USERS MANUAL
CHATTER™ DATA LOGGER
55
Stormflow
General
A stormflow is a condition where water is spilled over a crest with a known geometry. The Chatter™ Data Logger
can detect stormflows and calculate the amount of water spilled over the crest. The Chatter™ Data Logger
handles stormflow conditions in five different ways.
Recording counts how many times a
stormflow is detected
The following data are logged by the
Chatter™ Data Logger:
Number of stormflows detected today
Number of stormflows detected yesterday
Total duration of all detected stormflows
Total duration of detected stormflows today
Total duration of detected stormflows
yesterday
Standard calculates how much water is spilled
regardless of the duration of the stormflow
The following data are logged by the
Chatter™ Data Logger:
Number of stormflows detected today
Number of stormflows detected yesterday
Total duration of all detected stormflows
Total duration of detected stormflows today
Total duration of detected stormflows
yesterday
Total volume in all stormflows, the green
shaded area.
Total volume in all stormflows today
Total volume in all stormflows yesterday
Conditional calculates how much water is
spilled, but certain conditions must be met
before it is accepted as a stormflow:
The first spill must last longer than a
minimum start time before it is accepted as a
stormflow.
After the last spill, the spill must be off
longer than a minimum stop time before the
stormflow is accepted as ended.
The following data are logged by the
Chatter™ Data Logger:
Number of stormflows detected today
Number of stormflows detected yesterday
Start- and stop time for the last 10
stormflows
Total duration of all detected stormflows
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