GEOMAG: A Geomagnetic Field Program



The U.S. Geological Survey (USGS) has made available a new computer service for obtaining model values of the geomagnetic elements, such as declination and total field intensity. The service is part of the on-line information system of the USGS Branch of Global Seismology and Geomagnetism and is based on an interactive program called GEOMAG. The system is accessible with a computer terminal and modem over the commercial telephone network or (from outside Colorado only) a toll-free WATS line.