Mapping Earth Midterm Review

Slides:

Advertisements

Similar presentations

Topographic Maps Obj- 7. Describe how contour lines and contour intervals are used to show elevation on topographic maps 8. List the 5 rules of topographic.

Advertisements

Chapter 3 Topographic Maps

Chapter 3 Topographic Maps

Topographic Maps TOPOGRAPHIC MAPS.

Topographic Maps.

Visualizing Earth’s Surface

OBJECTIVES: Describe isolines and contour lines

Contour Lines A method used on maps and landscape plans to show the “lay of the land” or topography (slopes, depressions, etc.)

Topographic Maps Created by T. Bates Hugo A. Owens Middle School

Introduction to Topographic Maps

Maps and Globes.

Maps Maps are model representations of a three dimensional world. Latitude and Longitude give us two dimensions Elevation gives us the third In order to.

Topographic Map Notes FIELD- Area where a value is measured. ISOLINES- a line connecting points of equal value.

Topographic Maps September, 2011.

RULES of Contour Mapping.

Interpreting a Topographic Map

Mapping Earth’s Surface

Aim: How do we read Topographic Maps? Do Now: In your notes, list all the different types of landforms/features of Earth that you can think of. Example:

Isolines: contour lines on an elevation map Isotherms: contour lines on a temperature map Isobars: contour lines on an air pressure.

OBJ: Given notes and activity sheets SWBAT construct and interpret isoline maps such as a weather map with 70% accuracy. DN: Copy notes ACT: Introduction.

Aim: How do we read/use Topographic Maps?

Modeling the Earth Topic 2 Earth Science Ms. Cooke

Interpreting a Topographic Map

Isolines Isolines = lines that connect points of equal values. (iso = equal) The “values” can be anything… temp, pressure, elevation, etc.

Topographic Maps. Gradient The rate of change from place to place within the field is called the gradient. It is also called the ____________________.

Measuring Earth / Topographic Mapping. Mapping Basics Vocabulary: Contour Interval: the difference in elevation represented by each contour line on a.

Topographic (Topo) Maps (also called Contour Maps)

What are topographic maps?. Topographic maps are also called contour maps A topographic map is a field map where the field value is elevation. Elevation-

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.

Introduction to Topographic Maps

Introduction to Topographic Maps

Visualizing Earth’s Surface

Intervals Depressions Gradients Rivers

1) Using the review books define the following:

Topographic Maps.

Isolines An isoline is a line connecting points of equal value.

Introduction to Topographic Maps

Aim: How do we read/use Topographic Maps?

Earth's Dimensions II.

Topic 3: Measuring Planet Earth

Aim: To be able to interpret a topographic Map.

Bellwork Review.

Topographic Maps.

Topographic Maps.

Field Maps Aim: What are fields?.

Contour Lines and Elevation

Introduction to Topographic Maps

Topographic Maps.

Isolines An isoline is a line connecting points of equal value.

Isolines and Topographic Maps

Mapping Earth’s surface

Topographical Maps.

An isoline is a line connecting points of equal value.

Topographic Maps.

Introduction to Topographic Maps

Topographic Map Notes FIELD- Area where a value is measured.

Isolines An isoline is a line connecting points of equal value.

Interpreting a Topographic Map

Introduction to Topographic Maps

Bellwork Review.

Introduction to Topographic Maps

Isolines and Topographic Maps

Introduction to Topographic Maps

Introduction to Topographic Maps

Introduction to Topographic Maps

Cartography 101.

Isolines and Topographic Maps

Topographic Maps

Presentation transcript:

Mapping Earth Midterm Review Topics: Isolines Drawing isolines Topography (Reading Contour maps) Finding Interval Hills Steep/gradual slopes Gradient River Direction Maximum/minimum elevation Depressions (hachured marks) Profiles

Isolines Connect points of equal value Isotherm: temperature Isobars: barometric (air pressure) Contour lines: elevation

Drawing Isolines Connect the points with the same value Estimate between which other values the line should be drawn Lines should be curved, not angular Extend lines to edge of map Never cross isolines

Topography (Contour maps) 1-dimensional representation of a 3D landscape Shows the shape of the land

Finding Interval Difference between one contour line and the next May be given on map Labeled lines are Index Contours

Subtract the value of two consecutive Index Contour Lines Then count how many contour lines there are from one Index Contour to the next (only count one of the Index Contours) Divide the difference by the # of lines 300-200=100m 5 lines 100/5= 20m

Hills Hills or mountains are shown by contour lines that form closed loops

Steep/gradual slopes Steep Slope: contour lines are close together Gradual Slope: contour lines are far apart

Gradient Difference in Elevation Distance between two points Label with given units!

River Direction Contour lines bend upstream

Ocean is Sea Level = 0 elevation

Depressions (hachured marks) The first hachured line is the same value as the last contour line. Each hachured line decreases by the contour interval

Ocean= Interval = 1st Hachured line = 20 Elevation at point A= 10 10

Inferring Maximum/minimum elevation Max: Value just below what the next contour line would equal Z= Min: Value just above what the next contour line would equal Y= Z 99 ft 21 ft Y

Maximum Elevation Represented by Triangle symbol

Profiles Cross section (side view) of the contour map Use mark and slide method Keep a STEADY hand No numbers on x-axis Use contour interval on Y-axis

What is the contour interval? SE What is the max elevation at point E? What direction is Mud Creek flowing? 139 20 What is the contour interval? SE