• On an ad hoc basis to cut through a line of storms or an area of suspected severe
weather.
For ad hoc cross sections, use the XSECT tool on the Quick Look Window to configure
the cross section line with a mouse.
If you do not use the mouse to define a cross section line, display a PPI or CAPPI
product with range rings and range numbers to help you configure the cross section.
The following figure shows the XSECT corresponding geometry for the previous
configuration example.
Zero
Label
Horizontal Distance 01053–
Center Point
Right
Side
Point Closest
to Radar
Cross-Section
Line
Center Point
Range=16
Azimuth=300
Width = 45
X = –13.9
Y = 8.0
Left
Side
10
Height
0
Orientation Angle = 50.0
If Angle is set to 50 + 180 = 230, left
and right sides of XSECT display are
swapped.
Cross Section Configuration Parameters
Cross Section Display Parameters
Figure 41 Cross Section Geometry
1. Select Type > XSECT.
2. In Data:Display, choose from: Z dBZ, Z Rain, V Vel, W Width, T dBZt, T Rain,
Zd ZDR, and Zd Rain.
3. For Center (x,y):
a. Look at the CAPPI or PPI image that you want to "slice" and decide where you want
to make your cross section.
b. Select the center point for the cross section.
This is where the range marks and azimuth lines are useful.
Usually, you place the center point on the radar feature that you want to "slice," as
shown in the example.
c. You enter the coordinates in X-distance (east) and Y-distance (north) in km.
Enter South and West distances as negative numbers.
Chapter 3 – Configuring IRIS Products
RESTRICTED 111
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