With ultra high definition spatiotemporal resolution capability, the WR-2100 Dual Polarimetric Doppler Weather Radar grasps omni-directional precipitation intensity in 50-metre-mesh in six-second-interval. By conducting high spatiotemporal resolution monitoring of the development process, three-dimensional structure as well as movement of a cumulonimbus, which causes precipitation, the development of short localised rainstorms can be predicted. Moreover, the WR-2100 has been downsized during the development phase to the extent that can be classified as one of the smallest and lightest Dual Polarimetric Doppler Weather Radar available in the market.
A WR-2100 is installed at Rijeka University, in the Republic of Croatia, with the purpose of developing a prediction and early warning system for short, localised rainstorms. A mud flow/flash flood working group under SATREPS (Science and Technology Research Partnership for Sustainable Development) installed the WR-2100 as part of an action plan sponsored by the government of Japan.
Yosuke Yamashiki, Professor of GSAIS at Kyoto University, led a study group working on probability studies for sediment distasters using precipitation data from WR-2100. These studies concluded in March, 2014.
* GSAIS: The Graduate School of Advanced Integrated Studies in Human Survivability
- Classified as one of the smallest and lightest Dual Polarimetric Doppler Weather Radar available in the market (Radome diameter: 108 cm, Radome weight: 68 kg)
- Utilises solid state Radar technology
- Solid state Radar technology reduces the operating cost thanks to the less power consumption as well as replacement of consumables. Moreover, high precision monitoring of precipitation is facilitated through a wide range of signal processing capability brought about by the solid state technology.
- High-precision, real-time monitoring of precipitation intensity (mm/h)
- Outputs moving velocity of nimbus
- Outputs dual polarimetric Doppler information (Zdr, Kdp) for computing diameter of precipitation particles as well as discriminating types of precipitation (rain, snow, etc.)
- 3D scan to observe the vertical structure of a cumulonimbus
- Suitable for localised meteorological monitoring as well as for monitoring of short localised rainstorm, when networked into “Multi-Radar System”
The antenna unit can be tucked in a minivan to be carried to the monitoring location. Also, it can be carried through an elevator to bring them up onto the monitoring site and installed by human personnel without using heavy machineries such as cranes. (Installation site at Rokko Campus of Kobe University)
|Antenna Polarity||Dual polarimetric (Vertical and Horizontal), simultaneously transmitted/received|
|Operating Frequency||9.4 GHz band|
|Beam Width||2.7 degrees (both horizontal and vertical beams)|
|Peak Output Power||100 W (both horizontal and vertical beams)|
|Vertical Scan Angle||-2 to 182 degrees (adjustable)|
|Antenna Rotation Speed||16 rpm max. (adjustable)|
|Maximum Range||50 km max|
|Scan Modes||PPI, CAPPI, RHI (Sector Scan available)|
|Incorporated||Reflectivity factor Zh (dBZ), Doppler velocity V (m/s), Doppler velocity width W (m/s), Cross polarization difference phase φdp (deg), Specific differential phase KDP (deg/km), Correlation coefficient between two polarizations ρHV, Differential reflectivity factor ZDR, Rainfall intensity R (mm/h)|
|Data Correction||Distance attenuation, Rain attenuation, Excessive Doppler velocity, Suppression of signal returns from land, Clutter suppression|
|Power Supply||100-240 VAC, Single Phase, 50/60 Hz|
|Power Consumption||No more than 650 W|