Traditional Culture Encyclopedia - Weather inquiry - Analyze the statistical chart of weather change data in Nanchang City, Jiangxi Province in the days around May 5, and complete the following questions. Question 1: This weather change process is the m
Analyze the statistical chart of weather change data in Nanchang City, Jiangxi Province in the days around May 5, and complete the following questions. Question 1: This weather change process is the m
Question 1:B
Question 2:B
Question 3:D?
Question 4:B
Test analysis:
Question 1: According to the diagram, when the weather system transits, the temperature drops and the air pressure rises. Judging from the obvious rainfall process, the weather system should indicate a cold front. So b is correct.
Question 2: According to the picture, the cold air mass in Figure B moves to the warm air mass actively, and the warm air mass is forced to rise, which is the cold front. So b is correct.
Question 3: According to the picture, A is a warm front and B is a cold front; When the cold front crosses the border, the warm air mass is lifted by the cold air mass, resulting in rainy and windy weather, and the rain area is behind the front; After the cold front crossed the border, the cold air mass replaced the original warm air mass, which was only controlled by the cold air mass, so the temperature dropped, the air pressure increased and the weather turned fine. When the warm front crosses the border, the warm air mass cools and condenses in the process of slowly climbing, resulting in continuous rainfall, and the rain area is in front of the front; After the warm front crossed the border, the warm air mass occupied the position of the original cold air mass, the temperature rose, the air pressure dropped, and the weather turned fine. So d is correct.
Question 4: Cold front is the main weather system affecting China. Meiyu affecting the middle and lower reaches of the Yangtze River in China is formed by quasi-static fronts. The summer rainstorm in Northeast China and North China is formed by the influence of cold front. Typhoons along the southeast coast are formed by tropical cyclones; Summer drought in the middle and lower reaches of the Yangtze River is controlled by subtropical high.
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