Geophysical Data Collection

wlcable - Mon, 2010-03-01 16:27

 

Permafrost climate stations

Happy Valley North Slope Alaska

Isachsen Nunavut Canada

Major components:

  • Air temperature.
  • Snow depth, ultrasonic sensor.
  • Solar panel.
  • Lighting rod.
  • High density soil temperature array (MRC) from the surface till 1 meter depth.
  • Three soil moisture probes with temperature sensors at 0.05, 0.15, 0.3 meter.
  • Where possible deep boreholes to monitor long term changes in permafrost temperature.
  • Datalogger
  • Operation on an houly time step for surface processes.
  • Deep boreholes measured annually.

Other methods:

  • Soil temperature measurements using HOBO loggers at a variety of depths.
  • Soil liquid water content using DC resistivity.

  • Ground penetrating radar (GPR).
  • Borehole logs and samples.
  • Surface features, thermokarst, ice wedge polygons, non-sorted circles, earth mounds, palsas, pingos, tufurs.

North of the Oglive mountains along the Dempster Highway

  • Soil pits in summer and frozen soil cores in winter.

Chin-Lu Ping and Gary Michaelson soils class 2005 Sagwon MNTSoil sampl from Toolik snowfence experient March 2007

  • Frost heave meters