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
