Baisse de l’humidité atmosphérique
La quantité de vapeur d’eau contenue dans l’air diminue avec l’altitude.
A 4000 mètres, la tension de vapeur d’eau ne représente plus que le quart de sa valeur au niveau de la mer. Si on ajoute à cela que le volume d’eau contenu dans l’air est plus faible aux températures basses qu’aux températures élevées, il devient manifeste que l’air qui entoure le montagnard est sec.
Cet air sec augmente la déshydratation contre laquelle l’organisme n’a aucune protection. Cet air sec et froid est aussi à l’origine de l’irritation des voies respiratoires et des maux de gorge.
La déshydratation a une conséquence directe sur la performance physique.
Une perte d’eau de 2 % du poids du corps (soit un litre et demi pour 80 kilos) diminue la performance de 20 % !
Decrease in atmospheric humidity
The amount of water vapour in the air decreases with altitude.
At 4000 metres, water vapour pressure is only a quarter of its value at sea level. If we add to this the fact that the volume of water contained in the air is lower at low temperatures than at high temperatures, it becomes clear that the air surrounding the mountain dweller is dry.
This dry air increases dehydration, against which the body has no protection. This dry, cold air also causes irritation of the respiratory tract and sore throats.
Dehydration has a direct impact on physical performance.
Woah! I’m really enjoying the template/theme of this
blog. It’s simple, yet effective. A lot of times it’s hard to get that « perfect balance »
between usability and visual appearance. I must say you’ve done a great job with this.
Also, the blog loads extremely fast for me on Opera.
Outstanding Blog!
Thanks for finally writing about > Baisse de l’humidité atmosphérique | Objectif Montagne < Liked it!
Hey there! Would you mind if I share your blog with
my zynga group? There’s a lot of folks that I think would really
appreciate your content. Please let me know. Thanks
Here is my site: credit card holder insert for chic sparrow maverick
You may share my blog with your zynga group.
Respect to website author , some good selective information .
Howdy! I simply would like to give a huge thumbs up for the good data you have here on this post. I will probably be coming again to your weblog for more soon.
I am definitely bookmarking this website and sharing it with my acquaintances. You will be getting plenty of visitors to your website from me!
Thanks a lot !
Good post. I learn something new and challenging on websites I stumbleupon everyday. It’s always interesting to read through content from other writers and practice a little something from their websites.
Good article. I certainly love this site. Keep writing!
Very nice article. I absolutely love this site. Stick with it!
It’s difficult to find educated people about this subject, but you sound like you know what you’re talking about! Thanks
Thanks for ones marvelous posting! I actually enjoyed reading it, you’re a great
author. I will always bookmark your blog and will often come back sometime
soon. I want to encourage yourself to continue your great job, have a nice weekend!
Thanks for your comment
Thanks a lot and take care
It’s a shame you don’t have a donate button! I’d without a doubt donate to this superb blog!
I guess for now i’ll settle for bookmarking and adding
your RSS feed to my Google account. I look forward to fresh updates and will
talk about this blog with my Facebook group. Talk soon!
I’ve read several excellent stuff here. Certainly price bookmarking for revisiting.
I wonder how a lot attempt you set to make one of these fantastic informative
site.
Excellent blog here! Also your site loads up very fast! What web host are you using?
Can I get your affiliate link to your host? I wish my website loaded
up as fast as yours lol
My web site is hosted by Infomaniak
I was excited to find this site. I want to to thank you for ones time for this wonderful read!!
I definitely loved every little bit of it and i also have you bookmarked to check out new information on your web site.
I am curious to find out what blog platform you happen to be
using? I’m having some small security problems with my latest site
and I would like to find something more safeguarded. Do you have any recommendations?
I am using WordPress and my site is hoste at Infomaniak.
I used to be able to find good info from your blog articles.
You made some good points there. I checked on the web for more info about the issue
and found most people will go along with your views on this site.
Great blog you have got here.. It’s hard to find high-quality writing like yours
nowadays. I truly appreciate people like you! Take care!!
Hurrah! After all I got a web site from where I be able to in fact take helpful facts
concerning my study and knowledge.
It’s going to be ending of mine day, but before end I am
reading this fantastic paragraph to increase my knowledge.
Excellent pieces. Keep writing such kind of info on your site.
Im really impressed by your site.
Hello there, You have performed a fantastic
job. I’ll definitely digg it and individually suggest to
my friends. I’m confident they will be benefited from this
web site.
I visit day-to-day some blogs and sites to read posts, except this webpage presents
quality based posts.
This info is worth everyone’s attention. When can I find out more?
You may look at Relative humidity.
Also at Fundamentals.
Great goods from you, man. I have understand your stuff previous
to and you’re just too great. I really like what you have acquired here, certainly like what
you are stating and the way in which you say it. You make it enjoyable
and you still take care of to keep it wise. I can not wait to read far more from you.
This is really a tremendous web site.
whoah this weblog is great i love reading your articles.
Stay up the great work! You already know, many
persons are searching around for this info, you can aid them
greatly.
Can you tell us more about this? I’d love to find
out some additional information.
You may find additional info at atmospheric humidity
My coder is trying to convince me to move to .net
from PHP. I have always disliked the idea because of the costs.
But he’s tryiong none the less. I’ve been using Movable-type on several websites for about a year and am nervous about switching to another platform.
I have heard good things about blogengine.net. Is there a way I can transfer all my wordpress posts
into it? Any kind of help would be greatly appreciated!
Sorry, can’t help on that specific issue. My site is hosted by Infomaniak
and they have specialists that coudl eventually help you.
Hello! I just wish to offer you a huge thumbs up
for the great info you have here on this post. I will be
returning to your website for more soon.
Hi, always i used to check web site posts here in the early hours in the daylight, since i love to find out more and more.
Asking questions are in fact nice thing if you are not understanding anything totally, except this
piece of writing gives pleasant understanding yet.
Hi! This post couldn’t be written any better!
Reading through this post reminds me of my good old room mate!
He always kept talking about this. I will forward this page to him.
Fairly certain he will have a good read. Thank you for sharing!
I’m not sure where you’re getting your info, but great topic.
I needs to spend some time learning much more or understanding more.
Thanks for fantastic information I was looking for this information for my mission.
What’s Taking place i’m new to this, I stumbled upon this I
have discovered It absolutely helpful and it has helped me out loads.
I’m hoping to give a contribution & aid different users
like its helped me. Good job.
Nice post. I learn something totally new and challenging on websites I stumbleupon on a
daily basis. It’s always helpful to read articles from other writers and practice a little something from
their sites.
Greate article. Keep posting such kind of info on your site.
Im really impressed by your blog.
Hello there, You’ve done a great job. I will certainly digg it and
in my opinion suggest to my friends. I am sure they will be benefited from this web site.
Thanks for your comment, and for forwarding the blog to your friends.