Traditional Culture Encyclopedia - Weather forecast - What effect does the geographical high and low pressure have on the climate and when does it happen?

What effect does the geographical high and low pressure have on the climate and when does it happen?

Because the low-pressure air is upward, and the upward reason is because its temperature is high, the high-pressure air is downward, and the cold air is heavier. As for why, just like boiling water, water is steaming. That is, when the temperature is low, the airflow sinks and produces high pressure; When the temperature is high, the airflow rises, resulting in low pressure. It is not after high pressure is formed that the temperature drops.

When did it come into being? 1. The banded pressure zone in the northern hemisphere is divided into several closed high and low pressure systems, which change with the seasons.

Seasonal land and sea

Winter Mongolian high, North American high, Aleutian low, Iceland low.

Summer Indian low, North American low, Hawaiian high, azores high.

Atmospheric activity center: a closed high and low pressure center that appears on land and sea in winter and summer.

Permanent atmospheric activity center: perennial (four high and low pressure systems at sea)

Semi-permanent atmospheric activity center: seasonal (four high and low pressure systems on land)

Southern hemisphere 40? In the south of S, the isobar is basically distributed in the latitudinal direction, regardless of winter and summer, while 40? To the north of S, the high-pressure belt surrounds the whole world in winter, and the land is a low-pressure system and the ocean is a high-pressure system in summer.

From high pressure to low pressure.