Re: Global warming could make flights bumpier

Article View: sci.physics

Article #8154

#8154

From: jimp
Date: Sat, 13 Apr 2013 23:22

38 lines
2377 bytes

In sci.physics Surfer <no@spam.net> wrote:
> On Thu, 11 Apr 2013 17:30:36 -0000, jimp@specsol.spam.sux.com wrote:
> 
>>In sci.physics Surfer <no@spam.net> wrote:
>>> 
>>> Warming of air near the earth's surface could increase the average
>>> strength of turbulence by 10% to 40% by the middle of the century.
>>> http://blogs.physicstoday.org/newspicks/2013/04/global-warming-could-make-north-atlantic-flights-bumpier/
>>
>>The area of the atmosphere studied is 3 orders of magnitude higher than
>>airplanes fly.
>>
> Are you sure that is what you mean?

It was a unit conversion screw up in going to feet, which is what I 
fly in.

Anyway...

Turbulence is caused by vertical air currents, not horizontal ones.

Vertical air currents are caused by ground heating and convection in
storm cells, i.e. thunderstorms.

No one flys through storm cells.

Turbulance from ground heating is pretty much over above about 4,000 feet
except over patchy desert areas on really hot days where it may go a bit
higher.

Horizontal currents cause shear.

This article seems to me to be a bunch of arm waving.

-- 
Jim Pennino

Technical Details

Message-ID: <2u5p3a-t3f.ln1@mail.specsol.com>

Path:

arc1-ca.pugleaf.net!p18ni78900wiv.0!nntp.google.com!feeder1.cambriumusenet.nl!82.197.223.108.MISMATCH!feeder2.cambriumusenet.nl!feed.tweaknews.nl!216.196.110.142.MISMATCH!border3.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!news.nobody.at!rt.uk.eu.org!aioe.org!.POSTED!not-for-mail

References:

<vho9m897l4t3rn4spbkrisj1tnlbb88duq@4ax.com> <ri8j3a-bjo.ln1@mail.specsol.com> <f2ngm85oef4790jlgkkneg5kgvd1o7qaam@4ax.com>

Show Full Headers

Complete Article Headers

X-Google-Thread: 9e5a772d74,98a57c92e116181e
X-Google-Attributes: gid9e5a772d74,public,usenet
X-Google-NewGroupId: yes
X-Google-Language: ENGLISH,ASCII-7-bit
X-Received: by 10.180.106.73 with SMTP id gs9mr6635276wib.2.1366254283310;
        Wed, 17 Apr 2013 20:04:43 -0700 (PDT)
MIME-Version: 1.0
Path: arc1-ca.pugleaf.net!p18ni78900wiv.0!nntp.google.com!feeder1.cambriumusenet.nl!82.197.223.108.MISMATCH!feeder2.cambriumusenet.nl!feed.tweaknews.nl!216.196.110.142.MISMATCH!border3.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!news.nobody.at!rt.uk.eu.org!aioe.org!.POSTED!not-for-mail
From: jimp@specsol.spam.sux.com
Newsgroups: sci.physics,aus.politics
Subject: Re: Global warming could make flights bumpier
Date: Sat, 13 Apr 2013 23:22:10 -0000
Organization: Aioe.org NNTP Server
Lines: 38
Message-ID: <2u5p3a-t3f.ln1@mail.specsol.com>
References: <vho9m897l4t3rn4spbkrisj1tnlbb88duq@4ax.com> <ri8j3a-bjo.ln1@mail.specsol.com> <f2ngm85oef4790jlgkkneg5kgvd1o7qaam@4ax.com>
NNTP-Posting-Host: 5FQzpG9PgxCHgWX2ynv4yg.user.speranza.aioe.org
X-Complaints-To: abuse@aioe.org
User-Agent: tin/2.0.1-20111224 ("Achenvoir") (UNIX) (SunOS/5.10 (i86pc))
X-Notice: Filtered by postfilter v. 0.8.2
Bytes: 1938

Reply to Parent Message