Avalanche_Handbook - Page 131 | University of Utah Partnerships

Contents | 131 of 149

Avalanche_Handbook - Page 131

Download PDF | | Reference URL | Gallery View | Parent Record

Title	Avalanche Handbook
Subject	Avalanches--Handbooks, manuals, etc.
Description	This handbook has been prepared primarily for the guidance of Forest Officers concerned with the safety of skiers using winter sports areas within the national forests. It discusses the various phases of avalanche hazard evaluation and control in layman language. Although parts of the handbook are devoted to a description of the research methods developed to evaluate hazard and snow stability, the primary purpose of the handbook is for the guidance of the "man-on-the-ground" in coping with the problem.
Creator	Atwater, Montgomery M.; Koziol, Felix C.
Publisher	Digitized by J. Willard Marriott Library, University of Utah
Contributors	U.S. Department of Agriculture; Forest Service; Wasatch National Forest; Alta Avalanche Study Center
Date	1953
Type	Text
Format	application/pdf
Date Digital	2009-06-16
Identifier	Avalanche_Handbook.pdf
Source	U.S. Department of Agriculture; Forest Service; Wasatch National Forest; Alta Avalanche Study Center
Language	eng
Relation	Alta Avalanche Study Center, replaces The Alta avalanche studies, issued by the U.S. Forest Service, Intermountain Region.
Is Part of	Ski Archive
Spatial Coverage	Alta, Utah
Rights
ARK	ark:/87278/s68p5xg7
Setname	uu_altaav
ID	15380
Reference URL	https://collections.lib.utah.edu/ark:/87278/s68p5xg7

Page Metadata

Title	Avalanche_Handbook - Page 131
OCR Text	Show II. Size: a. Small: Distinguished from sluffs by being definite movements with form and pattern. May run considerable distances but are shallow, lack momentum and are not dangerous. b. Medium: Attain fair size and momentum but not enough to overcome obstacles. Stop as soon as they reach an easier grade or other obstruction. May be extensive but are shallow. Mildly dangerous to life and property. c. Large: Involve snow in depth as well as width. Build up sufficient momentum to overcome obstacles and reach or approach the bottom of the slope. Are dangerous to life and property. d. Major: Extensive in all dimensions. Develop sufficient momentum to overcome all obstacles and reach or travel beyond the bottom of the slope. Are highly dangerous to life and property. e. Climax: Product of unstable conditions developing over a considerable period of time. D. Classification of Avalanche Hazards. 1. 0 or None: Absence of hazard areas in general use by the public. 2. 1 or Low: Low degree of hazard. Generally appears at beginning of a storm before hazard has had time to develop or after one when conditions are nearly stable again. 3. 2 or Moderate: Intermediate state of avalanche hazard. 4. 3 or High: General avalanche conditions. 5. Addition of plus or minus to any of the above classifications indicates direction of hazard; increasing for plus, decreasing for minus. - 126 -
Format	application/pdf
Setname	uu_altaav
ID	15361
Reference URL	https://collections.lib.utah.edu/ark:/87278/s68p5xg7/15361