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instruments:tower:tower [2016/09/13 17:28] – [Instrument] janinstruments:tower:tower [2022/09/22 12:52] (current) – [Principle] jan
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 ====== Meteorological Tower ====== ====== Meteorological Tower ======
-//Mentor: [[http://www.geomet.uni-koeln.de/en/the-institute/rg-crewell/staff-crewell/schween/|J.H. Schween]] //+ 
 +//Mentor: [[http://www.geomet.uni-koeln.de/das-institut/mitarbeiter/schween/|J.H. Schween]]//
  
 ===== Principle ===== ===== Principle =====
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 The tower is located in the northwest of the Jülich Research Center and surrounded by 20 m high forest. The instrumentation allows measurements of wind velocity, temperature and humidity in 8 heights, wind direction in 3 heights and radiation in two heights to provide the local information on wind, air temperature, relative humidty, radiation, and air pressure. Additionally precipitation is registered at ground level. The tower is located in the northwest of the Jülich Research Center and surrounded by 20 m high forest. The instrumentation allows measurements of wind velocity, temperature and humidity in 8 heights, wind direction in 3 heights and radiation in two heights to provide the local information on wind, air temperature, relative humidty, radiation, and air pressure. Additionally precipitation is registered at ground level.
  
-For more information refer to the [[http://www.fz-juelich.de/gs/DE/UeberUns/Organisation/S-U/Meteorologie/wetter/wstation_node.html|webpage at the research center Juelich]].+For more information refer to the [[https://www.fz-juelich.de/de/gs/ueber-uns/meteo/aktuelle-wetterdaten/wetterdaten|webpage at the research center Juelich]].
  
  
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 ===== Data ===== ===== Data =====
-* If you are interested in receiving data please contact the instrument mentor: // [[http://www.geomet.uni-koeln.de/en/the-institute/rg-crewell/staff-crewell/schween/|J.H. Schween]]// +  * If you are interested in receiving data please contact the instrument mentor: // [[http://www.geomet.uni-koeln.de/en/the-institute/rg-crewell/staff-crewell/schween/|J.H. Schween]]// 
- +  * Recent plots can be found in the  [[http://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser4.html?site=JOYCE&date=2016-10-18&UpperLeft=FZJ-Meteo_Temperature&UpperRight=FZJ-Meteo_Wind-Speed&LowerRight=FZJ-Meteo_Precipitation&LowerLeft=FZJ-Meteo_absolute_Humidity|Quicklook archive]]
-* Recent plots can be found in the  [[http://gop.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser4.html?site=JOYCE&date=2014-12-18&UpperLeft=FZJ-Meteo_Temperature&UpperRight=FZJ-Meteo_Wind-Speed&LowerRight=FZJ-Meteo_Precipitation&LowerLeft=FZJ-Meteo_absolute_Humidity|Quicklook archive]]+
  
  
 Examples of latest available measurements (typically the last week Friday to Thursday): Examples of latest available measurements (typically the last week Friday to Thursday):
  
-{{http://gop.meteo.uni-koeln.de/~hatpro/jue/met/T_air.png?200|T_air}} +[[http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/#T_air|{{http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/T_air.png?200|T_air}}]] 
-{{http://gop.meteo.uni-koeln.de/~hatpro/jue/met/RH.png?200|RH}} +[[http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/#RH|{{http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/RH.png?200|RH}}]] 
-{{http://gop.meteo.uni-koeln.de/~hatpro/jue/met/wind.png?200|Wind}}+[[http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/#wind|{{http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/wind.png?200|Wind}}]] 
 +[[http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/#ani_prof|{{http://atmos.meteo.uni-koeln.de/~hatpro/jue/met/ani_prof.gif?200|Wind}}]] 
 + 
 +From Left to right: Temperature (red), humidity (green), wind (right, blue) and profiles (animation) measured at different heights (i.e. 2, 10, 20, 30, 50, 80, 100, 120m), the brighter the color the higher up. The Animation shows profiles of Temperature (thick red line), Wind (thick blue line) and water vapor mixing ratio (thick green line), fits of profiles according to Monin Obukhov theory (thin lines) as well as up (green boxes on the right) and downwelling (red) and net radiative fluxes (blue). Click on the plots to see more. 
  
-Temperature (left), humidity (middle) and wind (right) measured at different heights (i.e. 2, 10, 20, 30, 50, 80, 100, 120m) the brighter the color the higher up. 
  
  
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 ===== History ===== ===== History =====
  
-We have data available from 1.1.2006. Nevertheless measurements go back to 1961 and the [[http://www.fz-juelich.de/gs/DE/UeberUns/Organisation/S-U/Meteorologie/klima/statistik_node.html|website at Juelich]] provides Climate diagrams etc. (in German).+We have data available from 1.1.2006. Nevertheless measurements go back to 1961 and the website at Juelich provides [[https://www.fz-juelich.de/de/gs/ueber-uns/meteo/klimastation|Climate data, diagrams, 'meteograms' etc.]] (in German).
  
  
 ===== Specifications ===== ===== Specifications =====
  
-^ Parameter  ^ Instrument Remark  ^ +^ Parameter  ^ Instrument height(s)  ^ 
-| Temperature   | ventilated Psychrometer   | 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m  | +| Temperature   | ventilated pt100  | 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m  | 
-| Humidity ventilated Psychrometer   | 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m  | +Relative Humidity Hair Hygrometer \\ (800 L0-100, [[http://www.lambrecht.net/en/home|Lambrecht, Göttingen, Germany]]) | 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m  | 
-| wind speed   | cup anemomemter   | 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m  | +| wind speed   | cup anemomemter\\ (Lisa, [[http://www.siggelkow-gmbh.homepage.t-online.de/|Sigelkow, Hamburg, Germany]])((bankrupt in 2012 - see [[https://www.wmo.int/pages/prog/www/IMOP/publications/IOM-109_TECO-2012/Session1/P1_08_GonzalezSotelino_intercomp_anemometers_UCCLE.pdf|this wmo report]]))  | 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m  | 
-| wind direction   | wind vane   | 3 heights: 30, 50, 120m  | +| wind direction   | wind vane\\ (Rita, [[http://www.siggelkow-gmbh.homepage.t-online.de/|Sigelkow, Hamburg, Germany]])  | 3 heights: 30, 50, 120m  | 
-Downwelling radiation   broadband radiometer   | 2 heights30, 120m  | +up- and downwelling radiation   Pyrradiometer\\ (8111, [[http://www.schenk.co.at/|Schenk]], Vienna, Austria)   | 2 heights: 30, 120m  | 
-| upwelling radiation   | broadband radiometer   | 2 heights: 30, 120m  | +| Pressure   Barometer\\ (5002.0000, [[http://www.th-friedrichs.de/|Th. Friedrichs]], Schenefeld, Germany)   | at foot of tower, 2m  | 
-| Pressure   | :-)   | at foot of tower  | +| Precipiation   Ombrometer\\ ([[https://thiesclima.com/|Thies Clima]], Göttingen, Germany)   | at foot of tower, 1m  |
-| Precipiation   tipping bucket   | at foot of tower  |+
  
  
instruments/tower/tower.1473780520.txt.gz · Last modified: 2016/09/13 17:28 by jan