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DLOC TOPIC 3 LESSON 1

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Previous Page: WSR-88D Range Resolution

WSR-88D Base Product Resolutions

Base Reflectivity Products

There are multiple resolutions of base products generated at the RPG. For AWIPS users, the highest resolution that is available is always displayed. Though lower resolution products exist, this section will present the highest resolution available. The focus is on the distinction between super resolution and legacy resolution. Super-Res base reflectivity has a range resolution of 0.25 km (0.13 nm), an azimuthal resolution of 0.5 degrees, and a display range of 248 nm. Legacy Base Reflectivity products have an azimuthal resolution of 1.0 degree, and range resolutions of 0.25 km. Though Reflectivity products w/ range resolutions of , 1 km (0.54 nm), 2 km (1.1 nm), or 4 km (2.2 nm) are generated, they are rarely seen in AWIPS.

Figure 13.  Illustration of data resolution for base reflectivity products.  Click for larger view.

Figure 13: Super-Res vs. best available legacy resolution Base Reflectivity products.

Base Velocity and Spectrum Width Products

Super-resolution Base Velocity and Spectrum Width products have a range resolution of 0.25 km (0.13 nm), an azimuthal resolution of 0.5 degrees, and a display range of 162 nm. Legacy Velocity and Spectrum Width products have an azimuthal resolution of 1.0 degree, and range resolutions of 0.25 km (0.13 nm). Though Base Velocity and Spectrum Width products with range resolution of 0.50 km (0.27 nm), and 1 km (0.54 nm) are generated, they are rarely seen in AWIPS.

Figure 14.  Illustration of data resolution for base velocity and spectrum width products.  Click for larger view.

Figure 14: Super-Res vs. best available legacy resolution Base Velocity and Spectrum Width products

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Section 6: WSR-88D Data Collection