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[BULK] - RE: [pct-l] Campo to Morena Day Hike (was 16+ mi. drystretches)

I read in an old Backpacker that there is a so-called cold zone, or
katabatic zone. When camping, the article said, you should neither camp in
the absolute bottom of a valley, nor at the top of a ridge. In the valley
there is cold air that is somehow trapped and will keep cold throughout the
night and the morning.

At least, that's what I remember from the word katabatic (or is it
catabatic?)

Saskia

> From: "Judson Brown" <judson@jeffnet.org>
> Date: Mon, 7 Feb 2005 17:24:12 -0800
> To: <pct-l@mailman.backcountry.net>
> Subject: RE: [BULK] - RE: [pct-l] Campo to Morena Day Hike (was 16+ mi.
> drystretches)
> 
> I think katabatic refers to strong, cold winds which occur in polar regions,
> especially over ice caps. Antarctic explorers had to deal with them
> constantly. The air just above the ice cap in the center of the continent-
> which is up to 10000' above sea level- is cooled by the ice. Cool air sinks,
> and you get near constant, gale-force winds screaming downhill toward the
> edges of the continent. Tied in with this is the fact that the atmosphere
> over ice caps tends to lean toward high pressure systems, and wind blow away
> from these.
> 
> I don't know if this applies to the area around Morena, where the biggest
> ice cap in inside Oilcan's cooler. ;)
> 
> Judson 
> Ashland
> 
> -----Original Message-----
> From: pct-l-bounces@mailman.backcountry.net
> [mailto:pct-l-bounces@mailman.backcountry.net]On Behalf Of Mike Saenz
> Sent: Monday, February 07, 2005 2:04 PM
> To: Paul; pct-l@mailman.backcountry.net
> Subject: RE: [BULK] - RE: [pct-l] Campo to Morena Day Hike (was 16+ mi.
> drystretches)
> 
> 
> Katabatic!
> 
> Yes! That was it!
> 
> Never heard of such a term...but the area from Campo to Cibbetts is
> Katabatic!
> 
> (I think it's an old Indian word meaning "It's cold enough to freeze
> your loin-cloth-snake off")
> 
> 
> M i c h a e l   S a e n z
> McLarand Vasquez Emsiek & Partners, Inc.
> A r c h i t e c t u r e    P l a n n i n g    I n t e r i o r s
> w  w  w  .  m  v  e  -  a  r  c  h  i  t  e  c  t  s  .  c  o  m
> 
> 
> -----Original Message-----
> From: pct-l-bounces@mailman.backcountry.net
> [mailto:pct-l-bounces@mailman.backcountry.net] On Behalf Of Paul
> Sent: Monday, February 07, 2005 1:47 PM
> To: pct-l@mailman.backcountry.net
> Subject: [BULK] - RE: [pct-l] Campo to Morena Day Hike (was 16+ mi. dry
> stretches)
> 
> Katabatic?
> 
> Subject: RE: [pct-l] Campo to Morena Day Hike (was 16+ mi. dry
> stretches)
> 
> Somebody once described the condition something like, "inversion
> zone"??? "conversion zone"???
> Something about the way the topography creates a "cold sink", trapping
> colder air while warmer air is close and all around...
> 
> 
> 
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