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

Description

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

New course standard requirements:

1. Read the world annual average and January and July average temperature distribution maps, and summarize the world temperature distribution characteristics.

2. Use temperature data to draw a temperature curve and describe the changing characteristics of temperature over time.

Daily average temperature = average of multiple observations in a day

Monthly average temperature = average daily temperature in January

Annual mean temperature = average mean temperature for each month of the year

2. Changes in temperature

1. Diurnal changes in temperature

The daily temperature change is called the daily temperature change.

Discussion: Based on life experience, when does the highest temperature occur in a day?

2. Annual changes in temperature

Thinking: Based on life experience, in which months of the year do the highest and lowest average monthly temperatures occur?

Annual temperature range = highest monthly average temperature – lowest monthly average temperature

Isotherm plot

Isotherm: A line connecting points with the same temperature based on measurements

Low temperature center: The middle temperature is lower than the surrounding area. It is a low temperature center. It is usually formed because it is a mountainous area.

Temperature distribution:

1. Generally speaking

Low latitudes - high temperatures

High latitudes - low temperatures

latitude factor

2. Same latitude

Summer land and winter sea - high temperature

Summer sea, winter land - low temperature

sea ​​and land factors

3.Mountains

Low altitude - high temperature

High altitude - low temperature

terrain factors

Class fill-in-the-blank exercises

1: Changes in temperature, the highest temperature in a day occurs in ( ); the lowest temperature occurs in ( ); in a year, the highest temperature on land in the Northern Hemisphere is ( ) month, the lowest temperature is ( ) month, and the highest temperature on the ocean is ( ) month , the lowest temperature is ( ) month.

2: The daily temperature range is the difference between ( ) and ( ) in a day; the annual temperature range is the difference between ( ) monthly average temperature and ( ) monthly average temperature in a year.

3: Differences in temperature and latitude, generally ( ) latitude temperature ( ); ( ) latitude temperature ( ). Differences between sea and land, summer ( ) temperature ( ), ( ) temperature ( ) at the same latitude; terrain difference, in mountainous areas, the temperature varies ( ) with altitude, and the temperature decreases ( ) with every 100m increase in altitude.

4: Looking at the world average temperature distribution map, we can know that the isotherm of the annual average temperature of 20°C is basically consistent with ( ) in the southern and northern hemispheres, so the area with the average temperature ( ) that year is the ( ) zone, and the annual average temperature is ( ) and The Arctic and Southern Circles are basically consistent.

5: We use ( ) to represent the temperature distribution. The isotherm is ( ). The one with low central temperature is called ( ) center, and vice versa is called ( ) center.

6: Where the isotherms ( ) are, the difference in temperature is ( ); where the isotherms are sparse, the difference in temperature is ( ).

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"Changes and Distribution of Temperature" Weather and Climate PPT Courseware 4:

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Update Time: 2024-09-09

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