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--- joyrad35 [2020/08/17 10:48] – [Specifications] bpospich
+++ joyrad35 [2021/02/03 10:02] (current) – [Composite products using data from JOYRAD-35] bpospich
@@ Line 7: / Line 7: @@
 **JOYRAD-35** is a scanning Doppler cloud radar MIRA-35 manufactured by [[https://metek.de/|METEK GmbH]]. It is installed at the Forschungszentrum Jülich as part of [[http://cpex-lab.de/cpex-lab/EN/Home/JOYCE-CF/JOYCE-CF_node.html|JOYCE]]. The radar transmits a linearly polarized signal at 35.5 GHz (Ka-Band) and receives co- and cross-polarized signals simultaneously. In this way, vertical profiles of reflectivity, Doppler velocity, Doppler spectral width and of linear depolarization ratio are detected from 150 m to 15 km above ground. Given these measurements, information on the macrophysical (cloud boundaries, type of cloud particles) and microphysical (e.g., liquid and ice water content) properties of the detected cloud can be derived. The radar has full 3D-scanning possibilities for the entire upper hemisphere.
-===== JOYRAD-35 History =====
-^  Period  ^  Place  ^  Project  ^
-| 2017 |  |  Instrument upgrade |
-| 09/03/2012 - today | [[http://www.fz-juelich.de/|Research Center Jülich]], Germany | JOYCE |
-| 08/11/2011 - 08/03/2012 | Munich Airport, Germany| iPort campaign |
-| 03/2011 - 07/11/2011 | [[http://www.fz-juelich.de/|Research Center Jülich]], Germany | JOYCE |
-{{:wiki:instruments:joyrad35_07.jpg?direct&600|JOYRAD-35 ©B. Pospichal}} \\
-//Cloud radar JOYRAD-35 installed at Jülich//
-===== Measurement examples =====
-{{wiki:examples:200704_jue_l2_radar.png?direct&400|JOYRAD-35_obs}}
-{{wiki:examples:20200704_joyrad35_wind_profile.png?direct&400|JOYRAD-35_wind}} \\
-//Example time series of JOYRAD-35 observations (radar moments / horizontal wind)//
-Current observations at [[http://gop.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser2.html?site=JOYCE&date=-1&UpperLeft=Joyrad35_Overview&UpperRight=Joyrad35_wind_ppi|quicklook archive]]
 ===== Measurement modes =====
@@ Line 41: / Line 18: @@
   * Every 30 minutes one azimuth scan at 83° elevation angle with 6° azimuth resolution (duration ~2 minutes) for horizontal wind within clouds and the boundary layer (if sufficient insects are present)
-===== Calibrations =====
+===== Calibrations and data quality assurance procedures =====
-  * ???
-===== Data quality assurance procedures =====
   * Check with co-located disdrometer to find out reflectivity offsets
   * Consistency check with other cloud radars
-===== Available datasets =====
+===== Data availability =====
-The following data products are provided via Cloudnet with a temporal resolution of 30 seconds. If you would like to have additional data with better resolution or raw Doppler spectra {{ :joyce_data_request_form.pdf |data request sheet}} and send it to [[mailto:info@joyce.cloud|info@joyce.cloud]]
+Some of the following data products are provided via Cloudnet [[https://cloudnet.fmi.fi/|ACTRIS cloudnet website]] with a temporal resolution of 30 seconds. If you would like to have additional data with better resolution or raw Doppler spectra please fill the {{ :joyce_data_request_form.pdf |data request sheet}} and send it to [[mailto:info@joyce.cloud|info@joyce.cloud]]
-^ Dataset     ^ Temporal resolution       ^ File size          ^ Filename   ^ Retrieval   ^
+^ Dataset     ^ Temporal resolution       ^ File size          ^ Filename   ^ Remarks   ^
-| Radar reflectivity factor   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  |   |
+| Radar reflectivity factor   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  | available via Cloudnet   |
