We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byAlexus Fabian
Modified about 1 year ago
1 Lab 09-6 ONLINE LESSON
2 If viewing this lesson in Powerpoint Use down or up arrows to navigate
3 Do take notes as we peruse through this lesson…
5 Contours refer to lines on a topographic map that represent height (elevation) above sea level…
6 A topographic map is a 2D representation of a 3D object on the ground…
7 A topographic map provides a view from a vantage point above the earth…contour lines allow a viewer to see elevation on a 2D depiction of the earth…
8 Take a look at LPC on the Livermore Quadrangle and see a whole bunch of brown lines…these are contour lines…they depict elevation …
9 The value in the blue circle represents an elevation of 500 feet above sea level…the red circle represents an elevation of 420 feet above sea level…
10 Here is an area just north of LPC…notice that contour lines are in two shades…bold thick brown and light thin brown…
11 The bold thick brown lines are called index lines…the thinner brown lines are contour lines…index lines are also contour lines…
12 A map cannot include every elevation…the map would be too crowded… instead intermittent reference points called index lines are provided…
13 The index lines are at 100 feet intervals…the thinner contour lines are at 20 feet intervals…
14 The contour interval is displayed on the bottom of the Livermore Quadrangle…
15 This means that the interval between all contour lines is 20 feet…
16 The interval between index lines is 100 feet
17 The elevation in the red ellipse is at the 600 feet elevation…the elevation is the same all along this line…
18 The elevation in the red ellipse is at the 700 feet elevation…the elevation is the same all along this line…
19 This elevation here is at the 800 feet elevation…the elevation is the same all along this line…but wait…there is no 800 index line number
20 A map is too small to include every bit of elevation information…so we have to deduce that the next line is at the 800 feet elevation…
21 If we start at 600 feet…
22 Then 700 feet
23 We can deduce that the next index line is at 800 feet…besides… this is towards the top of a hill…how do we know this
24 Hilltops are a series of closed concentric elevations… RULE # 11 of contour lines…
25 Another hint that this is a hilltop is the orientation of contour lines…in the red ellipse are a series of contour lines that form “V” shapes…
26 This is the rule of “Vs”…”Vs” as in more than one “V”…“Vs” point towards a higher elevation… RULE # 13 of contour lines
27 “Vs’ indicate a sloping valley or a downhill flowing stream…
28 The contour lines in the red ellipse are close together…the contour lines in the blue ellipse are widely spaced…
29 Closely spaced lines represent a steep feature…widely separated lines indicate a flat terrain… RULE # 10
30 A feature that looks like this is called a depression…little tick marks that point toward the center of a series of closed concentric elevations…
31 A top of a hill…
32 A gradient is the measure of steepness of a particular terrain… To determine gradient measure the horizontal distance from one point to another…
33 From the 828 elevation to the 600 feet elevation…the horizontal distance is 1,300 feet… Use the scale at the bottom of the map for reference…
34 Since elevation is in feet, use the mile scale…1 mile equals 6.7 cm…
35 The horizontal distance is 1,300 feet…the change in elevation is 228 feet… The change in elevation is calculated by subtracting 600 ft from 828 ft…
36 To determine the gradient…divide the vertical value by the horizontal value…. 228 ft 1300 ft The gradient is 0.17 then multiply this by 5,280 feet.
37 This provides a value of 926 feet…which means that for every horizontal mile (5,280 feet), there is 926 feet of vertical elevation…
39 END L09-6
Topography is the shape of land and includes area’s elevation, relief, and landforms. Elevation is the height above sea level of a point on Earth’s.
Essential Questions - Topography 1. What information do topographic maps and satellite views provide? 2. How do they predict how land will be reshaped.
Mapping. What is a map? It is a representation of something (Earth, stars, solar system, a building, etc… It is a representation of something (Earth,
TLW, with 100% participation, Define a topographic map and state its uses. Describe how contour lines show the elevations, shape, and slope of the land.
Reading Topographic Maps. Topography The lay of the land. The lay of the land. Shows relief using contour lines. Shows relief using contour lines. –Relief-
TLW, with 100% participation Identify landforms on a topographic map Use contour lines to interpret terrain features and elevation Apply knowledge of weathering.
Topography Maps. Topography The lay of the land. The lay of the land. Shows relief using contour lines. Shows relief using contour lines. –Relief- highs.
Topographic Maps A Topographic map, or contour map is used to show the shape of the Earth’s surface. Elevation is the height above or below sea level.
Topographic Maps What is this? A flat map showing the elevation for one hill.
