Meteo Observations at IGMK

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====== University of Cologne instruments at AWIPEV ======

**Contact: [[kerstin.ebell@uni-koeln.de|Kerstin Ebell]]**

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[[https://www.awipev.eu/|AWIPEV]] is the French-German Arctic Research Base operated by the Alfred Wegener Institute for Polar and Marine Research [[http://www.awi.de/|(AWI)]] and the French Polar Institute Paul Emile Victor [[http://www.institut-polaire.fr/language/en/|(IPEV)]]. AWIPEV is part of the [[https://nyalesundresearch.no/|Ny-Ålesund Research Station]]. Within the Transregional Collaborative Research Centre TR 172 "ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)³" ([[http://ac3-tr.de|(AC)³]]), the University of Cologne collaborates with AWI in the long-term observations at the Atmospheric Observatory. \\
Ny-Ålesund is located on the northwest coast of Svalbard, on the south side of Kongsfjorden. The area is mountainous, featuring seasonal snow cover, a typical tundra system, and glaciers. 
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Except for the Pluvio (location B in map), the instruments of the University of Cologne are located on the roof of the AWIPEV Atmospheric Observatory (location A in map). The coordinates of the AWIPEV atmospheric observatory are
  * Latitude:  78° 55' 22.8" N = 78.92327 °N
  * Longitude: 11° 55' 15.6" E =  11.92216 °E
  * Altitude:  11 m asl (ground) + 8 m (height of roof platform)

===== Scientific Goals =====
Within (AC)³, researchers at the University of Cologne, University Bremen, and AWI characterize the thermodynamic structure, clouds, aerosols, and trace gases in the atmospheric column at Ny-Ålesund on a long-term basis. In Cologne, the research focus is on remote sensing of the thermodynamic structure, water vapor, cloud macro- and microphysical properties and precipitation by combining the established observations at AWIPEV and Uni Cologne instrumentation, e.g., a cloud radars, micro rain radar.  
The ground-based observations at Ny-Ålesund are accompanied by satellite, aircraft, and ship measurements, as well as modeling studies on various scales.

Specific scientific questions are  
  * To what extent and with which accuracy can we gain insight into the thermodynamic, trace gas, aerosol, and cloud macro- and microphysical properties at Ny-Ålesund?
  * What is their impact on the radiation and energy budget throughout the vertical extent from the surface to the lower mesosphere?
  * How do Arctic low-level clouds respond to global climate change?
  * How representative are the Ny-Ålesund observations across other Arctic sites?
 

===== Publications =====

A list of the project related publications can be found [[https://geomet.uni-koeln.de/forschung/gruppe-crewell/arctic-ground|here]].

===== Data quicklook browser =====

[[http://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser2.html?site=Ny-Alesund&date=-1&UpperLeft=Joyrad94_Overview&UpperRight=CL51_Backscatter|Quicklook browser for data of University of Cologne and selected AWIPEV instrumentation]]

===== Overview of instruments =====

If you are interested in data, please contact **[[kerstin.ebell@uni-koeln.de|Kerstin Ebell]]**

^ Instrument  ^ Time of operation  ^ Measurements  ^ Related Products ^
| [[joyrad94|JOYRAD94 94 GHz cloud radar]]    [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser1.html?site=Ny-Alesund&date=0&UpperLeft=Joyrad94-Overview|Quicklooks]] | 10 Jun 2016–26 Jul 2017  | Doppler spectrum moments, Doppler spectrum, 89 GHz brightness temperature | vertical cloud and precip structure, Cloudnet hydrometeor classification and cloud microphysical products |
|  | 14 Jun 2019–22 Jun 2022  | | |
|  | 02 Jun 2023– ongoing  | | |
| [[mirac|MiRAC-A 94 GHz cloud radar]]     [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser1.html?site=Ny-Alesund&date=2023-03-02&UpperLeft=MiRAC-A_Overview|Quicklooks]]| 28 Jul 2017–08 Oct 2018 | Doppler spectrum moments, Doppler spectrum | vertical cloud and precip structure, Cloudnet hydrometeor classification and cloud microphysical products | 
|  | 23 Jun 2022–03 Mar 2023  | | |
| NYRAD35 35 GHz cloud radar | 01 Oct 2021–06 Mar 2024  | Doppler spectrum moments, Doppler spectrum, polarimetric variables | in combination with 94 GHz cloud radar, info on ice habit, particle concentration and sizes | 
|  | 25 Jan 2025–ongoing  | | |
| [[grawac|GRaWAC 167.3/174.7 GHz cloud radar]]   \\ [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser1.html?site=Ny-Alesund&date=2025-03-03&UpperLeft=GRaWAC_Overview|Quicklooks]] | 25 Jan 2025–04 Mar 2025  | Doppler spectrum moments, Doppler spectrum | water vapor profiles in cloudy and precipitating conditions |
| [[mrrnya|Micro Rain Radar]] \\ [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser1.html?site=Ny-Alesund&date=0&UpperLeft=MRR-IMProToo | Quicklooks]]| 27 Apr 2017–ongoing  | Doppler spectrum moments, Doppler spectrum of precipitating particles | snowfall and rainfall rates |
| [[parsivelnya|Parsivel]] \\ [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser1.html?site=Ny-Alesund&date=0&UpperLeft=Parsivel-Overview | Quicklooks]] | 29 Apr 2017–22 Jun 2022  | Precipitation particle size distribution and fall velocities | Precipitation type, rain rate (for liquid precip) |
| [[parsivelnya|Parsivel]] (new instrument) \\ [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser1.html?site=Ny-Alesund&date=0&UpperLeft=Parsivel-Overview | Quicklooks]] | 23 Jun 2022–ongoing  | Precipitation particle size distribution and fall velocities | Precipitation type, rain rate (for liquid precip) |
| [[pluvionya|Pluvio]] \\ [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser2.html?site=Ny-Alesund&date=0&UpperLeft=Parsivel-Pluvio-MRR-Precipitation-Rate&UpperRight=Parsivel-Pluvio-MRR-Accumulated-Precipitation|Quicklooks]] | 02 Aug 2017–13 Nov 2024 | Precipitation amount/intensity | |
| [[pluvionya|Pluvio]] (new instrument) \\ [[https://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser2.html?site=Ny-Alesund&date=0&UpperLeft=Parsivel-Pluvio-MRR-Precipitation-Rate&UpperRight=Parsivel-Pluvio-MRR-Accumulated-Precipitation|Quicklooks]] | 21 Oct 2025–ongoing  | Precipitation amount/intensity | |


===== Acknowledgements =====
We gratefully acknowledge the funding by the Deutsche Forschungsgemeinschaft DFG712 (German Research Foundation) - project number 268020496 - TRR 172, within the Transregional Collaborative Research Center “ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)3”. We deeply thank the AWIPEV station team for technical support, maintenance, and operation of the instruments within the project AWIPEV_0016.