Table of Contents
Cloud radar JOYRAD-10
Cloud radar JOYRAD-10 installed at Jülich
Principle
JOYRAD-10 is a vertically pointing X-Band Doppler cloud radar MIRA-10 manufactured by METEK GmbH. It is located at the Forschungszentrum Jülich as part of JOYCE. It has been installed as part of the Emmy-Noether research group OPTIMICE led by Stefan Kneifel in order to perform triple-frequency radar observations in combination with Ka- and W-Band radars.
Measurement modes
- Vertically pointing observations with integration times up to 1 seconds.
JOYCE-CF Standard Operation Procedures
- Standard measurement mode is vertically pointing, 2 second integration time
Calibrations and data quality assurance procedures
- Check with co-located disdrometer to find out reflectivity offsets
- Consistency check with other cloud radars
Data availability
Data for JOYRAD-10 are available on request. Please fill the data request sheet and send it to info@joyce.cloud
| Dataset | Temporal resolution | File size | Filename | Remarks |
|---|---|---|---|---|
| Doppler spectra, Radar moments | 2 seconds | variable size (up to 1 GB/hour in case of thick clouds) | YYYYMMDD_HHMMSS.znc | NetCDF file |
| Doppler spectra | 2 seconds | variable size (up to 300 MB/hour in case of thick clouds) | YYYYMMDD_HHMMSS.zspc | Binary file |
- Dual-wavelength ratio Ka/X-Band
Link to current observations
Data quicklooks can be found in the JOYCE quicklook archive and in the METEK archive
Measurement examples
Example time series of JOYRAD-10 observations (one hour of reflectivity and Doppler velocity as a function of height)
JOYRAD-10 History
| Period | Place | Project |
|---|---|---|
| 10/2018 - today | Research Center Jülich, Germany | OPTIMICE |
Specifications
| Parameter | Specification | Remark |
|---|---|---|
| Frequency | 9.4 GHz | corresponds to wavelength of 3.2 cm |
| Manufacturer | Metek |