Water and Environmental Research Center

Station Summary

Site Name: Itikmalakpak Met Station (DUM1)

Location: Itikmalakpak R. area, upper Anaktuvuk basin

Coordinates: 68.29008, -151.11500 (WGS 84)

Elevation: 1168 m

Sensor Details

• Images: CC640 Digital Camera
  • Image Trigger Interval : 30-minutes
  • Image Retrieval Interval : One every hour
• Wind Speed: RM Young 05103-L Wind Monitor
  • Accuracy: +/- 0.3 m/s (+/- 0.6 mph)
  • Operating Range: 0 to 60 m/s (0 to 134 mph)
  • Starting Threshold: 1 m/s (2.2 mph).
  • Height: 3 m
  • Output Units: meters per second
  • Scan Interval: 5 seconds
• Wind Direction: RM Young 05103-L Wind Monitor
  • Operating Range: 0 to 360 deg (mechanical) true north (0 to 355 electrical, 5 deg open)
  • Starting Threshold: 1.1 m/s (2.2 mph) 10 deg displacement
  • Installation: Align true north
  • Height: 3 m
  • Output Units: degrees true north
  • Scan Interval: 5 seconds
• 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
• Air Temperature - Cold Range: Triplicate YSI Series 44033 thermistors
  • Operating Range: -80°C to +75°C
  • Installation: In 6 plate Gill Radiation Shield, non-aspirated
  • Height: 2 meters (6.6 feet)
  • Output Units: kW, °C.
  • Scan Interval: 60 seconds
• Barometric Pressure : CSI Model CS106 Vaisala PTB110 Barometer
  • Installation: inside the datalogger enclosure
  • Height: ~ 1.5 m
  • Output Units: hPa (mb)
  • Scan Interval: Hourly
• Summer Precipitation: Texas Electronics TE525MM (Tipping Bucket Gauge)
  • Resolution (1 Tip) : 0.1 mm (0.004 in)
  • 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: 1.2 m
• Soil Temperature (ST1,ST2,ST3) GWS YSI Series 44033 (Thermistors)
  • Depths: ~1cm (surface), at top of soil interface, 3 thermistors
• Soil Temperature Profile (STP1,STPn,..,STP12) GWS YSI Series 44033 (Thermistors)
  • Installation: In back-filled bored hole
  • Depths: 0-150 cm; 1-12 thermistors (based on actual depth of bored drill hole)
• Soil Moisture Profile (SM1,SM2,SM3,SM4) Campbell Scientific CS616 Soil-Moisture Probe
  • Installation: horizontal orientation in back-filled hole
  • Depths: 10cm, 20cm, 30cm, 40cm
• Datalogger: Campbell Scientific CR1000
  • Operating Temperature Range: -55°C to +85°C
• Radio: Freewave FGR-115RC
  • Frequency: 900 MHz Spread Spectrum