RE: Magnetic variation.

2004-02-28 Thread Anne Bruvold
Dear Tony Extreme latitudes are not extreme only when it comes to the climate and the behavior of the sun. Using a compass to find geographical north at Longyearbyen might be easier said than done. The alignment of the magnetic field at Longyearbyen might vary during the day and from day to

Re: Magnetic variation.

2004-02-28 Thread J. Tallman
Here's the site I use for magnetic declination values: http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl Hope this helps, Jim Tallman www.artisanindustrials.com [EMAIL PROTECTED] -

Re: Magnetic variation.

2004-02-28 Thread John Carmichael
Tony, what website do you use for magnetic variation? I ask because I need to know the MV for Oxford. I'm going to take my compass so that I can get wall declinations of SGS in Oxford. Have fun installing your new dial. Hope you get some sun. John John L. Carmichael Jr. 925 E. Foothills Dr.

Re: Magnetic variation.

2004-02-28 Thread Richard Langley
The DoD World Magnetic Model predicts for 1 March 2004 at the given location a magnetic declination of 4.06 degrees (compass will theoretically point 4.06 degrees to the east of true north). A different magnetic model, the International Geomganetic Reference Field, gives 4.22 degrees. Take your

Re: Magnetic variation.

2004-02-28 Thread Robert Hough
I am sure you are well aware of the duration of sunlight at that time of the year at that location (assuming the sun peeks through the clouds) but just for your convenience, here is a graph of it. http://home.comcast.net/~houghbob/sundial/spitzbergen.pdf Robert Hough Shadow Master 32.37 N

Magnetic variation.

2004-02-28 Thread tony moss
Fellow Shadow Watchers, Next week I will be setting off for Longyearbyen on Spitsbergen in the Svalbard group of islands 500 miles north of Tromso to install their new 24 hour stainless steel sundial. As any diallist is painfully aware the most probable event for dial

RE: Magnetic variation.

2004-02-28 Thread tony moss
Hi Anne, Extreme latitudes are not extreme only when it comes to the climate and the behavior of the sun. Using a compass to find geographical north at Longyearbyen might be easier said than done. The alignment of the magnetic field at Longyearbyen might vary during the day and from day to