Alert, Nunavut, Canada

Basic information

GNSS station ID: ALRT
Location: 82.494, -62.340
Biome: Polar desert
Permafrost zonation: continuous
CALM site nearby: Yes
Landcover: Mainly silts, sands, and shattered
rocks filled with ice, ranging from 2.4 to 4 m thick (Taylor et al., 1982)



GNSS-IR measurements

Key parameters for GNSS-IR

GNSS signal: GPS L1 C/A
Elevation angle: 8–20 deg
Azimuth angle: 250–360 deg
Monument type: Galvanized steel pipe


Surface elevation changes in thaw seasons


Reflector heights

Download the alrt.csv



Notes:

  1. MAAT: mean annual air temperature
  2. Taylor, A., Brown, R. J. E., Pilon, J., and Judge, A. S.: Permafrost and the shallow thermal regime at Alert, N.W.T, in: Proceedings of the Fourth Canadian permafrost conference, 12–22, 1982.