What is the change and distribution of temperature?

The change and distribution of temperature are as follows:

1, temperature refers to the temperature of the atmosphere. In life, people are more concerned about the highest and lowest temperatures in a day.

2. To describe the temperature in an area, we also need to use daily average temperature, daily average temperature and annual average temperature.

3. The temperature change in an area is regular, and the temperature change with one day as the cycle is called daily temperature change; The annual temperature change is called annual temperature change.

4. Show the change of temperature with time by using temperature graph.

5. In a day, the highest temperature appears around 2 pm, and the lowest temperature appears around sunrise; The difference between the highest temperature and the lowest temperature is called the daily temperature difference.

6. In a year, the temperature in the northern hemisphere is usually the highest in July on the mainland, the lowest in 65438+ 10, the highest in August and the lowest in February on the ocean. (The southern hemisphere is the opposite). The difference between the highest bright average temperature and the lowest monthly average temperature in a year is called the temperature annual range.

7. The temperature observation instruments, including the thermometer, the highest thermometer and the lowest thermometer, are all placed in a louver (off the ground 1.5 meters). Automatic meteorological observation is recorded every hour, and the working hours are recorded as 8, 14, 20 and 2 respectively.

8. The temperature distribution varies greatly around the world, and the horizontal distribution of temperature is usually represented by an isotherm diagram. On the isotherm diagram, the temperature of each point on the same isotherm is equal.

9. According to the extension direction of the isotherm, the direction of temperature change is explained: if the isotherm extends in the east-west direction, there is a temperature difference between the north and the south.

10. Analyze the temperature difference according to the density of isotherms: for example, in areas with sparse isotherms, the temperature difference is small, whereas in areas with dense isotherms, the temperature difference is large (there is a saying in Xinjiang that fur coats wear yarn at noon).