KITradar
For analysis of the dynamic structure of individual clouds and cloud systems and for area-wide, continuous precipitation measurements, a dual polarized C-Band Doppler radar is operated by IMK-TRO at KIT Campus North since July 2013.
Radar reflectivity and Doppler velocity measurements are used to investigate the modification of clouds by orographic structures, such as those present in the Upper Rhine Valley near Karlsruhe (Black Forest, Vosges), and the resulting effects on precipitation amounts at the surface. Reflectivity measurements in two vertically perpendicular planes of polarization provide information on the shape and type of precipitation particles measured.
Measurements of the radar are available at: http://www.imk-radar.de/frei.html
Specifications |
Dual polarized C-Band Doppler Radar DWSR-2501C |
Manufacturer: |
EEC, Enterprise, Alabama, USA |
Location: |
Institute for Meteorology and Climate Research, KIT campus north |
Geographic coordinates: |
8 deg 26' 13" E ; 49 deg 5' 33" N |
Gauss-Krüger: |
3458.6 E; 5439.6 N |
Frequency: |
5610 MHz |
Wavelength: |
5.3 cm |
Peak pulse power: |
250 kW (84 dBm) |
Pulse repetition rate: |
250 bis 1180 Hz |
Pulse duration: |
0.4µs, 0.8 µs, 1.0 µs or 2.0 µs |
Beamwidth at -3 dB: |
0.98 deg (main lobe) |
Antenna diameter: |
4.2 m |
Gain: |
45.7 dB |
Sensitivity (MDS): |
-111 dBm |
Range: |
120 km for volume measurements |
Measured values: |
Reflectivity (Z), radial Wind (V), spectral width (W), Differential Reflektivity (ZDR), Differential Phase (PhiDP), Spezific Differential Phase (KDP), Copolar Correlation Coefficient (RhoHV), Linear Depolarisation Ratio (LDR) |
Derived values |
Precipitation intensity, vertical liquid content, |
Clutter suppression: |
high pass Doppler Filter |
Scan mode (cyclically every 10 minutes): |
1. Full volume with 14 elevations at 0.4, 1.1, 4. Small valume scan with lowest 5 elevations, LDR mode |
Resolution radial: |
500 m |
Resolution azimuthal: |
1.0 degree |
Derived products: |
500 m x 500 m |