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  4. 3. Data Patterns

3. Data Patterns

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3.1 Ecological Data Patterns

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Rainfall increases stream flow and dilutes in-stream conductivity (inverse relationship).

3.2 Sensor Fouling Data Patterns

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Chart of live storm data showing the turbidity rise in response to increased flow.
Chart showing how turbidity readings increase with algae and leaf accumulation on a sensor.
Charts showing the change in conductivity and turbidity readings when a sensor is cleaned.
Charts showing changes in turbidity readings when debris attaches and detaches from a sensor.
Chart showing how algal growth on a sensor can make it nearly impossible to determine actual turbidity.
Charts showing how high sharp turbidity drop-offs can indicate debris detaching and reattaching..
If depth decreases after a storm but sensor turbidity is still high, confirm turbidity level using a handheld meter.
TurbLow and TurbHigh are essentially the same readings when NTU is less than 250.

3.3 Battery Level as a Diagnostic

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