Meteorological Institute Faculty of Forest and Environmental Sciences Permanent Forest Meteorological sites of the Meteorological Institute of the University of Freiburg within the COPS region PI: Prof. Helmut Mayer Meteorological Institute University of Freiburg Werderring 10 D Freiburg phone: Thomas Holst, Jutta Rost

Meteorological Institute Faculty of Forest and Environmental Sciences 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

Meteorological Institute Faculty of Forest and Environmental Sciences Hartheim experimental site: Hartheim Permanent site - Hartheim

Meteorological Institute Faculty of Forest and Environmental Sciences Permanent site - Hartheim Google Earth 500 m Hartheim site Hartheim Pine forest Bremgarten air field 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 Site characteristics situated in the Rhine valley ca. 25 km S of Freiburg flat terrain, between Vosges and Black Forest measurements since 1969

Meteorological Institute Faculty of Forest and Environmental Sciences Technical infrastructure available at Hartheim: 30 m tower at Hartheim Permanent site - Hartheim 19 m tower 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

Meteorological Institute Faculty of Forest and Environmental Sciences Scientific instrumentation at Hartheim: Permanent site - Hartheim Available energy net radiation components above the stand soil heat flux canopy storage term Water balance precipitation / stand precipitation soil moisture (TDR) Flux measurements open path flux system (H, LE, F CO2 ) Profile measurements air temperature and humidity (8 levels) wind velocity (8 levels) soil temperature profile (up to 40 cm depth)

Meteorological Institute Faculty of Forest and Environmental Sciences Tuttlingen experimental sites: Tuttlingen Permanent sites - Tuttlingen

Meteorological Institute Faculty of Forest and Environmental Sciences Permanent sites - Tuttlingen Site characteristics situated in the Swabian Jura ca. 100 km S of Stuttgart complex terrain, 2 opposite slopes (27°) measurements since 1999 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 N Tuttlingen 1000 m SW-slope NE-slope SW-slope

Meteorological Institute Faculty of Forest and Environmental Sciences Technical infrastructure available at Tuttlingen: 42 m tower at Tuttlingen Permanent sites - Tuttlingen meteorological station 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 Institute Faculty of Forest and Environmental Sciences Scientific instrumentation at Tuttlingen: Permanent sites - 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)

Meteorological Institute Faculty of Forest and Environmental Sciences Flat Array SODAR (Scintec FAS64): Flat Array SODAR range: typically up to 700 m ( m) vertical resolution: typically 20 m ( m) temporal resolution: typically 30 min (1-60 min) frequency range: 1650 to 2750 Hz data output: u, v, w,  u,  v,  w power requirements: 240 V or 12 V ( max. 8 A ) Sodar SODAR at Tuttlingen (2002)SODAR at Hartheim (2002/2003)

Meteorological Institute Faculty of Forest and Environmental Sciences View from the sites at Tuttlingen Thank you for your interest!

Meteorological Institute Faculty of Forest and Environmental Sciences

Meteorological Institute Faculty of Forest and Environmental Sciences companytype air temperature, humidityTa, RH aspirated psychrometers (pt100) wind velocityUVaisalaWAA151 H 2 O and CO 2 -fluctuationsc H2O, c CO2 LiCORLi7500 3d-wind componentsu,v,wCampbellcsat3 short-wave radiation components K, K Kipp&ZonenCM21 long-wave radiation components L, L Kipp&ZonenCG4 photosynthetically active radiation PAR, PAR  LiCORLi190 soil temperatureTgTg Pt100 heat flux platesGHuksefluxHFP01, HFP01SC precipitationN f, N t+d Ombrometer, pluviometer, ARG100 soil moisture 2x in 30 cm depth BFCampbellCS615 Permanent site - Hartheim Scientific instrumentation available at Hartheim:

Meteorological Institute Faculty of Forest and Environmental Sciences Experimental Design: companytype air temperature, humidityTa, RHVaisalaHMP45D wind velocityUVaisalaWAA151 wind directiondirVector Instr.W200P short-wave radiation components K, K Kipp&ZonenCM21 long-wave radiation components L, L Kipp&ZonenCG1 photosynthetically active radiation PARLiCORLi190 soil temperatureTgTg Pt100 heat flux platesGHuksefluxHFP01 precipitationN f, N t+d ARG100 soil moisture (4 on each slope integrating from 0-30 cm depth) BFCampbellCS615 Permanent sites - Tuttlingen Scientific instrumentation available at Tuttlingen:

Meteorological Institute Faculty of Forest and Environmental Sciences View from the southwest oriented slope to SSW View from the southwest oriented slope to NNW Permanent site - Tuttlingen

Meteorological Institute Faculty of Forest and Environmental Sciences Possibilities for external instrumentation: HartheimTuttlingen Power supply380 V (240 V)380 V (240 V) - on each slope 380 V (240 V) - valley floor Shelter/containeryesyes - on each slope Platform dimension on tower top ca. 2 x 2 m (height: 19 m) ca. 2.5 x 1.2 m (height: 30 m) 1.4 x 1.4 m (height: 42 m – on each slope) Distance between the towers ca. 40 mca. 800 m phoneyesno