"Changes and Distribution of Precipitation" Weather and Climate PPT Courseware 6

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"Changes and Distribution of Precipitation" Weather and Climate PPT Courseware 6

Precipitation: ______, ______, ____________, etc. falling in the atmosphere are collectively called precipitation.

It is the main form of precipitation.

Talk about the impact of precipitation on humans.

It hasn’t rained in the past two months

24 hours of continuous rain

It snowed heavily in a city

Impact of precipitation: agriculture, industry, commerce, transportation, tourism, entertainment, construction, health, life, etc.

in conclusion:

Precipitation has an important impact on human production and life.

Differences in precipitation

In a region, the amount of precipitation varies in different months of the year.

(Seasonal changes in precipitation)

In the same area, precipitation varies in different years.

(Interannual changes in precipitation)

Interpretation of precipitation histograms

1. Is precipitation evenly distributed in each month?

2. Which months have more precipitation? In what season is it mainly concentrated?

3. Which months have less precipitation? In what season is it mainly concentrated?

World annual precipitation distribution map

1. How many millimeters does the annual precipitation in places near the equator mostly exceed?

The annual precipitation in the polar regions is mostly below how many millimeters?

2. Near the Tropic of Cancer, what is the difference in annual precipitation on the east and west sides of the mainland?

There is more precipitation on the east coast of the mainland and less precipitation on the west coast of the mainland.

3. What is the difference in annual precipitation in mid-latitudes, inland and coastal areas?

There is less precipitation in inland areas and more precipitation in coastal areas.

Summary: Distribution rules of annual precipitation in the world.

1. There is more precipitation near the equator and less precipitation in the polar regions.

2. On both sides of the Tropic of Cancer, the east coast of the mainland receives more precipitation, while the west coast of the mainland receives less precipitation.

3. There is more precipitation in mid-latitude coastal areas and less precipitation in inland areas.

4. In mountainous areas, windward slopes receive more precipitation and leeward slopes receive less precipitation.

Class exercises

1. ____, ____, ____, etc. that fall from the atmosphere are collectively called precipitation. The main form of precipitation is ____.

2. According to the amount of rainfall per unit time, the meteorological department divides rainfall into different levels such as ____, ___, ___, ____. And match the corresponding symbols under the level.

3. The basic instrument for measuring precipitation is ______, and the unit used is ______.

4. Near the Tropic of Cancer, precipitation is ____ on the east coast of the continent and ____ on the west coast of the continent.

The changing trend of world annual precipitation from the equator to the poles is ( )

A gradually decreases B gradually increases

C increases first and then decreases D decreases first and then increases

Which of the following statements is correct ( )

A There is less precipitation on the windward slopes of mountains

B There is less precipitation on the west coast of the mainland near the Tropic of Cancer

C There is a lot of precipitation on the leeward slopes of mountains

D There is a lot of precipitation in the polar regions

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Update Time: 2024-11-22

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

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