Description of Data Files

All depths are in meters.

Borehole and environmental protection descriptive and numerical data, Yamal Peninsula, Russia

• File: yadesc.dat
• Location: Yamal Peninsula, Russia
• Fields: No. of the nature-protection region; category of resiliency; locality type description; landscape type description; type of lithological section and its description (ground-ice content, water saturation, cryogenic structure, macro-ground-ice content); category of the ground-water protection type and its description; dominating forest, shrubs, and grass species, coverage in %; dominating moss-lichen species, and coverage in %; seasonally frozen and seasonally thawed layer depths (range from min to max); ground temperature at the depth of 10 m (range from min to max); exogenic geological processes and their paragenesis and combinations, degree of the surface disturbance
• Comments: A tab delimited field from a relational database which contains the full descriptive information for the nature-protection regions in which the boreholes are located.

• File: yabrhl.dat
• Location: Yamal Peninsula, Russia
• Time period: One date per borehole, dates range from 1976-1987
• Columns: # Region ,# Borehole ,Latitude ,Longitude ,Altitude, Date , Depth of borehole, Depth of freeze (thaw) at a coring date , Max depth seasonal freeze (thaw), Depth of permafrost upper limit,
  
  Ground temperature at 10 m deep (degree C), Type of geological section, active layer,
  Type of geological section(permafrost, 1st layer), Type of geological section (permafrost, 2nd layer),
  Ice content (lenses), Value and type of salinity (permafrost), Degree of salinity (Dsal, %), Topography
• Format: Varies per column
• Comments: This file is intended for users who wish to use a spreadsheet or data base program.

• File: yabrhl.txt
• Location: Yamal Peninsula, Russia
• Time period: One date per borehole, dates range from 1976-1987
• Comments: This file is intended for users who wish to browse the borehole data available. Each entry contains the above columns in a linear format