ON CONTRIBUTORY FACTORS IN AVALANCHE HAZARD EVALUATION

USING 20 YEARS OF STORM AND RAMSONDE PROFILE DATA, THE PROBABILITY OF AVALANCHE HAZARD TO THE ALTA HIGHWAY AND VILLAGE IS PLOTTED AS A FUNCTION OF TEN CONTRIBUTORY FACTORS. RESULTS INDICATE THAT THE HAZARD PROBABILITY IS RELATED STRONGLY TO PRECIPITATION AND WIND DIRECTION. CERTAIN FACTORS PREVIOUSLY THOUGHT TO BE IMPORTANT (WIND SPEED, SETTLEMENT, AND RANDOM PROFILES) DO NOT SEEM IMPORTANT FOR THE SOUTH FACING SLOPES AND LARGE AVALANCHES TESTED. /RATAOC/

• Supplemental Notes:
  • Vol 7, No 4, PP 414-419, 11 FIG, 1 TAB, 4 REF
• Authors:
  • Perla, R I
• Publication Date: 1970-11

Media Info

• Serial:
  • CANADIAN GEOTECHNICAL JOURNAL
  • Publisher: National Research Council of Canada

Subject/Index Terms

• TRT Terms: Avalanches; Evaluation; Hazards; Wind
• Uncontrolled Terms: Wind direction
• Old TRIS Terms: Precipitation
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00218138
• Record Type: Publication
• Source Agency: Roads & Transportation Assoc /Canada
• Files: TRIS
• Created Date: Aug 15 1971 12:00AM