At the beginning of 20 12, the western Europe encountered extremely cold weather, and the polar cold air invaded the western Europe along the east coast of the Atlantic Ocean. Meteorologists believe t

At the beginning of 20 12, the western Europe encountered extremely cold weather, and the polar cold air invaded the western Europe along the east coast of the Atlantic Ocean. Meteorologists believe that extremely cold weather. (1) The temperature in the Arctic is low, and the airflow sinks, resulting in polar high pressure. Combined with the isobar, we can draw and analyze it according to the method that the wind direction intersects the isobar, from high pressure to low pressure, and the geostrophic force in the northern hemisphere shifts to the right. It can be judged that Figure C reflects the atmospheric movement in the Arctic.

(2) ① The isotherm protrudes northward, indicating that the temperature in this area is higher than other areas at the same latitude, which is mainly affected by the North Atlantic warm current. ② Isotherms are generally parallel to the coastline and are mainly influenced by warm and humid westerly belts. The farther away from the ocean, the stronger the continental nature and the lower the temperature in winter. After global warming, the 0℃ isotherm of 65438+ 10 will move northward.

(3) The northern mountains are distributed in the north-south direction, and the Central Plains is vast, which is conducive to the southward movement of polar cold air; There are many east-west mountains in the south, which block the polar cold air from going further south.

(4) The extremely cold weather caused the winter crops in Europe to suffer from freezing injury, which reduced the forage yield; Communication and power supply interruption; Traffic is blocked; Buildings were destroyed; People face food shortages, even frostbite and freezing to death.

So the answer is:

(1) high c

(2) Influenced by the North Atlantic Warm Current, westerly winds prevail in the north.

(3) The northern mountainous area is distributed in the north-south direction, and the central plain is vast, which is beneficial to the southward movement of polar cold air; There are many east-west mountains in the south, which block the polar cold air from going further south.

(4) The extremely cold weather caused the winter crops in Europe to suffer from freezing injury, which reduced the forage yield; Communication and power supply interruption; Traffic is blocked; Buildings were destroyed; People face food shortages, even frostbite and freezing to death.