OTT Parsivel 2

Mentor: R. Gierens

Principle

The OTT Parsivel 2 is a laser-based optical system for complete and reliable measurement of all types of precipitation. The size range of measurable liquid precipitation particles is from 0.2 … 5 mm, for solid precipitation particles it is from 0.2 … 25 mm. In the process, precipitation particles can have a velocity of from 0.2 … 20 m/s. The precipitation particles are categorized as follows:

  • Drizzle
  • Drizzle with rain
  • Rain
  • Rain, drizzle with snow
  • Snow
  • Snow grains
  • Freezing rain
  • Hail

Instrument


Current setup at Research Center Jülich on the roof of IEK-8: OTT Parzivel 2.

Data

History

Period Place Project
04/2013 - today Research Center Jülich, Germany TR32

Specifications

Parameter Specification
Wavelength 780 nm
Output power 0,5mW
Beam dimension W x D 180 x 30 mm
Measurement area 54 cm², detection of border events
Particle size of liquid precipitation 0.2 … 5 mm
Particle size of solid precipitation 0.2 … 25 mm
Particle velocity 0.2 … 20 m/s
Rain rate Minimal intensity 0.001 mm/h drizzle/rain
Rain rate Maximal intensity 1,200 mm/h
Accuracy ±5 % (liquid) / ±20 % (solid)
Dimensions (HxWxD) 670 x 600 x 114 mm
Power supply 10 … 28V DC, reverse polarity protection
Current drawn Electronics 65 mA at 24 V DC / Heating 2/4 A; 12/24 V DC
instruments/parzivel/parzivel.txt · Last modified: 2016/07/12 16:27 by rosa
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