Re: [Phys-l] polar grid navigation

[brian whatcott <betwys1@sbcglobal.net>]

Splendid idea!

As in so many other areas, the specialist training is now carried on 
line - specifically the Cranfield training for ALTPs - for whom polar 
grid navigation is a tested knowledge area -  particularly interesting 
to note that though the grid is often oriented on Greenwich, it is 
likely in exam questions to be oriented on the Greenwich anti-meridian 
(the 180 degree meridian) - which makes the feeble "south west of the 
south pole" apologia rather less than convincing...     :-)

Brian W

P.S if quoting sources - try to find QUALIFIED sources, not people who 
have been flown by pilots who DO know grid navigation into the area.

On 2/16/2012 2:09 AM, Michael Edmiston wrote:
> Well... you might try finding something about it from people who have
> actually been in Antarctica and have used grid-north maps.
>
> Below are some things I found.
>
> * * *  From
> http://passporttoknowledge.
/snip/
> -----Original Message-----
> From: phys-l-bounces@carnot.physics.buffalo.edu
> [mailto:phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of brian
> whatcott
> Sent: Thursday, February 16, 2012 12:28 AM
> To: phys-l@carnot.physics.buffalo.edu
> Subject: Re: [Phys-l] polar grid navigation
>
> On 2/15/2012 4:27 PM, Bernard Cleyet wrote:
> > On 2012, Feb 15, , at 07:11, chuck britton wrote:
> >
> > > At 9:58 AM -0500 2/15/12, Edmiston, Mike wrote:
> > > > So... after all the messages posted on this list-serv ridiculing the
> > > > news reports... it turns out the news reports were correct.  If you
> > > > use the pseudo grid for Antarctica that navigators and scientists in
> > > > Antarctica are known to use (where grid north aligns with the prime
> > > > meridian), then Lake Vostok is indeed southeast of the south pole.
> > > > Actually I would call it "east southeast".
> > http://geology.com/world/antarctica-map.jpg
> >
> > http://en.wikipedia.org/wiki/Boxing_the_compass
> >
> > Yes, number 11.
> Oh my - given a whiff of polar grid navigation, which allows a direction
> indicator once set to hold a chosen course, I see we are leaping to (totally
> unwarranted) conclusions about the Vostok Lake lying to the south west of
> the pole.
>    Grid navigation specifies courses 0 to 359 degrees grid..... not often
> thought of as sou,sou-east, by east and all that good stuff....
> And a polar projection does not constitute a polar grid for navigation in
> itself.....
>
> But why am I burning electrons so fruitlessly?   :-)
>
> Brian W
>
>
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