Meteorological Research Sites in Freiburg: COPS Region

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!

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

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

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

17. Possibilities for external instrumentation: