Skip to data content Skip to data search

Time Series of Seasonally Frozen Ground Depth in the Russian Arctic, 1930-1990


This data set consists of seasonally frozen ground depth measurements based on soil temperatures in the Russian Arctic. Seasonal freezing and thawing processes in cold regions play a major role in ecosystem diversity, productivity, and the Arctic hydrological system. Long-term changes in seasonal freeze and thaw depths are also important indicators of climate change. Investigators collected data from 211 ground-based stations. The record extends from 1930 to 1990 and includes seasonal freeze depths derived from soil temperature data that are averaged yearly. Data are in tab-delimited ASCII text format.

Data access

Additional information

  • 1.0 (2009-04-29)
Subscribe Subscribe to receive email when new or updated data is available.
Related projects
Spatial Type point
Frequency other
Language English
Grant Code OPP-0229766
ISO Topic Categories
  • climatologyMeteorologyAtmosphere
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 1930-01-01 00:00:00
End datetime 1990-12-31 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 68.90, Minimum (South) Latitude: 42.70
Minimum (West) Longitude: 30.80, Maximum (East) Longitude: -179.50

Primary point of contact information

Tingjun Zhang <>

Additional contact information


Example citation following ESIP guidelines:

Zhang, T., Barry, R., Frauenfeld, O. 2009. Time Series of Seasonally Frozen Ground Depth in the Russian Arctic, 1930-1990. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 28 Oct 2020.

Today's date is shown: please replace with the date of your most recent access.

Additional citation styles

Ancillary information

Metadata download

Note that your browser may not display the above metadata links, but automatically save them as files in a folder such as "Downloads"