3.15.2 Should I Use RHI or XSECT?
You can study the three-dimensional structure of the atmosphere with the XSECT and RHI
products, which show a range-height representation or vertical "slice" of a radar parameter.
If you have areas of interest, such as paths to runways at an airport, you can run RHI or
XSECT products associated to those in you routine schedule.
Table 11 Comparison of RHI and XSECT
Feature RHI XSECT
Radar location Radar location is fixed to one point. You can make a cross section at any point along
the polar volume.
Note that you cannot get below the lowest
elevation.
Resolution Typically, RHI gives a much better
resolution.
--
Schedule If the user of the radar images can
control the tasks, they can define a
product configuration in advance
(using * for the azimuth).
When something interesting appears,
they can run an RHI task with an
azimuth determined using other IRIS
products.
You can schedule an XSECT when you want, even
ad hoc.
If your radars are in a network of several users, or
if your task schedule is tight, you perhaps cannot
let the users run RHIs when they want.
More information
‣
XSECT: Cross Section (page 110)
‣
RHI: Range Height Indicator (page 64)
Chapter 3 – Configuring IRIS Products
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