You searched for: Author National Geophysical Data Center Remove constraint Author: National Geophysical Data Center Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Subject Magnetic declination Remove constraint Subject: Magnetic declination Institution Stanford Remove constraint Institution: Stanford Place Alaska Remove constraint Place: Alaska Place Cuba Remove constraint Place: Cuba Data type Line Remove constraint Data type: Line Year 2010 Remove constraint Year: 2010 Bounding Box 50.273438 19.12441 59.589844 28.748397 Remove constraint Bounding Box: 50.273438 19.12441 59.589844 28.748397
2010. National Geophysical Data Center. This map layer shows isogonic lines (lines of constant declination of the Earth's magnetic field), derived from the International Geomagnetic Refer... National Atlas of the United States.
2010. National Geophysical Data Center. This map layer shows isoporic lines (lines of equal annual change, or secular variation, in the declination of the Earth's magnetic field), derived... National Atlas of the United States.