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pluvio

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Pluviometer

Pluviometer ©B. Pospichal
Pluviometer installed at Jülich

Principle

The OTT Pluvio 2 is a precipitation gauge basing on a weighing measurement principle. It detects both liquid and solid precipitation by weighing the bucket content. The following values are recorded:

  • intensity
  • accumulated intensity
  • bucket filling level
  • temperature load cell

JOYCE-CF Standard Operation Procedures

  • Temporal resolution 1 minute
  • Precipitation amount
  • Particle concentration and fall velocity per velocity class and diameter class)
  • Equivalent radar reflectivity factor from particle size distribution (6th moment)
  • Fall velocity in 32 classes (0.05, 0.15, 0.25, 0.35, 0.45, 0.55, 0.65, 0.75, 0.85, 0.95, 1.1, 1.3, 1.5, 1.7, 1.9, 2.2, 2.6, 3, 3.4, 3.8, 4.4, 5.2, 6, 6.8, 7.6, 8.8, 10.4, 12, 13.6, 15.2, 17.6, 20.8 ms-1)
  • Particle diameter in 32 classes (0.062, 0.187, 0.312, 0.437, 0.562, 0.687, 0.812, 0.937, 1.062, 1.187, 1.375, 1.625, 1.875, 2.125, 2.375, 2.75, 3.25, 3.75, 4.25, 4.75, 5.5, 6.5, 7.5, 8.5, 9.5, 11, 13, 15, 17, 19, 21.5, 24.5 mm)

Data availability

Data are available on request, please fill the data request sheet and send it to info@joyce.cloud.

Dataset Temporal resolution File size Filename Remarks
All variables (see above) 1 minute 1 file per day (6-7 MB) sups_joy_dm00_l1_any_v00_YYYYMMDD.nc in future available via SAMD

Data quicklooks can be found in the JOYCE quicklook browser.

Measurement examples

Rain_rate Parsivel Overview
Example time series of Pluviometer (left: rain rates from Pluviometer (center), compared to Parsivel disdrometer and MRR, right: daily accumulated precipitation from same instruments)

Disdrometer History

Period Place Project
06/2014 - today Research Center Jülich, Germany TR32

Technical Specifications

Parameter Specification
Orifice opening 200 cm²
Recordable precipitation amount 1500 mm
Rain rate Minimal intensity 12 mm/h
Rain rate Maximal intensity 1800 mm/h
Accuracy ±5 %
Rain rate resolution 0.6 mm/h
Prod. Temporal Resolution 60 s
Dimensions (diameter x H) 450mm x 670mm
Weigth (empty) approx 15kg
Power supply 9 … 28V DC, reverse polarity protection
Current drawn Electronics 15 mA at 12 V DC / Heating 2.2 A; 24 V DC
Manufacturer OTT
pluvio.1598956757.txt.gz · Last modified: 2020/09/01 12:39 by bpospich