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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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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

slide2

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

slide3

Hartheim experimental site:

Hartheim

Permanent site - Hartheim

slide4

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

slide5

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

slide6

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

slide7

Tuttlingen experimental sites:

Tuttlingen

Permanent sites - Tuttlingen

slide8

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

slide9

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

slide10

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

slide11

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

slide12

View from the sites at Tuttlingen

Thank you for your interest!

slide15

Scientific instrumentation available at Tuttlingen:

Experimental Design:

Permanent sites - Tuttlingen

slide16

View from the southwest oriented slope to SSW

View from the southwest oriented slope to NNW

Permanent site - Tuttlingen