Precipitation Sensor Replacement Plan: Coefficient Calculation and Assessment of Past and Future Sensor Accuracy

Contents:

• Executive Summary
  • Sizes of orifice, tank, and instrument
  • Tank gauge accuracy
    • Sensor manufacturer accuracy
    • Observed accuracy 2015-2020
  • Replacement sensor
• Rain Gauge Float Coefficients
  • How to relate orifice collection to tank level
    • Checking the equation
    • Writing a function
  • Prototype UPLO SH tipping bucket
    • Correction
  • Use of a 4-20mA magnetorestrictive float
    • The sensor
    • Reading the output
    • Convert the output to mm
  • Converting sensor to orifice measurements
    • VARA test
    • Forensic Coefficient Examination
    • Variation on estimates of shelter tank area
• Tank Gauge Accuracy:
  • 1. what is the accuracy of these sensors?
    • MTS LT420 analog level transmitter
  • 2. What accuracy do we claim in metadata?
  • 3. Have we been observing that accuracy?
    • Behavior when QC thinks it’s raining
    • Filter out drains
    • Variation in measurements
    • Precision across sites
  • 4. How much of our record has been this precise?
  • Possible improvements to measurement
    • Average- down sample from 5min
    • Average- upsample to synthetic 15 sec data
    • Rounding to nearest 0.5 mm
  • Unexplored here:
  • Accuracy of replacement sensors
  • Improvement from calculated thermal expansion
    • How to calculate thermal expansion
    • Calculating impact on measurement
    • Conclusion

Contents

• Precipitation Sensor Replacement Plan: Coefficient Calculation and Assessment of Past and Future Sensor Accuracy
  • Indices and tables

Indices and tables

• Index
• Search Page