W is for wind chill...
Jul. 23rd, 2008 06:17 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
Well, last night wasn't fun. I don't know if my tent wasn't up to the job, or my sleeping bag, or both, but I froze. I was wearing several layers, two hats (yes, layers on my head), a scarf, gloves and really thick socks inside my sleeping bag (which is rated to -20C), and I found myself getting colder and colder. I dozed off a couple of times, but when I woke up shivering I realised that, whilst I wasn't actually hypothermic at the time, I would be if I got any colder, so I got up (this was about 2.30am/3am, I don't remember) and went to the mess tent in camp which has a diesel-fired stove. I then spent the next couple of hours huddled next to it, then I eventually fell asleep for a while.
What I *think* happened was, the design of my tent is basically pretty bad -- it seems to assume relatively little wind, with precipitation falling more or less vertically. However, last night it was basically raining horizontally, and since the outer fly doesn't seal against the ground, wind (with rain in it) just blows under it. The inner tent is fully enclosed, but the fabric is not waterproof beyond about 4 inches above the ground, probably to ensure enough ventilation in warmer climates. I am going to attempt to rig something more effective later -- I can probably get away with taking a few garbage bags and duck-taping them around the edge of the fly sheet, then weighting them down with rocks to make a seal around the base of the tent all the way around. It won't be pretty, but last night was horrible, so...
Oh, and the army cot I got from Polar Shelf broke too, so I wasn't a happy bunny. I've asked for another one to be sent out on the next Twin Otter, hopefully today.
What I *think* happened was, the design of my tent is basically pretty bad -- it seems to assume relatively little wind, with precipitation falling more or less vertically. However, last night it was basically raining horizontally, and since the outer fly doesn't seal against the ground, wind (with rain in it) just blows under it. The inner tent is fully enclosed, but the fabric is not waterproof beyond about 4 inches above the ground, probably to ensure enough ventilation in warmer climates. I am going to attempt to rig something more effective later -- I can probably get away with taking a few garbage bags and duck-taping them around the edge of the fly sheet, then weighting them down with rocks to make a seal around the base of the tent all the way around. It won't be pretty, but last night was horrible, so...
Oh, and the army cot I got from Polar Shelf broke too, so I wasn't a happy bunny. I've asked for another one to be sent out on the next Twin Otter, hopefully today.
(no subject)
Date: 2008-07-23 11:37 am (UTC)(no subject)
Date: 2008-07-23 11:42 am (UTC)(no subject)
Date: 2008-07-23 12:42 pm (UTC)First time I went to the arctic was camping, and the tent I had wasn't really up to the job. We had to fix up the tent with large rocks to fend the wind off. Somewhere I have a lovely photo of
I hope it gets warmer for you. Cold is bad and evil.
(no subject)
Date: 2008-07-23 12:48 pm (UTC)What sort of tent are you using? A good mountain tent should be designed to withstand pretty strong winds, it certainly shouldn't be letting you get cold from underneath. Also does cot mean campbed? I find campbeds generally make me colder and prefer to sleep on a thermarest with all my spare clothes piled on top of it. Although that may be a stupid idea if there is cold air getting in at ground level.
But you have duct tape and duct tape can solve 90% of the world's problems so I'm sure tonight will be better!
(no subject)
Date: 2008-07-23 01:22 pm (UTC)Something different, but related to your current situation: When you have a minute, could have a look at this post by
(no subject)
Date: 2008-07-23 01:58 pm (UTC)Is it a down sleeping bag or an artificial fibre one? If it's a down one, then when they get wet they lose much of their warmth, so you have to be very careful about getting them too wet either from the outside (damp / rain etc.) or from inside (sweating lots).
You might get good advice if you posted on http://www.outdoorsmagic.com/
Also, one of the posts says something about sleeping naked inside a technical sleeping bag - this link
http://www.psychovertical.com/?maximisingwarmth
seems to sort of back it up - as long as your bag is rated down to the temperatures you're sleeping in. Personally I tend to wear a fleece or similar, but often have it open. That link has lots of other good advice too, like doing a bit of exercise just before bed to make sure you're warm to start with, and making sure you're eating well.
Joe
(no subject)
Date: 2008-07-23 02:36 pm (UTC)(no subject)
Date: 2008-07-23 05:05 pm (UTC)(no subject)
Date: 2008-07-23 09:42 pm (UTC)(no subject)
Date: 2008-07-24 12:37 am (UTC)2. what have you currently got?
3. if we can get you something better do we ship direct or via ames?
(no subject)
Date: 2008-07-24 05:38 am (UTC)I know this will sound werid, but do you have a hot water bottle (or a bottle that will withstand hot water being in it?) handy? You can put it in your sleeping bag for a while before you plan to get in. It might help get you off to sleep and then your own body heat should keep the bag going.
(no subject)
Date: 2008-07-24 10:30 pm (UTC)(no subject)
Date: 2008-07-24 10:31 pm (UTC)And yes, duct tape. Oh yes, duct tape.
(no subject)
Date: 2008-07-24 10:33 pm (UTC)(no subject)
Date: 2008-07-24 10:39 pm (UTC)I am pretty sure my sleeping bag is artificial fibre -- it's a North Face Snowshoe. When there isn't a subzero, 98% humidity howling gale blowing through my tent it works great...
(no subject)
Date: 2008-07-24 10:41 pm (UTC)(no subject)
Date: 2008-07-24 10:42 pm (UTC)(no subject)
Date: 2008-07-24 10:43 pm (UTC)(no subject)
Date: 2008-07-24 10:48 pm (UTC)*Next* time, of course, I'll know exactly what to look for in an arctic-capable tent.
(for reference, low roof, dome or teepee shaped, not too large, flap all the way around the edge that can be weighted down with rocks, poles on the outside so you can guy it down more effectively, fly sheet that goes down to the ground, inner compartment that is fully seam-sealed. Big enough to take a big thermarest on top of a big camp bed and leave enough room for Stuff.)
(no subject)
Date: 2008-07-24 10:50 pm (UTC)(no subject)
Date: 2008-07-25 05:32 am (UTC)(no subject)
Date: 2008-07-28 10:10 pm (UTC)I have great trouble keeping warm at night when camping. I finally succeeded at the last event by using two sleeping bags both rated for 3 seasons - in June! I left the outer rectangular one open nearly to the feet so I could throw it off if I got too warm, but only had to do that on one of the three nights.
I do have really weird body temperature control though :}
Anyway maybe a second sleeping bag or blanket around your sleeping bag may help, your main sleeping bag is probably pretty efficient at insulating but the blanket/2nd bag should help cut down drafts.
Or maybe use it as extra padding between you and the cot.