Water and Environmental Research Center

Station Summary

Site Name: Lower Itkillik River Hydrometeorologic Station (DUS4)

Location:

Coordinates:

Elevation:

Note:

Site Commissioned:

Sensor Details

• Images: CC640 Digital Camera (2)
  • Image Trigger Interval: 30-minutes
  • Image Retrieval Interval: One every hour
• Air Temperature: HMP45C Vaisala AT/RH sensor
  • RH Accuracy @20°C: 62% RH ( 0-90%), 63% RH (90-100%)
  • Temperature Accuracy: 60.2°C at 20°C; 60.4°C at -40°C
  • Operating Range: -40°C to +60°C
  • RH Range: 0 to 100%
  • Installation: In 12-gill radiation shield, non-aspirated
  • Height: 2 meters (6.6 feet)
  • Output Units: °C
  • Scan Interval: 60 seconds
• Barometric Pressure : CSI Model CS106 Vaisala PTB110 Barometer
  • Installation: inside the datalogger enclosure
  • Height: about 1.5 m
  • Output Units: hPa (mb)
  • Scan Interval: Hourly
• Water Level : Aquistar SDI12 Water Level Sensor (15 and 5 psi-gauge pressure + temperature)
  • Resolution: 16 bit,
  • Accuracy: ± 0.06% FSO (typical)
  • Operating Range: -5° C to 70° C
  • Installation:
• Summer Precipitation: Texas Electronics TE525MM (Tipping Bucket Gauge)
  • Resolution (1 Tip) : 0.004 in (0.1 mm)
  • Accuracy: ±1% at rates up to 1"/hr
  • Installation: wind shield
  • Height: 1 m
• Snow Depth: Campbell Scientific SR50 (sonic ranging sensor)
  • Operating Range: 0.5 to 10 meters
  • Resolution: 0.1 mm
  • Accuracy: to 1 cm or 0.4 percent of distance to target
  • Installation: Point straight down on a flat surface
  • Height: ~1.5 m
• Net Radiation: Kipp and Zonen NR-Lite
  • Installation: Orient to south to minimize shadow effect from pole.
  • Accuracy: Varies with temperature, wind speed and sensor symmetry
  • Height: ~1 m
• Soil Temperature (ST1,ST2,ST3) GWS YSI Series 44033 (Thermistors)
  • Depths: <1cm (surface), at top of soil interface, 3 thermistors
• Datalogger: Campbell Scientific CR1000
  • Operating Temperature Range: -55°C to +85°C
• Radio: Freewave FGR-115RC
  • Frequency: 900 MHz Spread Spectrum