-| Doppler velocity   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  |   |
+| Doppler velocity   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  | available via Cloudnet   |
-| Spectral width   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  |   |
+| Spectral width   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  | available via Cloudnet    |
-| Linear depolarization ratio   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  |   |
+| Linear depolarization ratio   | 30 seconds    | 1 file per day (30-50 MB)     | //YYYYMMDD_juelich_categorize.nc//  | available via Cloudnet    |
-| Profiles of horizontal wind | 30 minutes | 1 file per day (30-50 MB)     | YYYYMMDD_joyrad35_wind_profile.nc |  |
+| Profiles of horizontal wind | 30 minutes | 1 file per day (30-50 MB)     | //YYYYMMDD_joyrad35_wind_profile.nc//  |  |
-| Doppler spectra  |    |   |   |  |
+| Radar moments  | 2 seconds   | variable size (up to 30 MB/hour in case of thick clouds)  | //YYYYMMDD_HHMM.mmclx.gz//  | zipped NetCDF file  |
+| Doppler spectra, Radar moments  | 2 seconds   | variable size (up to 2 GB/hour in case of thick clouds)  | //YYYYMMDD_HHMM.znc//  | NetCDF file  |
+| Doppler spectra  | 2 seconds   | variable size (up to 1 GB/hour in case of thick clouds)  | //YYYYMMDD_HHMM.zspc//  | Binary file  |
+===== Composite products using data from JOYRAD-35 =====
+  * **Dual-wavelength ratio** Ka/X-Band and Ka/W-Band [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser2.html?site=TRIPEX-pol&date=-1&UpperLeft=3radar_Ze&UpperRight=3radar_DWR|Link to Quicklooks]]
+  * **Cloudnet target classification** uses Radar moments data from JOYRAD-35. Combined with microwave radiometer and ceilometer observation, clouds are characterized by their geometrical extent as well as their microphysical properties. [[http://devcloudnet.fmi.fi/|Link to Cloudnet]]
+===== Link to current observations =====
+Data quicklooks can be found in the [[http://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser2.html?site=JOYCE&date=-1&UpperLeft=Joyrad35_Overview&UpperRight=Joyrad35_wind_ppi|JOYCE quicklook archive]] and in the [[https://guest.metek.de/skripts/animate_hourly_xcrl_skew.html?nic=juel|METEK archive]]
+===== Measurement examples =====
+{{wiki:examples:200704_jue_l2_radar.png?direct&400|JOYRAD-35_obs}}
+{{wiki:examples:20200704_joyrad35_wind_profile.png?direct&400|JOYRAD-35_wind}} \\
+//Example time series of JOYRAD-35 observations (radar moments / horizontal wind)//
-===== Composite products using data from JOYRAD-35=====
-  * **Dual-wavelength ratio** Ka/X-Band and Ka/W-Band [[http://gop.meteo.uni-koeln.de/~Hatpro/dataBrowser/dataBrowser2.html?site=TRIPEX-pol&date=-1&UpperLeft=3radar_Ze&UpperRight=3radar_DWR|Link to Quicklooks]]
-  * **Cloudnet target classification** uses Radar moments data from JOYRAD-35. Combined with microwave radiometer and ceilometer observation, clouds are characterized by their geometrical extent as well as their microphysical properties. Data are available via [[https://cloudnet.fmi.fi/|ACTRIS cloudnet website]]
 {{wiki:examples:20200704_juelich_classification.png?direct&800|Cloudnet_target_classification}} \\
 //Example time series of Cloudnet target classification//
+===== JOYRAD-35 History =====
+^  Period  ^  Place  ^  Project  ^
+| 2017 |  |  Instrument upgrade |
+| 09/03/2012 - today | [[http://www.fz-juelich.de/|Research Center Jülich]], Germany | JOYCE |
+| 08/11/2011 - 08/03/2012 | Munich Airport, Germany| iPort campaign |
+| 03/2011 - 07/11/2011 | [[http://www.fz-juelich.de/|Research Center Jülich]], Germany | JOYCE |
+{{:wiki:instruments:joyrad35_07.jpg?direct&600|JOYRAD-35 ©B. Pospichal}} \\
+//Cloud radar JOYRAD-35 installed at Jülich//