HCR Request Guidance

The NCAR HIAPER Cloud Radar (HCR) is an airborne millimeter (W-band) wavelength radar that provides high spatial and temporal resolution remote sensing capabilities on the NSF/NCAR HIAPER aircraft. The HCR is housed in a 20 inch diameter wing pod and is capable of estimating winds and microphysics over a 15 km radius with 40 meter gate spacing. HCR can be operated in scanning and fixed-pointing modes for detecting cloud boundaries and cloud liquid and ice. The HCR beamwidth is 0.7 deg and range resolution is between 40 and 150 m.

Configuration: NSF/NCAR HIAPER GV aircraft
Number of available systems: 1

NCAR HIAPER Cloud Radar (HCR) Contact

Dr. Jothiram Vivekanandan / vivek@ucar.edu / (303) 497-8402

HIAPER Cloud Radar (HCR) Facility Request Guidance Information
Parameter Specification
Antenna 0.3 m, lens
Antenna Gain 46.21 dB
Beamwidth 0.68 deg
Transmit Frequency 94.40 GHz
Transmit Wavelength 3.2 mm
Transmitter Klystron
Peak Power 1.6 kW
Pulse Width 0.256 - 1.0 μs
Pulse Repetition Frequency 10 kHz
Receiver Dynamic Range 76 dB
Receiver Bandwidth 20 MHz
System Noise Power -104 dBm
Noise Figure 8.9 dB
Sensitivity (0 dB SNR) -39.d dBz @ 1km
Unambiguous Velocity +/- 7.75 m/sec
Dwell Time 100 ms


Typical Values:

Mission Coordinator Display

Time Series Data: Moments data are provided in the Operations Center after research flights. Time series data are not typically available until after the project.