Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302.
Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid
OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS.
1. REPORT DATE (DD-MM-YY)
2. REPORT TYPE
3. DATES COVERED (From - To)
January 2001
Technical Report
4. TITLE AND SUBTITLE
5a. CONTRACT NUMBER
5b. GRANT NUMBER
Spatial Analysis of Thaw Depth
5c. PROGRAM ELEMENT NUMBER
6. AUTHOR(S)
5d. PROJECT NUMBER
5e. TASK NUMBER
Rosa T. Affleck and Sally A. Shoop
5f. WORK UNIT NUMBER
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION REPORT
NUMBER
U.S. Army Engineer Research and Development Center
Cold Regions Research and Engineering Laboratory
72 Lyme Road
ERDC/CRREL TR-01-1
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSOR / MONITOR'S ACRONYM(S)
Office of the Chief of Engineers
11. SPONSOR / MONITOR'S REPORT
Washington, D.C. 20314
NUMBER(S)
12. DISTRIBUTION / AVAILABILITY STATEMENT
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. SUPPLEMENTARY NOTES
14. ABSTRACT
Statistical and spatial analyses were performed on existing thaw-depth data sets from a variety of climatic and terrain conditions to
determine the variability of thaw. These data include permafrost sites in Alaska, temperate sites in the continental United States in
Minnesota and Wisconsin, and a large-scale, controlled test section with no solar input in the Frost Effects Research Facility (FERF)
at the Cold Regions Research and Engineering Laboratory (CRREL) in Hanover, New Hampshire. Results can be used to spatially
distribute soil properties based on point data or one-dimensional models, or to populate sparse data sets with terrain properties. They
are also useful for analysis of impact of thaw distribution on predictive models, such as for predicting vehicle mobility.
15. SUBJECT TERMS
Soil
Statistics
Freezethaw
Spatial variability
Thaw depth
Ground
16. SECURITY CLASSIFICATION OF:
17. LIMITATION OF
18. NUMBER
19a. NAME OF RESPONSIBLE PERSON
OF ABSTRACT
OF PAGES
a. REPORT
b. ABSTRACT
c. THIS PAGE
19b. TELEPHONE NUMBER (include area code)
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to contents
Standard Form 298 (Rev. 8-98)
Prescribed by ANSI Std. 239.18
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