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geomag
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1995-02-27
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549b
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11 lines
If you have a modem, then you can call the USGS, Branch of Global Seismology
and Geomagnetism. This is a US Government computer, so it has some odd
parameters. Set your modem for 300 or 1200, 7, E, 1. The toll-free number is
800-358-2663. When you finally get to the main menu, select M for Geomagnetic
Field Values (GEOMAG). There is a helpfile available. You will need to know
the latitude, longitude, elevation, and date for which you wish to know the
magnetic declination.
Access to the entire text files is thru <CONTENTS>.