Definition

Noun: * A line on a map connecting points of equal magnetic inclination: An "isoclinic line" is a type of contour line used in geomagnetism and cartography. It connects all locations on the Earth's surface where the magnetic dip, or the angle the Earth's magnetic field makes with the horizontal plane, is identical.

Usage

• The term is used specifically in scientific contexts related to geophysics, navigation, and map-making to describe and visualize the pattern of the Earth's magnetic field.
• It is a technical term, not commonly used in everyday conversation.

Examples

• Noun:
  • The map of magnetic declination also featured prominent isoclinic lines.
  • Navigators in the past studied charts with isoclinic lines to understand local magnetic variations.
  • The isoclinic line for zero degrees inclination, called the magnetic equator, does not align with the geographic equator.

Advanced Usage

• "Isoclinic chart": A map that primarily displays a network of isoclinic lines to represent the global pattern of magnetic inclination.
  • The scientist consulted an isoclinic chart for her research on the magnetosphere.

Variants and Related Words

• Isoclinic (Adjective): Of or relating to equal magnetic inclination.
  • The isoclinic data was crucial for the survey.
• Isogonal or Isogonic Line (Noun): A line connecting points of equal magnetic declination (the angle between magnetic north and true north).
• Isogram or Isopleth (Noun): A general term for any line on a map connecting points of equal value for a given quantity (e.g., temperature, pressure, magnetic value).

Synonyms

• Isocline: A less common but direct synonym.
• Magnetic inclination contour: A descriptive phrase explaining the concept.

Related Phrases

• Line of equal dip: An older or more descriptive term for an isoclinic line.
  • The line of equal dip was carefully plotted on the navigational chart.

Noun

1. an isogram connecting points of equal magnetic inclination