Tipping bucket raingauge

1
Tipping bucket raingauge
Specifications Sensor type Tipping
bucketOutput 0.1 second switch closureSwitch
Sealed reed switchSensitivity 1 tip per 0.01",
1 tip per 1 mm, or 1 tip per 0.25 mmAccuracy
2 up to 2"/hrContact rating 3 watts, 0.25
amps, 24 VdcSize 8" dia x 13.75" high
2
Acoustic disdrometer
Minimum drop size 0.5 mm
3
2DVDvideo disdrometer
4
Determines both size and shape which are
important for developing polarimetric based
relationships as we will see later.
5
Gauges/Disdrometers

• Problems in relating single point measurement to
  radar volume
• Evaporation
• Wind effects
• Measurement errors
• Deploy gauges in pairs, at high density
• Cannot afford to do so with 2DVDs---25K per copy