15 November, 1996
Nov. 15 Journal
Minimum temp. - 6.9 ° C maximum + 0.7° C Wind 9 knots
Well, it's time for our field safety training session called "Snowcraft I".
Snowcraft II is for those persons going to an area with crevasses and
involves directions to stop sliding down slow slopes and directions how to
get people out of crevasses.
For our safety training session out on the ice we needed to take ALL our
extreme cold weather gear: two parkas, all 11 pairs of gloves & mittens,
numerous pairs of socks, both pair of long underwear, fleece pants, fleece
jacket top, wind pants, bunny boots, water bottle, goggles, this was put in an
orange bag. They suggested we also take extra thermal underwear and lots of
sunscreen so of course, I did.
We were first briefed on use of a radio and cold weather injuries. Major
cold weather injuries are hypothermia, frost bite and trench foot. Hypothermia
is when your body gets so cold your body pulls all the blood to the core to
try to maintain life. Your blood vessels in your hands, feet and brain
constrict. Mild cases are often recognized by the "umbles" You mumble
incoherently and stumble with lack of coordination. Frost bite is when the
skin freezes. We were briefed on what to do if that occurs. I had never
heard of trench foot. When your feet are kept wet repeatedly, bacteria grow
and you can get an infection like gangrene and lose your toes, etc. This much
more rare. To eliminate this, change your socks a lot.
We were also told repeatedly, "Cotton kills. Don't wear cotton. When it
gets wet you get chilled as it loses its insulation powers. Wool and
polartech do not do that."
We were shown how to use two types of stoves, a Coleman two burner and MSR's.
The MSR's are used for emergency and are packed in all survival bags. MSR's
are small. We later used the Coleman stoves most because we had to use lots
of heat to melt lots of snow.
We traveled to our snowcraft site by a Norwell, a type of tracked vehicle
with a main cabin and a passenger cabin. (I think there is picture of them on
either this Glacier page or on the Web page out of Univ. of Wisconsin.)
We were each issued a sleeping bag, two foam pads and polyfleece liner for
the sleeping bag. We divided up into two groups by our guides. Our guides are
experienced in Antarctica safety. Vince is also a guide for groups mountain
climbing Mt. McKinley in Alaska during the summer in the Northern Hemisphere.
Brooke Montgomery is a river trip guide on the Salmon River in Idaho in the
summer. Brooke has been training parcticipants and is also a part of the
Search and Rescue teams that have to be sent out to rescue people either
caught in storms, lost, hypothermic, plane crash sites, etc.
After lunch consisting of sandwiches, hot chocolate, candy bars, gorp, etc.
we launch out to the sites where we sill set up camp. Our group builds a snow
block wall as a windbreak for the lighter tent; a Sierra Mountain tent which
sleeps two people. We learn how to set up the other tent, a Scott tent which
is 6 or 7 ft square and sleeps 3-4 people. This square pyramid canvas and has
a cone entrance into it similar to what they always show at the entrance to
igloos.
Speaking of igloos, our group of 7 decided to build an igloo to sleep in.
It takes about 3-4 hours but we really build a pretty good one. Jennifer
Stewart and Surujhdeo Seunarine, two of our research team, decided to sleep
in it. The igloo would have held more people if we had taken time to excavate
it more, but we were getting tired and had sufficient tents for others. You
need to cut about 40 large blocks of consistent size and begin a spiral. Each
block is cut like a trapezoid and fits like a keystone at the top of an arch.
In doing this, one person needs to be in the center as the igloo progresses.
Laura, one of our team volunteered. After the igloo is complete, she tries to
dig out and we dig in at the same place. It is important to make the doorway
entrance below the level of the floor in the igloo so all the cold air goes
down. I took lots of photos and hope some come out OK. Jennifer and Suruj
say that it really was quite warm in the igloo, but if you touched the sides,
snow fell down on you.. The igloo was quiet even in the windstorm that came
up about 11PM and howled until about 10AM the next day.
One of our teammates built a trench shelter. He dug a deep trench carefully
so that he could cut out large oblong blocks of snow about 6 inches thick.
These are tilted across the top of the trench forming a peaked roof. His
shelter was also warm and toasty and quiet.
I slept in the Scott tent. It was toasty warm, but noisy as the canvas sides
flapped about in the wind. The sleeping bags we were issued are rated for
very low temperatures and you are wrapped up like a "mummy." We also boiled
water and placed it in our water bottles to warm up the bag and our feet.
The other group constructed a Quincy for several people to sleep in. You
build this by piling all your gear on the ground and covering it with a
tarpaulin. Then you pile LOTS of snow on it to make a thick layer about 2 ft
thick. You next tunnel underneath it and dig out the gear forming a domed
structure. The "igloo" group spent no more time than the "Quincy" group.
That was very surprising.
I learned to operate the Coleman stove and boiled snow water for dinner-----
various packs of dehydrated food, more gorp, candy, granola bars, hot
chocolate. We experienced a little problem with the Coleman stove -- it
caught on fire. No problem, we put it out and fortunately had a back up. Our
research group must remember to check out the stove we are issued to see that
it has no problems. No backups in the field. Before dinner, our instructors
left us and traveled a large distance away. We are supposed to be able to
camp without any more help. One group did have a radio in case of a major
problem.
Since it is light all day we don't feel like going to bed yet, so a group of
us go cross country skiing. I can't believe it. I have never put on a pair
of skis and here I am doing it on the Ross Ice shelf at 10:30 PM. I did fall
once, but I enjoyed it so much I will have to try it again when I get back in
the US.
About 11PM, the wind began to pick up. We had noticed small, wispy cirrus
clouds in the sky about 2 hours ago. They are coming from the south, south
east. This is the direction that major storms come from so we have to be
vigilant and be sure that we tie ALL our gear down or get it placed in such a
way that it doesn't blow off in the wind.
We're tired and it's time to go to bed. I'm a little worried about the wind
picking up. It has been a delightful day, cold, but not so cold as to be
uncomfortable because we had a calm day. The winds buffets the tent and the
side flaps noisily. I awaken numerous times in the night, but always feel
warm.
More tomorrow.
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