![]() ![]() However, phased array radar is expected to cost billions of dollars to implement, and with dual-polarization recently launched, it's unlikely to occur until well into the next decade. A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. Instead of the 2-6 minutes each scan takes now in the Doppler radar system, phased array will be able to scan the same area in under a minute. And meteorologists aren’t stopping with Doppler radar: new technologies like phased array radar will improve detection, and also dramatically increase scan times. Webpage offers radar scans more frequently and with 4 times greater detail. What’s Next for Weather RadarĪs we’ve said already, radars have revolutionized weather forecasting, especially when it comes to severe weather. Track active weather with NOAA’s new radar viewer. This interactive map provides a visual representation of wind speed and direction over the next 24 hours. This is called a “debris ball,” and it's a telltale sign on a dual-pol radar of a tornado on the ground. See the latest United States Doppler radar weather map including areas of rain, snow and ice. The image on the right is called correlation coefficient, and the small circular blue area indicates an area of clear air encircled by objects detected in the air (the green color) and similarly shaped raindrops (shown in red). This view combines radar station products into a single layer called a mosaic and storm based alerts. Before dual-polarization, we’d only have the velocity data on the left, which would allow us to suspect a tornado on the ground, but not confirm it without a ground spotter. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |