2. Optimize the TASK Configuration menu for wind shear detection as shown in the
example in the following figure.
This example uses high-resolution sampling in range (125 or 62.5 m (205 ft 1 in)).
Microbursts are low-level phenomena, so it is best to configure elevation angles that are
as low as can be tolerated by the surrounding clutter.
Typically an angle set such as 0.5°, 1.0° and 5.0° is useful. The bottom 2 angles can be
used for shear detection, while the upper angle can serve as the basis for an additional
reflectivity aloft criterion for the WARN product. Sector scan mode is used to limit the
data coverage to the terminal area which speeds the update rate.
Figure 65 TASK Configuration for Microburst Detection
3. Set the TASK Scheduler in wind shear detection mode to provide an update rate
(repeat time) of at least one complete task per minute.
To provide optimal response, do not schedule other tasks. This allows IRIS to devote its
full resources to detecting microbursts.
Chapter 5 – Configuring and Scheduling Optional IRIS Products
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