Snow%20Shelters - PowerPoint PPT Presentation

View by Category
About This Presentation
Title:

Snow%20Shelters

Description:

Anchors. A little more difficult to 'stake' the tent in the snow. ... experience a 2 person emergency cave can be built in as little as 30 minutes. ... – PowerPoint PPT presentation

Number of Views:108
Avg rating:3.0/5.0
Slides: 20
Provided by: hbri
Learn more at: http://www.angio.net
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Snow%20Shelters


1
Snow Shelters
  • Winter School 2002
  • By Hector Briceno
  • Pictures from
  • Freedom of the Hills 6th Edition
  • or
  • Princeton University Outdoor Action Program

2
Basic Winter Camp Review
  • Shelter Protects you from the wind for sleeping
    and cooking
  • Shelter traps heat

3
Anchors
  • A little more difficult to stake the tent in
    the snow. You have different anchors Ice Axe,
    Ice Screws, Snow shoes, skis, deadman anchors

4
Snow Shelters
  • Traditional Igloo (everyone is familiar with the
    idea)
  • Snow Caves
  • Snow Trench
  • Quin-zhee low snow conditions

5
Possible Tools
  • Snow Shovel is key if you want to move a lot of
    snow (and if snow is icy is pretty much only
    choice)
  • Snow saw cuts nice blocks if snow is good
  • Snow Shoes
  • Sleds
  • Hands
  • Ice Axes

6
Igloo Construction
  • Need good snow that stays in blocks.
  • Make sure you sleep above entrance

7
Igloo From Inside
  • Igloos can be pretty big and cozy (right R and
    A?)

8
Snow Caves
  • Under branches is fast because the branches
    provide a natural roof
  • On Slope is good because it is easy to make sure
    you sleep higher than the entrance.

9
Snow Cave theory
  • Snow caves require adequate snow depth
  • Are you on a potential avalanche slope?
  • Could wind blow over and seal you in? (that is
    why someone has to clear or dig opening every
    couple of hours or more
  • Easier to dig a cave on a steep slope than a
    shallow one.
  • Temperature can be around freezing when it is 10
    outside
  • Takes time, 2 or 3 hours for a four person snow
    cave with 2 shovels. With experience a 2 person
    emergency cave can be built in as little as 30
    minutes.
  • Make sure to keep your clothes dry during
    construction
  • Keep the ceiling smooth, and dig a trench around
    the base so water does not drip on you.

10
Snow Cave 1
  • Dig a space (T) big enough to haul the snow out.
    This will later be covered with a pack or snow
    blocks.

11
Snow Cave 2
  • Notice that you sleep higher than the entrance

12
Snow Cave 3
  • Notice wands demarcate boundary so people dont
    step over the cave

13
Snow Trenches
  • First one needs tarp
  • Second one needs branches

14
Snow Trenches
  • Can use skis or tarp, you sleep on the side
    chambers

15
Snow Trench
  • Need somewhat deep snow, but quick to build
  • Can dig a hole in the middle to trap cold air

16
Trench Igloo
  • More basic emergency shelter.
  • Vent a hole.
  • You can also dig a hole where the cold air will
    collect
  • Caulk any gaps between the blocks and smooth out
    irregularities in the ceiling.

17
Tree-pit Shelter
  • You can also use the tree-pit shelter for holding
    out a storm. Quick to dig. Shelters from the
    wind.

18
Quin-Zhee
  • For when there is little snow

19
Quin-Zhee continued
  • Make a big pile of snow (6 feet high and 12 feet
    in diameter with a stick in the middle)
  • Let it sit, then dig in
About PowerShow.com