Vaisala IRIS, User Manual

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Set the Skip Time field to 01:00 so the RAIN1 product runs every hour. This is recommended
because the RAIN1 product for multiple hour accumulations works best if there is a product
every hour.
The
RAIN1 product must wait for arrival of all the input CAPPI s during the accumulation
period.
The trigger is the arrival of a
CAPPI that is in the next accumulation period.
There are 2 cases that the product scheduler must handle, that is, the next hour CAPPI either
arrives or it does not arrive. Note that in the time-line figures below:
• The horizontal line represents the data time, the time of the start of a volume scan.
• The
C
represents an input CAPPI product.
• The vertical bar represents an the next accumulation period.
Case 1: Normal Case: Next hour CAPPI Arrives
C C C C C C C C
The RAIN1 product is run as soon as a CAPPI from the next accumulation interval arrives.
Case 2: Late Case: Next accumulation Interval CAPPI Does Not Arrive
C C C C C C C
Tail Wait
The RAIN1 product runs after the Tail and Wait times have elapsed from the file arrival
time of the last input CAPPI .
Tail is the time difference between the data time of the last CAPPI and the next
accumulation period. The Wait time threshold is configured in IRIS Setup > Product , where
you can configure a different value for cases with raingage inputs. The Wait time threshold
is tuned to account for any network delays.
More information
‣ RAIN1 Scheduling with GAGE Product (page 372)
‣
Scheduling Products (page 114)
IRIS Product and Display User Guide M211319EN-H
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