The figure below shows the vertical distribution of near-surface temperature observed five times on a certain day in the mid-latitude of the northern hemisphere. It was sunny that day, and the sunrise

The figure below shows the vertical distribution of near-surface temperature observed five times on a certain day in the mid-latitude of the northern hemisphere. It was sunny that day, and the sunrise time was 5 o'clock. Read pictures

Question 1:A

Question 2:B

Test analysis:

Question 1: the vertical distribution law of troposphere temperature decreases with the increase of height, and the upper and lower atmospheric structures are conducive to convection, so the atmosphere is relatively stable. As can be seen from the figure, the inversion occurs at 5 o'clock and 20 o'clock, the atmosphere is stable, and the inversion disappears at 12 and 15. Choose a for the correct answer. Atmospheric heat mainly comes from ground radiation, and the gradual disappearance of inversion from top to bottom also illustrates this problem. The daily temperature difference can be judged by observing the temperature difference between temperature curves, and the lower part is obviously larger than the upper part. Choose a for the correct answer.

Question 2: It is inferred from the sunrise time of 5: 00 that the sunset time is 19: 00, and it is known that the day is long and the night is short, and the sun is high at noon, so the shadow of ground objects at noon will not be the longest in a year, because the higher the sun, the shorter the shadow of ground objects. The place is located in the mid-latitude of the northern hemisphere, and the noon sun can't be located in the north. In summer, the higher the latitude in the northern hemisphere, the longer the day, and the longer the day in the mid-latitude area, because Haikou's geographical latitude is about 20 north latitude and is located at a low latitude. Choose b as the correct answer.

Comments: This question is moderately difficult. Based on the vertical distribution of near-surface temperature observed five times in the mid-latitude of the northern hemisphere, students are required to master the vertical distribution of near-surface temperature, the height of the noon sun and the length of day and night.