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PI: Prof. Helmut Mayer Meteorological Institute University of Freiburg Werderring 10

Permanent Forest Meteorological sites of the Meteorological Institute of the University of Freiburg within the COPS region. Thomas Holst, Jutta Rost. PI: Prof. Helmut Mayer Meteorological Institute University of Freiburg Werderring 10 D-79085 Freiburg phone: +49-761-203-3591

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PI: Prof. Helmut Mayer Meteorological Institute University of Freiburg Werderring 10

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  1. Permanent Forest Meteorological sites of the Meteorological Institute of the University of Freiburg within the COPS region Thomas Holst, Jutta Rost PI: Prof. Helmut Mayer Meteorological Institute University of Freiburg Werderring 10 D-79085 Freiburg phone: +49-761-203-3591 Helmut.Mayer@meteo.uni-freiburg.de Thomas.Holst@meteo.uni-freiburg.de

  2. Our contributions to COPS & GOP: • Hartheim field site: • Energy balance of a Pine Forest in the Rhine plain near Freiburg • Tuttlingen field sites: • Energy balance components on opposite slopes of a valley • SODAR system (Scintec FAS64) Tuttlingen sites Hartheim site

  3. Hartheim experimental site: Hartheim Permanent site - Hartheim

  4. Hartheim Pine forest Hartheim site 500 m Bremgarten air field Google Earth • Site characteristics • situated in the Rhine valley • ca. 25 km S of Freiburg • flat terrain, between Vosges and Black Forest • measurements since 1969 • Vegetation • Pine forest, planted in 1963 • mean stand height (2004): 14.7 m • stand density (2003): 800 trees ha-1 • PAI (2004): 1.77 m² m-2 Permanent site - Hartheim

  5. Technical infrastructure available at Hartheim: • 2 research towers (30 m and 19 m) with platforms • distance between towers ca. 40 m • power supply (380 V, 240 V) • telephone line • 20 ft. office container 19 m tower 30 m tower at Hartheim Permanent site - Hartheim

  6. Scientific instrumentation at Hartheim: • Flux measurements • open path flux system (H, LE, FCO2) • Water balance • precipitation / stand precipitation • soil moisture (TDR) • Available energy • net radiation components above the stand • soil heat flux • canopy storage term • Profile measurements • air temperature and humidity (8 levels) • wind velocity (8 levels) • soil temperature profile (up to 40 cm depth) Permanent site - Hartheim

  7. Tuttlingen experimental sites: Tuttlingen Permanent sites - Tuttlingen

  8. Tuttlingen SW-slope NE-slope 1000 m N • Site characteristics • situated in the Swabian Jura • ca. 100 km S of Stuttgart • complex terrain, 2 opposite slopes (27°) • measurements since 1999 SW-slope NE-slope • Vegetation • Beech forest, 80 yrs old • mean stand height: ca. 27 m • 3 plots per slope, 0.5 ha each • 3 stand densities: 550, 275, 150 trees ha-1 • PAI: 5.2, 3.5, 2.0 m² m-2 Permanent sites - Tuttlingen

  9. Technical infrastructure available at Tuttlingen: • 2 research towers (42 m) with platforms (NE, SW) • 4 meteorological stations (2 NE, 2 SW) • distance between towers ca. 800 m • power supply (380 V, 240 V) • power supply (380 V, 240 V) available in the valley • 10 ft. office container meteorological station 42 m tower at Tuttlingen Permanent sites - Tuttlingen

  10. Scientific instrumentation at Tuttlingen: • Water balance • precipitation / stand precipitation • soil moisture (TDR) • Available energy • net radiation components above the stand • soil heat flux • canopy storage term • Profile measurements • air temperature and humidity (5 levels) • wind velocity (5 levels) • soil temperature profile (up to 40 cm depth) Permanent sites - Tuttlingen

  11. Sodar Flat Array SODAR (Scintec FAS64): • range: typically up to 700 m (20-1000 m) • vertical resolution: typically 20 m (10-250 m) • temporal resolution: typically 30 min (1-60 min) • frequency range: 1650 to 2750 Hz • data output: u, v, w, su, sv, sw • power requirements: • 240 V or • 12 V ( max. 8 A ) SODAR at Hartheim (2002/2003) SODAR at Tuttlingen (2002) Flat Array SODAR

  12. View from the sites at Tuttlingen Thank you for your interest!

  13. Scientific instrumentation available at Hartheim: Permanent site - Hartheim

  14. Scientific instrumentation available at Tuttlingen: Experimental Design: Permanent sites - Tuttlingen

  15. View from the southwest oriented slope to SSW View from the southwest oriented slope to NNW Permanent site - Tuttlingen

  16. Possibilities for external instrumentation:

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