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1 quality control of canadian radar reflectivity data.
| Content Provider | CiteSeerX |
|---|---|
| Author | Zhang, Jian Langston, Carrie |
| Abstract | Abstract — Echoes in radar reflectivity data may correspond not just to precipitating particles, but may also be due to biological targets, anomalous propagation (AP) or ground clutter (GC). In earlier work, we described the development of an automated technique to quality control radar reflectivity data from WSR-88D so that the cleaned data may be used by severe weather and precipitation estimation algorithms. However, that work relied heavily on the use of velocity data that was nearly collocated in time with the reflectivity information. This is not the case for Canadian radar data. In this paper, we describe the development of a reflectivity-only classifier that is capable of identifying non-meteorological echoes in Canadian radar products. The classifier incorporates radial preprocessing, entropy checks, a neural network to combine texture and vertical features based on just reflectivity and a post-processing step that classifies regions instead of individual radar gates. There are, however, crucial differences between the automated classifier developed for WSR-88D and the one used for Canadian radar data. This paper describes the adaptations done to the classifier developed for WSR-88D S-band Doppler radars to enable it to work on C-band non-Doppler radars with a different scanning strategy. I. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Canadian Radar Reflectivity Data Quality Control Canadian Radar Data Canadian Radar Product C-band Non-doppler Radar Radar Reflectivity Data Biological Target Non-meteorological Echo Radial Preprocessing Anomalous Propagation Neural Network Control Radar Reflectivity Data Reflectivity Information Reflectivity-only Classifier Severe Weather Automated Technique Vertical Feature Velocity Data Ground Clutter Precipitation Estimation Algorithm Different Scanning Strategy Post-processing Step Crucial Difference Abstract Echo Entropy Check Individual Radar Gate Wsr-88d S-band Doppler |
| Content Type | Text |
| Resource Type | Article |
