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  • Station or cluster: CryoNet Station
  • Type: Reference
  • Attribute(s):
  • WMO ID (if any): N/A
  • Shape: point
  • Latitude, longitude: 35.719, 94.12517
  • Altitude and/or range (m): 4570-4520
  • Landscape: Coastal
  • Year established: May, 2004
  • Year-round? Yes
  • Operations contact: Yongping Qiao
  • Science contact: Tonghua Wu
  • Data contact: Lin Zhao
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Reference CryoNet Station Information

Xidatan Site is located at the northern boundary of permafrost distribution on the Qinghai-Tibet Plateau. The observations include ground temperatures at 20 levels, soil temperature and soil moisture at 5 levels, soil heat flux at 3 levels, general meteorological observations with air temperature, precipitation, radiation, air pressure, wind speed and direction.

Other Networks to Which This CryoNet Station Belongs

Measurement Methods Used

Data Information


Tonghua Wu, Shuxun Li, Guodong Cheng, Zhuotong Nan, 2005: Using Ground-Penetrating Radar to Detect Permafrost Degradation in the Northern Limit of Permafrost area on the Tibetan Plateau. Cold Regions Sciences and Technology. 41(3): 211-219.


The measurements made at Xidatan are listed in the following tables. (Note: If End Year is blank, measurements are ongoing.)

Cryosphere Measurements

Element Variable Start Year End Year Frequency
PermafrostSoil temperature2004Continuous
PermafrostActive layer depth2004Continuous
PermafrostSoil moisture2004Continuous
PermafrostThermal state2004Continuous
PermafrostDistribution (local/regional)19752003Sporadic
PermafrostDepth of seasonal freezing2004Continuous

Atmosphere Measurements

Element Variable Start Year End Year Frequency
MetAir temperature2004Continuous
MetHumidity/vapour pressure2004Continuous
MetWind speed and direction2004Continuous
MetAir pressure2004Continuous
MetTotal precipitation2004Continuous
MetSensible and latent heat2004Continuous
RadiationDownwelling shortwave2004Continuous
RadiationUpwelling shortwave2004Continuous
RadiationDownwelling longwave2004Continuous
RadiationUpwelling longwave2004Continuous

Last updated: 31 May 2017