Agonic line Definition & Meaning - Merriam-Webster
The meaning of AGONIC LINE is an imaginary line on the earth's surface connecting the north and south magnetic poles and passing through those points where there is no magnetic declination and where a freely suspended magnetic needle indicates true north.
Magnetic Declination Varies Considerably Across The United States
When the two poles align, declination is zero, and the line of zero declination is termed the agonic line. At points west of the agonic line, a magnetic needle will point east of true north (positive declination).
Magnetic declination - Wikipedia
Isogonic lines are lines on the Earth's surface along which the declination has the same constant value, and lines along which the declination is zero are called agonic lines. The lowercase Greek letter δ (delta) is frequently used as the symbol for magnetic declination.
agonic line - Glossary of Meteorology
Mar 27, 2024 · The line through all points on the earth's surface at which the magnetic declination is zero; that is, the locus of all points at which magnetic north and true north coincide. This line is a particular case of an isogonic line.
Historical Declination Viewer - National Centers for Environmental ...
Jun 2, 2023 · Toggle the isogonic lines, modeled pole locations, historical modeled pole track, and observed pole locations with the checkboxes on the left. View the map in Global Mercator, Arctic, or Antarctic views by clicking the tabs at the right of the screen.
Magnetic Declination (Variation) | NCEI - National Oceanic and ...
Magnetic declination, sometimes called magnetic variation, is the angle between magnetic north and true north. Declination is positive east of true north and negative when west. Magnetic …
Explainer: what happens when magnetic north and true north align?
Sep 16, 2019 · On a map of the Earth, lines along which there is zero declination are called agonic lines. Agonic lines follow variable paths depending on time variation in the Earth’s magnetic field.
Agonic line - Skysonar.com
The Agonic line is an imaginary line that runs across the surface of the Earth, where the magnetic and geographic poles align. Along this line, there is no magnetic variation, which means that the magnetic needle on a compass will point towards true north.
Agonic line | geomagnetism | Britannica
One hypothesis is that pilots failed to account for the agonic line—the place at which there is no need to compensate for magnetic compass variation—as they approached the Bermuda Triangle, resulting in significant navigational error and catastrophe.
AGONIC LINE Definition & Meaning | Dictionary.com
The agonic line is a line of longitude on which a compass will show true north, since where magnetic declination is zero, magnetic north coincides with geographic north. To the east of the agonic line the declination is westerly, and to the west it is easterly.