Meteorological Institute Faculty of Forest and Environmental Sciences Permanent Forest Meteorological sites of the Meteorological Institute of the University.

Meteorological InstituteFaculty 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-79085 Freiburg

phone: +49-761-203-3591

[email protected]

Thomas Holst, Jutta Rost

[email protected]


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


Hartheim experimental site:

Hartheim

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


Technical infrastructure available at Hartheim:

30 m tower at 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


Scientific instrumentation at 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, FCO2)

Profile measurements

• air temperature and humidity (8 levels)

• wind velocity (8 levels)

• soil temperature profile (up to 40 cm depth)


Tuttlingen experimental sites:

Tuttlingen

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

NE-slope

SW-slope


Technical infrastructure available at Tuttlingen:

42 m tower at 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


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)


Flat Array SODAR (Scintec FAS64):

Flat Array SODAR

• 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, u, v, w

• power requirements:

• 240 V or

• 12 V ( max. 8 A )

Sodar

SODAR at Tuttlingen (2002)SODAR at Hartheim (2002/2003)


View from the sites at Tuttlingen

Thank you for your interest!



company type

air temperature, humidity Ta, RHaspirated psychrometers (pt100)

wind velocity U Vaisala WAA151

H2O and CO2-fluctuations cH2O, cCO2 LiCOR Li7500

3d-wind components u,v,w Campbell csat3

short-wave radiation components

K, K Kipp&Zonen CM21

long-wave radiation components

L, L Kipp&Zonen CG4

photosynthetically active radiation

PAR, PAR LiCOR Li190

soil temperature Tg Pt100

heat flux plates G Hukseflux HFP01, HFP01SC

precipitation Nf, Nt+dOmbrometer, pluviometer, ARG100

soil moisture 2x in 30 cm depth

BF Campbell CS615


Scientific instrumentation available at Hartheim:


Experimental Design: company type

air temperature, humidity Ta, RH Vaisala HMP45D

wind velocity U Vaisala WAA151

wind direction dir Vector Instr. W200P

short-wave radiation components

K, K Kipp&Zonen CM21

long-wave radiation components

L, L Kipp&Zonen CG1

photosynthetically active radiation

PAR LiCOR Li190

soil temperature Tg Pt100

heat flux plates G Hukseflux HFP01

precipitation Nf, Nt+d ARG100

soil moisture (4 on each slope integrating from 0-30 cm depth)

BF Campbell CS615


Scientific instrumentation available at Tuttlingen:


View from the southwest oriented slope to SSW

View from the southwest oriented slope to NNW

Permanent site - Tuttlingen


Possibilities for external instrumentation:

Hartheim Tuttlingen

Power supply 380 V (240 V) 380 V (240 V) - on each slope380 V (240 V) - valley floor

Shelter/container yes yes - 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 m ca. 800 m

phone yes no

Meteorological Institute Faculty of Forest and Environmental Sciences Permanent Forest Meteorological sites of the Meteorological Institute of the University.

Documents

hartheim field site

meteorological stations

black forest measurements

vegetation beech forest

n tuttlingen

depth slide

office container slide

stand density