Sunday, March 25, 2012

DVN RADAR UPGRADE TO DUAL-POL RADAR


Horizontal Polarization Graph

The electric field is oriented horizontally, along the x-axis (blue). The magnetic field is oriented vertically along the y-axis (white).

Vertical Polarization GraphThe electric field is oriented vertically, along the y-axis (orange). The magnetic field is oriented horizontally along the x-axis (white).
Traditional NWS Radar Dual-Polarimetric Radar
WSR-88D Dual Pol Radar
The current WSR-88D transmits radio waves oriented in a horizontal fashion. The dual-pol radar will transmit radio waves oriented both horizonally and vertically.
HERE ARE SOME BENEFITS OF THE DUAL-POL RADAR UPGRADE-
  • Polarimetric radar can significantly improve the accuracy of the estimates of amounts of precipitation
  • Polarimetric radar can tell the difference between very heavy rain and hail, which will improve flash flood watches and warnings
  • Polarimetric radar can identify types of precipitation in winter weather forecasts, improving forecasts of liquid water equivalent or snow depth
  • Polarimetric radar data is more accurate than conventional radar, saving the forecasters the step of having to verify radar data
  • Increased confidence in polarimetric radar data can contribute to increased lead time in flash flood and winter weather hazard warnings.

No comments:

Post a Comment