====== JOYCE ======
{{:sites:joyce:pano_juelich_640_ann.jpg?500|}}
[[:sites:joyce:qr-code|{{:sites:joyce:joyce_qr_code.png?80|joyce-qr-code}}]]


The **Jülich ObservatorY for Cloud Evolution** (JOYCE) is operated jointly by the [[http://www.geomet.uni-koeln.de/allgemein/home/|University of Cologne]], the [[http://www.fz-juelich.de/sid_50CF378098510D59D1AB0F010430BF4A/portal/DE/Home/home_node.html|Research Centre Jülich]]. JOYCE was originally operated in the frame of the Transregional Collaborative Research Centre "Patterns in Soil-Vegetation-Atmosphere-Systems: Monitoring, Modelling and Data Assimilation" ([[http://www.tr32.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]]. 

The official site is [[http://joyce.cloud]] or [[http://www.geomet.uni-koeln.de/index.php?id=1082&L=1]].

===== Scientific Goals =====
JOYCE instrumentation aims to observe spatial and temporal variability of atmospheric water cycle variables. {{ youtube>gcdeuluWWEQ?small}}\\
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 =====
[[http://maps.google.de/maps?f=q&hl=de&geocode=&q=50.908547,6.413537(HATPRO%40FZ+J%C3%BClich)&ie=UTF8&ll=50.908547,6.413537&spn=0.002496,0.004828&t=h&z=18&iwloc=addr|{{ :sites:joyce:joyce_landuse.png?300}}]]

Most instruments are located on the roof of the Institute for Energy and Climate Research - Troposphere [[https://www.fz-juelich.de/de/iek/iek-8"|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: 111 m asl (20 m above ground)
  * [[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=hatpro|TOPHAT]]

=== Cloud radars ===
  * [[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=joyrad35|Cloud Radar JOYRAD-35 (Ka-Band)]]
  * [[https://obs.meteo.uni-koeln.de/doku.php?id=joyrad94|Cloud Radar JOYRAD-94 (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]]


===== 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]].  \\

If you use JOYCE data in publications, please use following phrase in the acknowledgement: \\

"//JOYCE data were provided by the Cloud and Precipitation Exploration Laboratory (CPEX-LAB, http://cpex-lab.de), a competence centre within the Geoverbund ABC/J.//" 

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

[[http://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser4.html?site=JOYCE&date=-1&UpperLeft=Ceilo_ct25k_Backscatter&UpperRight=Tophat_IWV-LWP&LowerRight=MRR_IMProToo&LowerLeft=Tophat_T-Prof|Quicklook browser]] \\
[[https://cloudnet.fmi.fi/search/visualizations|Quicklooks of Cloudnet processed measurements and products on Cloudnet database]] (select Jülich on the left)


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