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Vaisala IRIS - RHI: Range Height Indicator; Figure 20 RHI Example Configuration

Vaisala IRIS
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1. Configure the RAW product.
See Configuring RAW products (page 63).
2. Load the associated tasks in the TASK Scheduler and select Go.
3. In the Product Scheduler menu, load the product and choose All.
This causes the RAW product to be generated every time the task runs.
4. In the Product Output menu, specify the desired archive media as the output device
and choose All in the header line for the product, so all output is sent to the archive.
5. In the Archive menu, mount a tape or disk and select Commands > Record.
3.15 RHI: Range Height Indicator
Z : dBZ
- 41.7 57.9
300.0
10.0
2.0 1.0
600 X 290
RHI T Z V W
56.0
Az: 6 angles from 303.0 to 313.0 El: Sector
Figure 20 RHI Example Configuration
RHI is a full screen image showing the detailed cross-sectional structure of a storm, used for
identifying severe storms, hail and bright band.
In general, you schedule the associated RHI task through a region of interest.
During RHI scanning, the antenna azimuth is fixed and the elevation is swept, typically from
near 0 ... 90° to create a vertical cross-section eect.
If your antenna permits, it is often useful to make an over-the-top RHI task (elevations for
example -2 ... 182). This gives a picture covering 2 elevations at the opposite sides of the
antenna. Negative elevations are most useful in RHI if you select the azimuth to the direction
of least beam blocking of the radar horizon.
IRIS Product and Display User Guide M211319EN-H
64 RESTRICTED

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