Baseline Spec Template - NEXRAD Radar Operations Center - NOAA

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Document Number 2620003NCode Identification 0WY55WSR-88D ROC2009Build 12.02.3 Annotations2.3.1 AlphanumericStandard Annotations (Appendix A, I(A))Elevation AngleData Level CodeMaximum Data Value Detected (both positive and negative)2.3.2 Special SymbolsNone defined2.4 Product InteractionAll overlay products are displayable on this product: Hail Index Mesocyclone Storm Tracking Information Tornado Vortex Signature.2-3
Document Number 2620003NCode Identification 0WY55WSR-88D ROC2009Build 12.03 SPECTRUM WIDTH (SW AND SDW)3.1 SS Product Description"This product shall provide the radial velocity spectrum width data both displayable as an image andformatted as a data array. For the image version, variations of the product shall be organized toprovide various areas of coverage and display resolutions, while the data array version shall providethe highest resolution available for the entire radar coverage area. Both versions will be limited tolowest 70,000 feet AGL of the atmosphere. The image version of the product shall be generated forany azimuth scan at a single elevation angle based on user requirements. The data array version ofthe product shall be generated for any super-resolution azimuth scan at a single elevation anglebased on user requirements. Each scan shall be updated once per volume scan time. For the imageversion, each product shall be available for 8 spectrum width data levels, while 256 spectrum widthdata levels shall be provided in the data array version. Each product shall include annotations forthe product name, radar ID, time and date of scan, data level code, elevation angle, maximum datavalue detected (knots), radar position, radar elevation above MSL, and radar operational mode."Super-Resolution refers to the following three spatial resolution and coverage enhancements: 0.5degazimuth sampling, 0.13nmi range sampling of Reflectivity, 162nmi coverage area for Mean RadialVelocity and Spectrum Width. The relevant distinction for Spectrum Width is the increasedcoverage area and reduced azimuth sample interval.3.2 Display FormatThe product is displayable in full- or quarter-screen format (see Appendix B).3.2.1 Data LevelsFor the image version, the range of spectrum width data values displayed is from 0 to 20 kts (Anylevels exceeding 20 kts will be truncated to 20 kts). For the data array version, the range ofspectrum width data values displayed is from 0 to 40 kts (the RDA clips spectrum width at NyquistVelocity/√3).3.2.2 Color Level Code TablesThe color level code used for display of the image version spectrum width is NEXRAD system (oragency) adaptation data. The currently defined color table for spectrum width is listed.8-LevelCodeDisplayknotsRangeknotsColor LevelsCodeColor0 ND SNR
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Baseline Spec Template - NEXRAD Radar Operations Center - NOAA

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