Friday 26 December 2008

Dail Mail is Confused by Snow

Must be a slow day at The Mail as a Canadian woman makes headlines after surviving for three days in snow. In what it calls a Christmas 'Miracle', the second one today, the Mail extols:
"Donna Molnar, who disappeared during a heavy blizzard, was discovered under two feet of snow wearing only ordinary clothing. Rescuers were stunned to find the 55-year-old Canadian still breathing after enduring temperatures as low as -15C."
It's great that she was found alive, maybe a little surprising but not really a miracle and not at all unheard of.

Mrs Molar, who is reported to be suffering from depression had lost family members over the festive period. When she went missing in the middle of snowstorm, friends feared the worst. Her abandoned car was discovered over the weekend - it's not clear at this stage how long she was out in the open or when she was buried by a snowdrift.

The Mail continues:
"...almost three full days after Molnar went missing, volunteer Ray Lau’s dog, Ace, became excited by a scent he had picked up in a field. Under heavy snow and high winds, the animal would normally be unlikely to smell a human presence."

So the Mail is almost implying that Mrs Molnar has been under the snow for three days - we already know that for at least some of that time she had been in her van. We can take it as read that she was in dire straits, but what of the dog and this heavy snow?

The canine sense of smell is many times more sensitive than our own and the Mail's assertion "the animal would normally be unlikely to smell a human presence" is bullshit either through ignorance or the the fact it weakens the story. Trained dogs routinely find skiers trapped under feet of snow after avalanches and by the story's own tacit admission, Mrs Molnar wasn't deeply covered.
"He [Ace] began nuzzling something hidden there, barking furiously and Mr Lau, who followed on his tail, then saw a gloveless hand and a woman’s face half-obscured by a black hood."
So in fact, at least some of Mrs Molnar was only covered by a thin blanket (making Ace's job a bit simpler): and what about that black hood - that sounds like outdoor clothing?

But the officer in charge, Mark Cox appears to have the key, telling the Canadian Globe and Mail, reportedly saying:
"Never even come close to something that was this unlikely. It really is incredible how she survived it. I’m shocked."
Which leaves me wondering how much experience he has at this - if he actually used those words - journos have nasty habit of, well, frankly putting words into people's mouths. The Mail is on a roll now:
"Bizarrely, police believe Mrs Molnar, who works in the nearby city of Hamilton, might have been kept alive by the snow acting as an insulating blanket."
BIZARRELY?! Dear god, doesn't anyone at the mail understand basic thermodynamics... oh wait. I take that back, of course they don't.

We know from the report that Mrs Molnar suffered frostbite to several fingers and hypothermia, which isn't that surprising, but the mail reports that she endured temperatures of -15c. Did she?

There's a couple of things at work here and the police report is right on the money. It's perhaps paradoxical that the best way to survive a blizzard is to bury yourself in snow. It's not so much the snow that kills you - it's the exposure to wind chill as the driving wind carries your body temperature away.

By actually covering yourself in fluffy white stuff (which is also full of stagnant air) you insulate your body from the effects of the wind and therefore receive some degree of protection. In fact, the insulating nature of snow means you can stay comparatively warm. Suffocation is a more likely consequence, but as the temperature drops our respiration slows so we use less of the precious air in our icy tomb.

Moreover, did anyone actually have a thermometer against Mrs Molnar's body? Of course not, those -15c temperatures (which are not all that extreme) would have been at ground level - most likely at night and probably using wind chill for effect.

While I wish Mrs Molnar a speedy recovery, I wish the Mail would try a bit harder.

No comments:

Post a Comment