Objective: Interpret topographic maps.. THE STUDY OF THE SHAPES AND FEATURES OF THE EARTH’S SURFACE.
Basics Of Topographic Maps. Topographic Maps (Contour Maps or Relief Maps) Two dimensional model of the Earth’s surface that represents 3-D world Show.
Topographic maps are useful because they represent the three-dimensional image of the land by using lines and symbols. 3D image to a 2D map Topographic.
Topographic Maps. A topographic map of part of Ithaca.
Earth Science Vodcast Network ESVN. Topographic Maps.
Topographic & Geologic Maps Plus: Latitude and Longitude!
Topographic Maps. Understanding Topographic Maps Topographic maps are two-dimensional representations of a portion of the three- dimensional surface of.
1-4 Topographic Maps. Let’s take a walk up a hill!
Sci. 1-3 Topographic Maps Pages A.Topographic maps - shows surface features of the Earth 1.They also show elevation (the height of an object above.
PSC 121 Prince George's Community College Topographic Maps More than a Road Map.
Introduction to Topographic Maps. Topographic Maps Two dimensional model of the Earth’s surface (represents 3-D world) Topographic maps are also known.
Topographic Maps TOPOGRAPHIC MAPS. Topographic map is a model, which attempts to show a 3-D world in a 2-D format.
Maps. What do we need in order to read a map? Direction Scale Legend.
Topographic Maps. What is a Topographic Map? ► Provides information about land elevations and landforms such as mountains, hills, and depressions.
Topographic Maps TOPOGRAPHIC MAPS. What are topographic maps? Topographic maps- maps that show changes in elevation of Earth’s surface Elevation- distance.
Relationship between 3D and 2D representation Definition: a graphical representation of the earth that includes the following: 1. the shape of the earth’s.
What is a topographic map? A topographic map is a map that shows changes and shape in the elevation of land.
1 Topographic Maps Show the shape of the Earth’s surface.
Topographic Maps. Lesson Objectives Define a topographic map and its uses. Define a topographic map and its uses. Describe how contour lines show the.
TOPOGRAPHIC MAPS Topographic maps show changes in elevation of Earth’s surface. These maps use lines, symbols, and colors to represent changes in elevation.
Topographic Maps. A map that shows the surface features of the earth (natural and built).
Topographic Map Skills. Topographic notes Topographic Map-includes contour lines drawn to represent changes in elevation. Topographic maps take 3 dimensional.
2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Topography LandformsTopo MapsContoursMisc.
Topographic Maps Topographic maps show the shape of Earth’s surface and other surface features, such as roads, buildings, streams, cemetaries, mines, etc.
Topographic Maps Unit 4.2 Types of Maps b b Climate maps give general information about the climate and precipitation of a region. Cartographers use.
Topographic Maps Created by T. Bates Hugo A. Owens Middle School Adapted and edited by B. Ferri.
Measuring Earth / Topographic Mapping. Mapping Basics Vocabulary: Contour Interval: the difference in elevation represented by each contour line on a.
Topographic Maps. Lesson Objectives Define a topographic map and state its uses. Define a topographic map and state its uses. Describe how contour lines.
Thursday Update SN (Journal Check Next Week!) 2.Grade Rock Cycle Lab & Types of Rocks WS 3.Topographic Map Notes 4.Lake Lackawanna WS.
Where is this?. How would you represent these, or any other landform, on a map? In other words, is it possible to show a three dimensional.
TOPOGRAPHIC MAPS What do topographic maps DO?!? In contrast to most maps, a topographic map shows the shape of the Earth’s surface by using contour lines.
Topographic Maps. Topographic Map: Topographic Map: – A contour map -
Topographic Maps. Topo Maps ► Topographic maps : show elevation of the land using contour lines. takes 3D landscapes and represents them in a 2D fashion.
Topographic Mapping Honors Earth Science Parkland High School.
Modern technology has changed the way we view and map Earth. Topographic maps show the shape of the land.
Topographic Maps T. Bates Hugo A. Owens Middle School.
Show the Shape of the Land Topographic Maps. What is a Topographic Map? Imagine you are on vacation with your family in a national park. You have a trail.
As we go through the power point, please do the following: Match your cards. Take notes in your science notebook. Label your map. topographyThe study…
specialized maps which show the highs and lows (relief) of the Earth’s surface.
Lesson 25 What is a contour map?. There are many kinds of maps. The maps we use most often are surface maps. A surface map is a drawing that shows all.
© 2017 SlidePlayer.com Inc. All rights reserved.