An Unfolding Algorithm for Profiler Winds

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  • 1 Forecast Systems Laboratory, Boulder, Colorado
  • | 2 Wave Propagation Laboratory, Boulder, Colorado
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Abstract

The National Oceanic and Atmospheric Administration has completed the installation of a 30-site demonstration network of wind-profiling radars in the central United States. The network is being used to demonstrate and assess the utility of wind profiler technology in a quasi-operational environment and to help define operational requirements for possible future national networks.

This paper reviews the cause of velocity folding and presents the unfolding method recently implemented for the NOAA Wind Profiler Demonstration Network. The method uses a simple median cheek to dealias (unfold) radial velocities quickly and effectively in real time. Cast study examples and statistical evaluation of the method's performance are also presented.

Abstract

The National Oceanic and Atmospheric Administration has completed the installation of a 30-site demonstration network of wind-profiling radars in the central United States. The network is being used to demonstrate and assess the utility of wind profiler technology in a quasi-operational environment and to help define operational requirements for possible future national networks.

This paper reviews the cause of velocity folding and presents the unfolding method recently implemented for the NOAA Wind Profiler Demonstration Network. The method uses a simple median cheek to dealias (unfold) radial velocities quickly and effectively in real time. Cast study examples and statistical evaluation of the method's performance are also presented.

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