isogonic chart
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Isogonic — I so*gon ic, a. [Iso + Gr. gwni a angle.] Pertaining to, or noting, equal angles. [1913 Webster] {Isogonic lines} (Magnetism), lines traced on the surface of the globe, or upon a chart, connecting places at which the deviation of the magnetic… … The Collaborative International Dictionary of English
Isogonic lines — Isogonic I so*gon ic, a. [Iso + Gr. gwni a angle.] Pertaining to, or noting, equal angles. [1913 Webster] {Isogonic lines} (Magnetism), lines traced on the surface of the globe, or upon a chart, connecting places at which the deviation of the… … The Collaborative International Dictionary of English
isogonic line — noun A line on a chart or map showing points of constant magnetic declination. See Also: isogonal, isogon, agonic line … Wiktionary
isogonic lines — Irregular lines across an aeronautical chart, along which the magnetic north and true north are separated by a given angle. This angle is known as a compass variation … Aviation dictionary
magnetic chart — A chart showing the distribution of one of the magnetic elements, such as by isogonic lines. Also called an isogonic chart. See isogonic lines … Aviation dictionary
Aeronautical chart conventions (United States) — This article describes the graphic conventions used in Sectional charts and Terminal area charts published for aeronautical navigation under Visual Flight Rules in the United States of America. The charts are published in accordance with… … Wikipedia
Magnetic declination — Example of magnetic declination showing a compass needle with a positive (or easterly ) variation from geographic north. Magnetic declination is the angle between magnetic north (the direction the north end of a compass needle points) and true… … Wikipedia
Contour line — This article is about lines of equal value in maps and diagrams. For more meanings of the word contour , see Contour (disambiguation). The bottom part of the diagram shows some contour lines with a straight line running through the location of… … Wikipedia
isogonal — A line drawn on a map or a chart joining points of equal variation (magnetic declination). On aeronautical charts, isogonic lines appear as irregular dashed lines (−3° E), and their values also are indicated alongside the lines. The annual change … Aviation dictionary
plan — I (New American Roget s College Thesaurus) Formulated scheme for getting something done Nouns 1. plan, scheme, design, project, undertaking; aim, intention; proposal, proposition, suggestion; resolution, resolve, motion; precaution, provision,… … English dictionary for students
Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… … Wikipedia
