ArcticRIMS: Daily Thaw Depth And Frozen Ground Depth, Based on ERA-40 2-meter, Aggregated by Administrative Regions

Daily thaw depth and frozen ground depth are calculated using a frozen ground model. Oelke et al. [2004] provide details, while also referring to [Oelke et al., 2003]. Thaw depth and frozen ground are calculated using different initial model settings. In the first case, all soil down to the lower model boundary is set to sub-freezing initial temperatures. Thawing during the summer months caused the development of a thawed layer at the top with the thaw depth again decreasing during freeze-up of the thawed layer in fall. Frozen ground depth on the other hand is calculated with soil temperatures at all depths above-freezing at the beginning. Here the frozen depth increased during winter, and spring thawing eventually decreases its value. The data are presented in 24 sub-datasets of different spatial and temporal aggregations.

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Temporal Range

  • Begin:  1970-01-01T00:00:00Z
    End:  2001-12-31T23:59:59Z

Keywords

Resource Type dataset
Temporal Range Begin 1970-01-01T00:00:00Z
Temporal Range End 2001-12-31T23:59:59Z
Temporal Resolution N/A
Bounding Box North Lat 90.00000
Bounding Box South Lat 45.00000
Bounding Box West Long -180.00000
Bounding Box East Long 180.00000
Spatial Representation grid
Spatial Resolution N/A
Related Links

Documentation #1 : 8_1.txt

106.ARCSS161 : is a companion to dataset 106.290
Additional Information N/A
Resource Format TAR/GNU Zip (.tar.gz/.tgz) (application/x-gzip)
Standardized Resource Format Archive
Asset Size 512 MB
Legal Constraints

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Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email datahelp@eol.ucar.edu
Resource Support Organization NSF NCAR Earth Observing Laboratory ROR icon
Distributor NSF NCAR Earth Observing Laboratory ROR icon

Metadata Contact Name EOL Data Support
Metadata Contact Email datahelp@eol.ucar.edu
Metadata Contact Organization NSF NCAR Earth Observing Laboratory ROR icon

Author Richard B. Lammers
Mark C. Serreze ORCID icon
Andrew Etringer
Publisher NSF NCAR Earth Observing Laboratory ROR icon

Publication Date 2009-10-21T12:53:58
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier 106.290
Resource Version 1.0
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-08-01T18:01:59Z
Metadata Record Identifier edu.ucar.eol::106.290
Metadata Language eng; USA
Suggested Citation Richard B. Lammers, Mark C. Serreze, Andrew Etringer. (2009). ArcticRIMS: Daily Thaw Depth And Frozen Ground Depth, Based on ERA-40 2-meter, Aggregated by Administrative Regions. 1.0. NSF NCAR Earth Observing Laboratory. https://data.eol.ucar.edu/dataset/106.290. Accessed 11 March 2026.

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