Data / Science Data Products / VAPs

RWPPRECIPCOR

Radar Wind Profiler: Precipitation, corrected

Evaluation VAP

The Radar Wind Profiler: Precipitation, corrected value-added product (RWPPRECIPCOR VAP) includes calibrated RWP reflectivity data in precipitation modes (vertically pointing), available in both short-duration, high-resolution and long-duration, low-resolution modes. Calibration of the radar reflectivity was performed based on colocated surface disdrometer measurements.

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The VAP maps calibrated data from both resolution modes onto a unified time-height grid and merges the data sets based on signal-to-noise ratio and spectral width criteria. In addition, it includes initial quality control checks to remove spurious noise and performs preliminary checking for hydrometeor and cloud top status. These features collectively enhance the quality and usability of the RWP data, which will be used as an input to perform vertical air motion retrieval in clouds.

Scientists can use the RWPPRECIPCOR data for precipitation-related studies, and an in-cloud vertical velocity value-added product is currently being developed using the RWPPRECIPCOR data for convective cloud cases at the Southern Great Plains atmospheric observatory. These two VAPs may also be processed for other ARM sites if the RWP operates in vertically pointing mode at those locations.

To ask questions, provide feedback, or report data problems, please contact developer Aifang Zhou and/or ARM translator Dié Wang.