"Interpretation of Topographic Maps" Earth and Maps PPT Courseware 4

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"Interpretation of Topographic Maps" Earth and Maps PPT Courseware 4

Xiao Ming learned from his teacher that the height of Mount Everest is 8,844.43 meters. He went to the Qinghai-Tibet Plateau with his father during the summer vacation, but his child Dolma said that the height of the mountain was more than 4,000 meters.

why is that?

Altitude and relative altitude

Altitude (absolute height): The vertical distance above sea level at a location on the ground.

Relative height: The vertical distance that one location is above another location.

contour line

Contour line: A line connecting points with the same altitude.

Isobath: A line connecting points of the same depth in the ocean.

Think about it, how are contour lines drawn?

Features of contour lines:

1. Closed curve

2. Generally disjoint (except in special circumstances)

3. Same line and same height

4. Contour distances on the same contour topographic map are equal

5. The contour value represents the altitude, and the unit is generally meters.

The contour line is a closed curve, with values ​​gradually decreasing from the center to the surrounding areas.

The contour line is a closed curve, with values ​​gradually increasing from the center to the surrounding areas.

3. Layered color topographic map

Blue represents the ocean

Green represents plains

Yellow represents plateau,

hills and mountains

Brown represents mountains

White represents above the snow line

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For more information about the "Interpretation of Topographic Maps Earth and Maps" PPT courseware, please click on the Interpretation of Topographic Maps PPT Earth and Maps PPT tag.

"Interpretation of Topographic Maps" PPT download:

"Interpretation of Topographic Maps" PPT Download Part One: New Lesson Knowledge 1. Introduction of New Lessons Xiao Ming competed with TOM to climb Mount Tai. The smart TOM quickly climbed to the top of the mountain with the help of a map. Does anyone know what map it is? They faced Mount Tai from the foot of the mountain to the top...

"Interpretation of Topographic Maps" PPT courseware:

"Interpretation of Topographic Maps" PPT courseware Part 1: Learning objectives 1. What is the definition and calculation of altitude and relative altitude? 2. What is the definition of terrain? What are the five common types of terrain and their characteristics? 3. Identify the slope size and cliffs, peaks, saddles, mountains...

"Interpretation of Topographic Maps" PPT:

"Interpretation of Topographic Maps" PPT Part One Content: New Lesson Learning The vertical distance between a certain point and another point is called the relative height. The vertical distance between a certain point and the sea level is called the absolute height, which is the various ups and downs of the altitude surface. Collectively called terrain. Five kinds of ground...

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Update Time: 2024-09-27

This template belongs to Geography courseware People's Education Edition Geography for Grade 7 Volume 1 industry PPT template

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