Forest Site

Precipitation (in database)

• Rimco 7499 rain gauge (placed on the top of the container in an elevation of approx. 3,4m) 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 at 30 m (automatic, 10 min. average)
• NRLite net radiometer (net radiation) at 2 m (automatic, 10 min. average)

2. Windspeed

• Gill ultrasonic anemometer at 38 m, measuring interval: 0-60 m/sec, (automatic, 10 Hz, 30 min. average)
• Cup anemometers at 2 m, 15 m, 30 m (automatic, 10 min. average)

3. Wind direction

• Gill ultrasonic anemometer at 38 m, measuring interval: 0-60 m/sec, (automatic, 10 Hz, 30 min. average)

4. Air temperature and humidity

• HMP 45 C (located on the mast at 15m and 30 m) (automatic, 10 min. average)

5. Soil temperature

• Sensors placed in the depths of 5cm, 10cm, and 20cm. (automatic, 10 min. average)

6. Soil heat flux

• Hukseflux plates at 5 cm depth (automatic, 10 min. average)

Fluxes (not in database)

Water vapour and CO2

• Li-Cor LI-7500 (open path) (sensor placed on the mast in an elevation of 38 m) (automatic, 10 Hz, 30 min. average)

Soil moisture (not in database)

• TDR system

Probe 21-25 (6cm-9cm) probe length 0,5m, installed horizontally
Probe 16-20 (0m-0,2m) probe length 0,2m, installed vertically
Probe 11-15 (0m-0,5m) probe length 0,5m, installed vertically
Probe 6-10 (0m-1m) probe length 1m, installed vertically
Probe 1-5 (1m-2m) probe length 1m, installed vertically

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

• 2 temperature profiles in the unsaturated zone, 24 sensors. Continuous logging.

Suction (not in database)

• 10 Decagon tensiometers. 2 probes in each 10, 20, 30, 40, and 50 cm depth.

Decagons sensors (not in database)

• 15 Decagon sensors (5TE) installed.
• ? Decagon sensors (5TE).

Water table (not yet in database)

• Two pipes established with pressure sensors.

Soil parameters (not yet in database)
Retention characteristics: 5 soil samples in each of 3 depth intervals down to 80cm. Lab analysis completed. Soil hydraulic conductivity: 5 soil columns in each of 3 depth intervals down to 80 cm. Lab analyses partly completed.

Other installations

• Container with power and lighting
• Lightning protection, mast has been earthed
• Video camera (placed on mast)
• UPS
• Server PC
• Hard disks (2TB in RAID5)
• Datalogger (Campbell 3000)
• 2 Dataloggers (Campbell 1000)
• PFI-relay (less sensitive)
• 3G internet connection
• Wireless internet

Pending installations

• Decagon automated sensors

Previous installations:

• Net precipitation (3 tipping bucket rain gauges connected to guttering under canopy) (automatic, sensitivity 0,03mm). (Not in database)
• Soil respiration & CO2 profile: Li-Cor LI-8100 gas analyzer + LI-8150 multiplexer (4 soil chambers placed around the mast and 4 gas inlets placed at 2m, 8m, 15m, 30m) (manual once/month, every 30 min.)
• Tree transpiration: TDP probes (Granier type) installed at 1.5 m above ground in 12 trees (2 probes per tree), resulting in 30 min. average transpiration rates. (Measurements completed, taken down).
• Remote Sensing sensors: Surface temperature and heat fluxes: 1 thermal sensor (Everest Enviro-Therm 4000L) observing the ground at 55 deg. off nadir.
• Remote Sensing sensors: NDVI and forest phenology: 1 Skye SKR 1800 sensor for measuring red and near-infrared radiance of the ground, placed at 55 deg. off nadir. 1 Skye SKR 1800 sensor measuring the incoming red and near-infrared irradiance.
• Canopy temperature profile: Infrared thermometers (in three different elevations) (IR-100).
• Canopy wetness: Leaf wetness sensors (237-L).

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