How does the temperature in China change with time?

Generally speaking, the highest temperature in a day appears at 2 pm, and the lowest temperature appears around sunrise. In a year, the highest temperature in the northern hemisphere and the northern hemisphere appears in July, and the highest temperature in the ocean appears in August. The lowest land temperature appeared in 65438+ 10, and the lowest ocean temperature appeared in February.

Reason: 1. The heat of air near the ground comes from the thermal radiation of the ground. 12 From sunrise to noon, when the solar altitude angle is maximum, the heat absorbed by the ground is greater than the radiation heat. By 2 pm, the radiation reached the maximum and the temperature was the highest. Before and after sunrise, the ground heat is completely lost, so the lowest temperature appears before and after sunrise.

2. The amount of light and heat obtained at the same latitude is the same. The land and the ocean are warming up at the same time, and the land is warming up quickly and the ocean is warming up slowly. So the highest temperature on land appears in July, and the ocean appears in August. When the temperature drops, the speed of land cooling is fast and the speed of ocean cooling is slow. So the lowest temperature of the ocean is one month later than that of the land, which appears in February.