Station Information

Site Description

Station Name: Sag-Ivishak Met Station
Location: Close to snow survey site UP1, aka FT1

Coordinates: N 69 12.933 W 148 33.116 (WGS 84/NAD 83)
Elevation: NGVD 1929: 1414 ft (431 m)

Notes:

• Elevation from hand-held GPS

Station History

• Site Commissioned: ????

Sensor Details:

• Wind Speed: RM Young 05103
  • Accuracy: 60.6 mph
  • Operating Range: 0 to 60 m/s (0 to 134 mph)
  • Starting Threshold: 1 m/s (2.2 mph).
  • Height: 3 meters (9.8 feet)
• Wind Direction: RM Young 05103
  • Accuracy: 63°
  • Operating Range: 0° to 360° mechanical; (0° to 355° electrical (5° open)
  • Installation: Align true north.
  • Height: 3 meters (9.8 feet)
    
• Air Temperature/Relative Humidity: Vaisalla HMP45C
  • 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
  • Temperature Range: -40 to +60°C
  • RH Range: 0 to 100%
  • Installation: In 10-plate gill radiation shield, non-aspirated.
  • Height: 2 meters (6.6 feet)
    
• Backup Air Temperature: GWS 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)
• Summer Precipitation: Texas Electronics 525WS (Tipping Bucket Gauge)
  • Resolution: 0.01 in
  • Accuracy: 61% up to 1 in./hr; +0 to -2.5% for 1 to 2 in./hr rainfall rates
  • Installation: Surrounded by ETI Alter (wind) shield
  • Height: 0.4-0.7 meters (1.3 - 2.3 feet)
• Snow Depth: Campbell Scientific SR50 (Ultrasonice distance sensor)
  • Operating Range: 0.5 to 10 meters
  • Resolution: 0.1 mm
  • Accuracy: 61 cm or 0.4% of distance to target, whichever is greater
  • Installation: Point straight down on a flat surface
  • Height: 1.34 meters (4.4 feet)
• 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: 1.24 meters (4.1 feet)
• 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) Campbell Scientific CS616 Soil-Moisture Probe
  • Installation: horizontal orientation in back-filled hole
  • Depths: 10, 20, 40 cm
    
• Datalogger: Campbell Scientific CR1000
  • Operating Temperature Range: -55°C to +85°C
• Radio: Freewave FGR-115RC
  • Frequency: 900 MHz Spread Spectrum