The final output of the product is a color-coded map of echo thickness heights for the
selected dBZ Contour. You can also use IRIS Quick Look Window > OPT to display the
average reflectivity in the same layer.
THICK is aected by the same limitations as the TOPS and BASE products.
1. Select Type > THICK.
2. In Data : Display, choose dBT Height, dBZ Height, or dBZc Height.
3. In Max Range, choose the maximum range for the product.
Note that earth curvature eects are greater at greater ranges. You can display a PPI at
your lowest elevation angle and use the cursor tool to see what heights are possible to
observe at various ranges.
For example, for a 0.5° elevation angle at 100 km (62.1 mi), the beam is centered at
2.3 km (1.4 mi). Therefore it is not possible to detect echo bases lower than this.
4. In dBZ Contour, select the dBZ threshold for the echo base.
5. Select Pseudo for all pixels at which the lowest elevation angle is above the contour to
use the height of the lowest elevation angle as the base.
Similarly, all pixels at which the highest elevation angle is above the contour use the
height of the highest elevation angle as the top.
6. Apply the AZ/EL Smoother.
Enter the values in degrees, first for the azimuth and then for the elevation direction.
Typical values are 1.0, 1.0.
More information
‣
Display Parameters (page 27)
‣
Product Parameters (page 23)
‣
Associating Products with Tasks (page 17)
Chapter 3 – Configuring IRIS Products
RESTRICTED 85
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