Articles tagged with Doppler Radar
Researchers estimate 100 trillion insects fly in US skies daily, with stability over past decade but regional fluctuations. Winter temperatures significantly impact insect populations, which may hide species sensitive to environmental change.
Researchers estimated that around 100 trillion insects fly above the US every day using weather radar data. Insect populations remained relatively stable over the past decade, but regional fluctuations were observed, with warmer temperatures leading to declines in insect density.
The new system uses radar and reflective surfaces to monitor driver movements and determine their state of alertness. It has the advantage of being simple and cost-effective compared to conventional camera-based systems.
Researchers have created smart road signs that use built-in Doppler radar, video, and acoustic radar devices to monitor traffic and conditions. The signs display dynamically updated recommended speeds and alert drivers in real time to hazards ahead.
Researchers at Penn State used a real-time convection-permitting hurricane analysis and forecasting system to accurately predict Hurricane Sandy's path, intensity, and rainfall. The system compared favorably to operational global models, showcasing its potential for improving storm prediction.
A new wideband ring voltage-controlled oscillator (VCO) was proposed by UNIST undergraduate student Seyeon Yoo, enabling stable operation of IR-UWB-based Doppler radar systems. The VCO's digital tuning allows for scalable frequency control within a 2-8 GHz band.
A low-pressure system stretching over the Caribbean Sea is causing heavy rainfall and flooding in various islands. The GOES-13 satellite captured an image of System 94L on June 9, revealing a minimum central pressure of 1001 millibars and cloud cover centered over eastern Cuba and Jamaica.
University of Florida engineering researchers have built a prototype baby monitor that uses Doppler radar to remotely scan the in-and-out movement of a baby's chest due to respiration. The system can detect when a baby stops breathing and sends an alarm to a portable unit kept by parents.
The National Hurricane Center will implement a new technique, VORTRAC, to continually monitor landfalling storms in the United States. VORTRAC uses existing coastal Doppler radars to provide details on hurricane winds and central pressure every six minutes.
A new technique called VORTRAC will provide a detailed 3D view of hurricane winds every six minutes, allowing forecasters to determine the storm's strength as it approaches land. This will enable rapid alerts for coastal communities if the hurricane suddenly intensifies or weakens.
The Rapid-Scan DOW radar promises a complete picture of tornado evolution by detailing critical steps in tornado behavior, thanks to its 5- to 10-second resolution and close range. The radar's analysis will help produce better warnings and provide insights into the distribution of features across many types of tornadoes.
A partnership between Navy and National Severe Storms Laboratory aims to improve weather forecasting by integrating SPY-1 radar with existing Doppler technology. The new phased array radar can provide faster updates of weather features, allowing for more detailed scans and increased lead time before tornadoes strike.