Vaisala IRIS - Page 131

For example, if a PPI is the input to the COMP product, then the output is a PPI product.
The types of products that can be combined by COMP are:
• BASE
• CAPPI, including 3D CAPPI (dBZ and R)
• HMAX
• MAX (side panels are removed)
• PPI (dBZ and R)
• RAIN1
• SHEAR
• SRI
• THICK
• TOPS
• USER
• VIL
• WARN
Use of Composites by Other Products
COMP produces real IRIS products instead of just "pasting" the images together to make a
combined picture.
This means that other IRIS products, which use products as input, can be run on the
composites. For example, a composite CAPPI can be used as input to a RAIN1 accumulation
product. A composite 3D CAPPI can be used as input into the optional IRIS 3D package.
Products such as WARN, TRACK, and FCAST can run on IRIS products that are composites.
Automatic Remapping of Input Products
Compositing of products can be complicated because of issues of dierent radar
resolutions, maximum range, angle spacing, number of pixels, map projections, and similar.
IRIS makes it easy by automatically remapping the input products to the final output
projection and resolution. This means that you can input products that have dierent pixel
resolution, center position and maximum range, even in dierent projections (Mercator
versus azimuthal equidistant), and IRIS does the remapping to make the final product.
This means that when you make composites, you can use normal single-radar projections.
There is no need to make a special set of products to serve as input to the composites. This
simplifies system configuration management.
Sources for Input Products
From the the host computer, select where input products are made and who makes them
(IRIS against non-IRIS). The products used by COMP can be:
• Generated locally on the same workstation where the composites are made.
• Sent over the network from another workstation (IRIS or non-IRIS using UPI).
• Any combination of the above.
Input of Products from Non-IRIS Systems
The ability to send products over the network to a central compositing computer, plus the
ability to automatically remap data, makes it easy to combine data from non-IRIS systems.
Chapter 5 – Configuring and Scheduling Optional IRIS Products
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