Meteo Observations at IGMK

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====== JOYCE ======



The **Jülich ObservatorY for Cloud Evolution** (JOYCE) is operated jointly by the [[http://www.geomet.uni-koeln.de/allgemein/home/|University of Cologne]], the [[https://www.fz-juelich.de/en|Research Centre Jülich]]. 

JOYCE is a national facility for Cloud Remote Sensing within the European Research Infrastructure [[https://www.actris.eu|ACTRIS]] since 2021. 

JOYCE was established in 2008 and was initially operated in the frame of the Transregional Collaborative Research Centre "Patterns in Soil-Vegetation-Atmosphere-Systems: Monitoring, Modelling and Data Assimilation" ([[http://tr32new.uni-koeln.de/|TR32]]). Today, JOYCE is part of the Cloud and Precipitation Exploration Laboratory ([[http://cpex-lab.de|CPEX-LAB]]), a competence centre within the [[http://www.geoverbund-abcj.de/|Geoverbund ABC/J]]. 


{{:joyce_drone.jpg?600|}}  {{:joyce_wolkenmessplatform01_bernahrd_pospichal.jpg?500|}}\\
//Left: Drone view of JOYCE platform, Right: View towards MIRA cloud radar with microwave radiometer in foreground//

===== Scientific Goals =====
JOYCE instrumentation aims to observe spatial and temporal variability of the atmospheric boundary layer as well as the water cycle. \\
Specific goals are  
  * to disentangle water vapor variations due to advection and to local surface influence 
  * to better understand the development of boundary layer clouds 
  * to analyse cloud radiation interaction
  * to observe precipitation formation 
 
===== Location =====


Most instruments are located on the roof of the Institute of Climate and Energy Systems - Troposphere (ICE-3) [[https://www.fz-juelich.de/en/ice/ice-3|IEK-8]] 
at the Research Centre Jülich which is embedded in an agricultural dominated landscape.

  * Latitude:  50°54'30.77" N = 50.908547°N
  * Longitude:  6°24'48.73" E =  6.413536°E
  * Altitude of the surroundings: 91 m asl
  * Altitude of JOYCE roof platform: 111 m asl (= 20 m above ground)
  * [[https://www.google.de/maps/place/50.9085833,6.4133333|Google maps link]]
  * [[http://atmos.meteo.uni-koeln.de/~hatpro/jue/img/ | Webcam]]
  * [[https://community.wmo.int/activity-areas/WIGOS/implementation-WIGOS/WIGOS-station-identifier | WIGOS ]]ID : 0-276-0-10508 

===== JOYCE Instruments =====
=== Microwave radiometers ===

  * [[https://obs.meteo.uni-koeln.de/doku.php?id=hatpro|Microwave Radiometer HATPRO]] - [[https://obs.meteo.uni-koeln.de/doku.php?id=tophat|TOPHAT]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=hatpro|Microwave Radiometer HATPRO]] - [[https://obs.meteo.uni-koeln.de/doku.php?id=joyhat|JOYHAT]]

=== Cloud radars ===
 
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=joyrad35|Cloud Radar JOYRAD-35 (Ka-Band)]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=joydurado|Cloud Radar JOYDURADO (Ka/W-Band)]]


=== Lidar/Ceilometer ===
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=ceilo|Ceilometer]]
    * [[https://obs.meteo.uni-koeln.de/doku.php?id=chm15k|Ceilometer Jenoptik/Lufft CHM15k]]
    * [[https://obs.meteo.uni-koeln.de/doku.php?id=ct25k|Ceilometer Vaisala CT25K]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=windlidar|Doppler wind lidar]]

=== Precipitation observations ===
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=mrr|Micro Rain Radar MRR]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=disdrometer|Disdrometer]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=pluvio|Pluviometer]]


=== Passive solar/infrared observations ===
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=aeri|Atmospheric Emitted Radiance Interferometer AERI]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=mfrsr|Multifilter Rotating Shadowband Radiometer MFRSR]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=tsi|Total Sky Imager TSI-AXIS]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=cimel|Sun photometer]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=radiation|Broadband radiation observations]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=pvm|Photovoltaic modules]]


=== Additional instrumentation ===
  * CPEX-Lab Polarimetric X-Band Precipitation Radar [[https://www.ifgeo.uni-bonn.de/abteilungen/meteorologie/messdaten/radarbilder/aktuelle-bilder/sophienhoehe-juelich|Sophienhöhe]] and [[https://www.ifgeo.uni-bonn.de/abteilungen/meteorologie/messdaten/radarbilder/aktuelle-bilder/komposit-regenraten|composite]] with Bonn
  * [[https://www.fz-juelich.de/de/gs/ueber-uns/meteo|Meteorology at 120 m tower of FZ Jülich]]

=== Previous instrumentation ===
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=joyrad10|Cloud Radar JOYRAD-10 (X-Band)]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=joyrad94|Cloud Radar JOYRAD-94 (W-Band)]]

===== Data availability =====
JOYCE provides a number of resources, which characterize the thermodynamic state of the atmospheric column including vertical profiles of temperarture, humidity and cloud macro- and microphysical properties as well as the aerosol loading. The data is freely accessible for scientific and educational purposes and may be obtained through direct contact to  [[bernhard.pospichal@uni-koeln.de| Bernhard Pospichal]].  \\




===== Quicklooks of products =====

[[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser3.html?site=JOYCE&date=-1&UpperLeft=JoyDuRad_35_overview&UpperRight=JOYHAT-T&LowerRight=JOYHAT-LWP|Quicklook browser]] \\
[[https://cloudnet.fmi.fi/search/visualizations|Quicklooks of Cloudnet processed measurements and products on Cloudnet database]] (select Location "Jülich" on the left)


===== Internal =====
[[sites:joyce:internal|enter here]]