1 DVD

SOLID AND SIMPLIFIED BUT
YET DETAILED INFORMATION

Outcomes

THE 1DVD PROVIDES FOLLOWING DATA

  • Front view of raindrops
  • Timestamp of each particle
  • Diameter of raindrops
  • Estimate of horizontal velocity of raindrops

 

IN ADDITION, THE FOLLOWING DATA ARE COMPARED

  • Rainrate vs. time
  • Dropsize distribution
Measuring Principle

HOW THE 1DVD WORKS

The 1DVD is working on the basis of one high-speed camera<br/>and permanent illumination.

Details

Specifications
 

The OUTDOOR UNIT measures every single precipitation particle: for example rain-drops, hailstones or snowflakes. The INDOOR UNIT’s analysis PC gives detailed information about size, shape, state of aggregation, orientation and fall speed of each precipitation particle (see Outcomes).<br/><br/>

  • VERTICAL RESOLUTION: better than 0.17 mm for veloc. < 10 m/s
     
  • HORIZONTAL RESOLUTION: better than 0.08 mm for veloc. < 10 m/s
     
  • INTEGRATION TIME FOR RAIN RATE: individual drops recorded,
    in viewer to be specified between 15 sec. and 12 hours

 

 

 

Benefits

AUTOMATIC RECORDING AND ACCESS
TO EVERY SINGLE PRECIPITATION PARTICLE

  • Cost-effective information about precipitation microstructure

  • Location information: analyses on subsets
    of the measurement area are possible

  • Continuous observation of measurement area

  • Location information: analyses on subsets of the measurement area are possible
Application Examples

METEOROLOGY AND ENVIRONMENT

  • Adjustment of weather radar systems (Air) Traffic control
  • Erosion of soil through raindrop impact
  • Hydrological models for flood warning and water resource management
     

TELECOMMUNICATION AND WAVE PROPAGATION

  • Prediction of specific rain attenuation
  • Explanation of tropospheric polarization rotation
  • Propagation effects in mixed phase precipitation
  • Input for propagation channel models
     

INDUSTRIAL APPLICATIONS

  • Test of spray nozzles
  • Measurement of artificial rain
  • Efficiency of irrigation systems