequency (PRF), pulse duration, and the elevation angles, to maximize the information-gathering for …
The Volume Coverage Pattern (VCP), the operational mode in use, and the use of three different dynamic scanning strategy applications determine the antenna angles used to collect data.
Next Generation Weather Radar (NEXRAD) | National Centers for ...
Aug 21, 2024 · This VCP scans the same elevation angles as VCP 12 and 212 below 10 degrees, the same angles as VCP 11 above 10 degrees, and like VCP 212 it employs the Sachidananda-Zrnic Algorithm as VCP 212 on the lowest elevations.
2-Dimensional Velocity Dealiasing Algorithm (VDEAL) Uses least-squares approach to dealias velocity discontinuities simultaneously on a full velocity field. Develops its own wind profile. Develops a coarse (sub-sampled) global solution and then resolves discontinuities in …
WSR-88D Radar Upgrade - National Weather Service
Sep 28, 2024 · Our new default for lighter precipitation or "clear air" situations will be VCP 35, and our new default for standard precipitation events will be VCP 215. We will still primarily rely on VCP 212 for severe/convective situations.