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SEES Midterm
SEES Midterm

Island Construction * Topographic Map
Island Construction * Topographic Map

Answers
Answers

Name - Cedar Hill ISD
Name - Cedar Hill ISD

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Regents Earth Science – Unit 3: Measuring Earth
Regents Earth Science – Unit 3: Measuring Earth

... any location to the right of the Prime Meridian has a longitude of east any location to the left of the Prime Meridian has a longitude of west ...
GEOMETRY NAME 12.12.11 Theorem 3.7.1 If corresponding angels
GEOMETRY NAME 12.12.11 Theorem 3.7.1 If corresponding angels

Part IV: Plate Tectonics, Topography and Ecology Due: 5/23 1. What
Part IV: Plate Tectonics, Topography and Ecology Due: 5/23 1. What

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Earth Science Notes - Bridgman Elementary School

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Chapter 1 Introduction to Earth Science Chapter Test Earth Science

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Oceanic Crust

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Map Skills Notes

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Vocabulary for Unit Four: Landforms and Topography

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Quiz 1

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Unit

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This test review is in preparation for a chemistry test

Name Date ______ Plate Tectonics and Landforms Climb the
Name Date ______ Plate Tectonics and Landforms Climb the

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Notes for the Test Word Definition Pangaea Pangaea is the name

contour lines - cloudfront.net
contour lines - cloudfront.net

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Contour line



A contour line (also isoline, isopleth, or isarithm) of a function of two variables is a curve along which the function has a constant value. It is a cross-section of the three-dimensional graph of the function f(x, y) parallel to the x, y plane. In cartography, a contour line (often just called a ""contour"") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness of slopes. The contour interval of a contour map is the difference in elevation between successive contour lines.More generally, a contour line for a function of two variables is a curve connecting points where the function has the same particular value. The gradient of the function is always perpendicular to the contour lines. When the lines are close together the magnitude of the gradient is large: the variation is steep. A level set is a generalization of a contour line for functions of any number of variables.Contour lines are curved, straight or a mixture of both lines on a map describing the intersection of a real or hypothetical surface with one or more horizontal planes. The configuration of these contours allows map readers to infer relative gradient of a parameter and estimate that parameter at specific places. Contour lines may be either traced on a visible three-dimensional model of the surface, as when a photogrammetrist viewing a stereo-model plots elevation contours, or interpolated from estimated surface elevations, as when a computer program threads contours through a network of observation points of area centroids. In the latter case, the method of interpolation affects the reliability of individual isolines and their portrayal of slope, pits and peaks.
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