Read the following schematic diagram of the formation of a weather system in the northern hemisphere and answer: (7 points) (1) The dotted arrow in the diagram indicates that the solid arrow indicates

Read the following schematic diagram of the formation of a weather system in the northern hemisphere and answer: (7 points) (1) The dotted arrow in the diagram indicates that the solid arrow indicates &; n

This topic examines the common weather system and the comprehensive analysis ability of reading pictures. (1) The dotted arrow in the figure is perpendicular to the isobar, and points from high pressure to low pressure, so it is judged as horizontal pressure gradient force. On the basis of the horizontal pressure gradient force, the solid arrow leans to the right in the northern hemisphere and obliquely crosses the isobar, so it is judged as the direction of horizontal air flow. (2) According to the air pressure distribution, the air pressure in the center of Figure A is higher than that in the surrounding areas, so it is judged as a high pressure center, and the air pressure in the center of Figure B is lower than that in the surrounding areas, so it is judged as a low pressure center. From the point of airflow movement, A shows that the airflow flows from the center to the periphery, so it is judged as an anticyclone; The airflow in Figure B flows from the periphery to the center, so it is judged as a cyclone. (3) In the control area shown in Figure A, the airflow sinks, so the weather is fine.