===  Permanent forest meteorological experimental site Hartheim  ===
{{http://www.mif.uni-freiburg.de/proj/interreg/jpg/hartheim/Hartheim_Turm2005.jpg?250}}
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{{http://www.mif.uni-freiburg.de/proj/hartheim/Hartheim.pdf|further information (in German only)}}
==Coordinates==
7.6° E, 47.93° N, altitude: 201 m a.s.l.

==Operator==
Meteorological Institute, University of Freiburg\\
Prof. Dr. H. Mayer\\
Werderring 10, D-79085 Freiburg
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==Vegetation:==
adult trees: mainly //Pinus sylvestris// L., some patches //Pinus nigra// L.\\
Lower vegetation: Hardwood\\
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mean canopy height: 15.0 m\\
stand age: 43 y\\
stand density: 800 trees/ha\\
plant area index: 1.9 m<sup>2</sup>/m<sup>2</sup>\\
mean breast height diameter: 15.6 cm\\
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===Soil:===
soil type: sandy-silty Loam on gravel/sand\\
mean thickness of the surface layer: 40 cm (14-88 cm)\\
Density: 	1.0-1.4 g cm<sup>3</sup>\\
Field capacity: 31.4 vol.%\\
Wilting point: 11.7 vol.%\\

===Instrumentation:===
^component  ^  type of instrument  ^
^photosynthetically active radiation above the canopy  |  Li-190SZ (quantum sensor)/ Li-COR Biosciences GmbH, Lincoln, NE, USA  |
^photosynthetically active radiation below the canopy  |  Li-190SZ (quantum sensor, 2 levels) / Li-COR Biosciences GmbH, Lincoln, NE, USA  |
^short-wave radiative fluxes  |  CM21 (ventilated pyranometer) / Kipp&Zonen Inc., Delft, Netherlands  |
^long-wave radiative fluxes  |  CG4 (ventilated pyrgeometer) / Kipp&Zonen Inc. , Delft, Netherlands  |
^soil heat flux  |  HFP01SC, HFP01 (heat flux plate) / Hukseflux, Delft, Netherlands  |
^soil temperature  |  PT100 (6 levels) / Heraeus Sensor Technology, Kleinostheim, Germany  |
^soil moisture  |  CS615 (TDR) / Campbell Scientific Inc., Logan, Utah, USA  |
^air temperature, wet bulb temperature	aspirated psychrometers  |  PT100 (8 levels) / Heraeus Sensor Technology, Kleinostheim, Germany  |
^horizontal wind velocity  |  WAA151 (cup anemometer, 8 levels) / Vaisala GmbH, Helsinki, Finland  |
^wind direction  |  W200P (wind vane) / Vector Instruments  |
^wind components  |  CSAT3 (sonic anemometer) / Campbell Scientific Inc., Logan, Utah, USA  |
^concentrations of H<sub>2</sub>O and CO<sub>2</sub>  |  Li7500 (open path IRGA) / Li-COR Biosciences, Lincoln, NE, USA GmbH  |
^precipitation  |  ombrometer, pluviometer / Ott Hydrometrie, Kempten, Germany  |
^precipitation (throughfall)  |  rain gutter with tipping bucket gauge ARG100 / Campbell Scientific Inc., Logan, Utah, USA  |
^data acquisition  |  CR5000, CR23x, CR21x (datalogger) / Campbell Scientific Inc., Logan, Utah, USA  |
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==GOP-data==
^variable  ^measurement height  ^
|above canopy air temperature  |  1.5 h<sub>c</sub>=23 m  |
|below canopy air temperature  |  0.4 h<sub>c</sub>=6 m  |
|above canopy water pressure  |  1.5 h<sub>c</sub>=23 m  |
|below canopy water pressure  |  0.4 h<sub>c</sub>=6 m  |
|wind direction  |  2.0 h<sub>c</sub>=30 m  |
|precipitation  |  2.0 h<sub>c</sub>=30 m  |
|above canopy net radiation  |  1.2 h<sub>c</sub>=18 m  |
|above canopy incoming shortwave radiation  |  1.2 h<sub>c</sub>=18 m  |
|above canopy reflected shortwave radiation  |  1.2 h<sub>c</sub>=18 m  |
|above canopy incoming longwave radiation  |  1.2 h<sub>c</sub>=18 m  |
|above canopy emitted longwave radiation  |  1.2 h<sub>c</sub>=18 m  |
|soil temperature  |  -0.01 m; -0.03 m; -0.05 m; -0.10 m; -0.20 m; -0.40 m  |
|volumetric soil moisture content  |  average from 0.0 to -0.3 m  |