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Mapping the Surface

Mapping the Surface. Field Maps. A Field is a region that has a measurable quantity such as temperature, pressure, elevation, etc. that is recorded at every point. Each plotted point is the temperature at that location in the field. Isolines. Connect points of equal field values

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Mapping the Surface

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  1. Mapping the Surface

  2. Field Maps • A Field is a region that has a measurable quantity such as temperature, pressure, elevation, etc. that is recorded at every point

  3. Each plotted point is the temperature at that location in the field.

  4. Isolines • Connect points of equal field values • Isotherms connect points of equal temperatures • Isobars connect equal pressures • Contour Lines connect points of equal elevations

  5. Gradient • Gradient, or slope, is the rate at which a field value changes • ESRT has the equation on the cover ROC = Change in field value Distance

  6. Interval • The difference in value between one isoline to the next • The interval must remain the same for every location on a map. (Doesn’t change)

  7. Topographic Maps • Used to show topography (physical features) of land • Ex. Mountains, valleys, cliffs and depressions • Uses contour lines

  8. Contour Map of a Hill

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