Meadow Site

 

Precipitation (in database)

  • Rimco 7499 rain gauge (located approx. 30-40 m from the mast in an elevation of 1.5 m) data resolution: 0.2mm/tip, collection area 324cm2, (automatic)


Climatic Variables (in database)

 

1. Solar radiation

  • NR01 – net-radiometer. Located on the mast. In- and outgoing long- and shortwave radiation (automatic, 10 min. average)


2. Windspeed

  • Gill ultrasonic anemometer (located on the mast in an elevation of 7m above the meadow) measuring interval: 0-60 m/sec (automatic, 10 Hz, 10 min. and 30 min. average)


3. Wind direction

  • Gill ultrasonic anemometer (located on the mast in an elevation of 7m above the meadow) measuring interval: 0-60 m/sec (automatic, 10 Hz, 10 min. and 30 min. average)


4. Air temperature and humidity

  • HMP 45 C (located on the mast in an elevation of 5m above the meadow) (automatic, 10 min. average)


5. Soil temperature

  • Sensors placed in the depths of 5cm, 10cm, and 20cm, ca. 50 m from the mast. (automatic, 10 min. average)


6. Soil heat flux

  • Hukseflux plates at 5 cm depth, placed ca. 50 m from the mast. (automatic, 10 min. average)


Fluxes (not in database)

 

1. Water vapour and CO2

  • Li-Cor LI-7500 (open path) (sensor placed on the mast in an elevation of 7 m) (automatic, 10 Hz, 30 min. average)
  • Li-Cor LI-7000 (closed path) tube inlet placed at 7 m. (automatic, 10 Hz, 30 min. average)


2. CH4-flux (Not in database)

  • Los Gatos DLT-100 (tube inlet placed at 7 m.) (automatic, 10 Hz, 30 min. average)
  • Vacuum pump


Soil moisture (not in database)

 

  • TDR-system

Probe 1-20 (4 horizontal probes in the depths of 20cm, 40cm, 60cm, 80cm, and 1m)
Probe 21-24 (75cm probes)
Probe 25 (1m “groundwater-level-probe”)
Probe 26-29 (surface probes, depth 20cm, vertical)
Probe 30-33 (surface probes, depth 5cm, horizontal, probe lengths 20cm)

  • 10 Decagon sensors (5TE) at 5 cm depth (logging every 30 min. connected to datalogger) Check Eline.


Suction (not in database)

  • 6 Decagon tensiometers to be installed. Who is the owner?


Water table (not in database)

  • Two wells established (one equipped with pressure transducer) (one with a special TDR probe)


Soil parameters (not in database)
Retention characteristics: 5 soil samples in each of 3 depth intervals down to 70 cm. Lab analyses completed. Soil hydraulic conductivity: 5 soil columns in each of 2 depth intervals down to 60 cm. Lab analyses not completed.

Other installations

  • Instrument shed with power, lighting, and ventilation.
  • High speed optical fibre internet connection
  • Server PC
  • Datalogger (Campbell 3000)
  • Harddisks, 2TB
  • PFI-relay (less sensitive than initial relay)
  • Video camera (placed on the mast)


Pending installations

  • Decagon automated sensors

 

Previous installations:

Decagon sensors: 5 Decagon sensors (5TE).

 

Click here for map and photos of the Meadow site.


Download Google Earth Placemark.

 

Video pending....
Inauguration of the site
June 3rd 2008
PhD-student Rasmus Ringgaard talks about the installation



The Mast at the Meadow Site in Skjern Enge.

 

Panorama at the Meadow Site in Skjern Enge.

 

 

Copyright © 2017 HOBE - Center for Hydrology - Hydrological Observatory. All Rights Reserved.
Joomla! is Free Software released under the GNU General Public License.