Monday, February 16, 2015

Perform A Snow Compression Test

The snow compression elimination is a rapid research for snow stability. It is a solid part to aid classify exhausted layers in the snow pack and it aids in the decision making modus operandi of deciding whether the snow pack is steady or unstable. It should not be used alone, on the contrary it is an admirable and fast form for any backcountry user to attempt the snow. Wound up a plan of compressions on the snow , you'll be able to wristwatch and visually establish deadly forceless layers in the snow and diagnose the merit of the fracture. The results from the snow compression dry run can benefit in a end forming manner that could save your breath.


Instructions


Snow Compression Test


1. Bargain a sheltered district to corroboration the snow. It should be an field that is coincidental to where you demand to ski. The snow must be undisturbed for accurate results.


2. Dig away a snow string using your snow shovel. The contour should degree Thirty cm by Thirty cm and be One hundred to One hundred twenty cm big. Provided your column width is larger, your readings will not be accurate because the shovel won't distribute the compression evenly. If it is taller, it may wobble and create false readings. Use your saw to chop out the back of the column. The sides of the column should be as smooth as possible. If the column fails during digging, it is classified as "very easy" and is very unstable.


3. Place your shovel blade face down on the top of the column. Using only your finger tips, lightly tap the shovel Ten times. If the column fails, it is classified as "easy" and is unstable. The taps will be harder to simulate more compression. If the snow column fails here, it is "moderate" and unstable.5.


Be sure to watch the column as you tap, so you can identify where and when a failure happens.4. Tap the shovel Ten more times from your elbow.


Tap the shovel Ten more times from your shoulder. Use your fist to hit the shovel blade or it may hurt your hand. If it fails here it is called "hard" and is stable. If it does not fail, the snow is stable.


6. Record your observations. Include the location of the failures, the number of hits it took, and the way it broke (uneven or smooth). Your observations, along with other tests and information, will help you make a decision about the safety of the snow in each area.


7. Perform more compression tests and other snow stability tests in order to make the best decisions.