The picture below is a map of the surface weather situation in certain areas of my country for a certain month. Read the picture to answer the following questions. (***10 points) (1) This picture is most likely to be from _______ month (

(1) January (2 points)? Anticyclone? (2 points)

(2) Warm front? (2 points)? Overcast Weather, windy, rainy, cooling (2 points)

(3) Northerly wind (northwest wind) (2 points)?

Examination questions Analysis:

For question (1), it can be seen from the picture that the Eurasian continent is controlled by high pressure (anticyclone), so it is a surface weather situation map in January.

For question (2), it can be seen from the figure: B is the low pressure center, and the low pressure in the northern hemisphere rotates counterclockwise. According to the direction of air flow movement, it can be judged that a warm front will pass through E in the near future, and the passage of warm fronts is often accompanied by Cloudy, windy, rainy, cooling and other weather phenomena.

Question (3): At this time, the wind direction in M ​​is northerly (northwesterly). As shown in the figure below (Note: The black arrow is the horizontal pressure gradient force, and the red solid arrow is the wind direction).

Comments: This question uses a local area to examine relevant knowledge points about the weather system. Common mistakes in this question: (1) Place A is controlled by high pressure, but in terms of airflow conditions, you have to answer anticyclone, and you will not get points if you answer high pressure. (2) When judging the wind direction, the horizontal pressure gradient force and the geostrophic deflection force should be considered, and the wind direction in the Northern Hemisphere should be noted to be deflected to the right.