What is called horizontal barometric pressure gradient force?

The uneven heating of the surface causes a difference in air pressure on the same horizontal plane, and we call the difference in air pressure between unit distances a barometric pressure gradient, and as long as there is a pressure gradient in the horizontal plane, there is a pressure that causes the atmosphere to flow from a high pressure area to a low atmosphere.

The force of the area, this force is called the pressure gradient force Under the action of this force, the atmosphere moves from the area of high pressure to the area of low pressure, which forms the wind

It can be seen that the horizontal pressure gradient force is the main reason for the formation of wind

Barometric gradient force.

pressure

gradient

force in the atmosphere due to the uneven distribution of air pressure in space, and the force acting on the gas mass. For a gas block per unit mass, the direction of the pressure gradient force is perpendicular to the isobaric surface, and it is directed from high pressure to low pressure. Its magnitude is proportional to the value of the barometric pressure gradient and the density of the air.

inversely proportional. The pressure gradient force in the horizontal direction is perpendicular to the isobar in the horizontal plane and is directed from high pressure to low pressure. On surface weather maps, there are often centers of high and low pressure.

Usually in the high pressure zone, the horizontal pressure gradient force experienced by the gas block is perpendicular to the isobaric line and points outward from the center of high pressure; In the low pressure region, the horizontal pressure gradient force experienced by the gas block is perpendicular to the isobar line and points towards the center of the low pressure. Since the air pressure decreases with altitude in the atmosphere, usually the pressure gradient force in the straight direction of lead is opposite to the direction of gravity.

The force that arises because of the difference in air pressure is called the pressure gradient force.

The air pressure is directly proportional to the density of the air, the higher the density, the higher the air pressure; As long as there is a difference between high and low air pressure, there will be a force to lower the air pressure at the high air pressure.

like water flowing from high to low. This force due to the difference in air pressure is called the pressure gradient force, so air in high pressure should flow outward from the center, while low pressure should flow from outside to inward. In reality, however, airflow does not flow directly from the center outward or toward the center, in the Northern Hemisphere.

The air flow at high pressure is swirled outward in a clockwise direction; The low-pressure airflow is swirled inward in a counterclockwise direction. In the Southern Hemisphere, the air flow of high pressure spirals out in a counterclockwise direction, while the low pressure spirals in a clockwise direction.

1.Method for judging the direction of the horizontal pressure gradient force: palm up, northern hemisphere.

With the right hand, the southern hemisphere with the left hand, and the other four fingers together point together to the direction of movement when the pressure is flowing or the wind is not deflected (i.e., from high pressure to low pressure), and the thumb indicates the direction after the deflation.

2.Generally, the northern hemisphere deviates to the right and the southern hemisphere deviates to the left.

3.The positive gradient force of pneumatic slag is characterized by being perpendicular to the isobar, and its direction is directed from high pressure to low pressure.

4.The air pressure gradient is the difference in air pressure between unit distances, once there is a difference between high and low air pressure, there will be a force to make the air at the high air pressure lower than the air pressure.

The direction of the flow. 5.Just as water flows from high to low, the action of this force forms the wind, and the magnitude of the wind speed depends on the magnitude of the horizontal pressure gradient force.

The force that arises because of the difference in air pressure is called the pressure gradient force.

Air pressure and air density.

proportionally, the higher the density, the higher the air pressure; As long as there is a difference between high and low air pressure, there will be a force to lower the air pressure at the high air pressure.

like water flowing from high to low. This force due to the difference in air pressure is called the pressure gradient force, so the air in the high pressure should flow outward from the center, while the air in the low pressure should flow out.

It flows from the outside to the inside. In the Northern Hemisphere, however, the air flow of high pressure does not flow outward or inward from the center, but in the Northern Hemisphere, the air flow of high pressure spirals outward in a clockwise direction. The low-pressure airflow is swirled inward in a counterclockwise direction. In the Southern Hemisphere, the air flow of the high pressure rotates out in a counterclockwise direction, while the low pressure rotates in a clockwise direction into the landslide.

The magnitude of the horizontal pressure gradient force is related to the wind. The horizontal pressure gradient refers to the difference in air pressure between unit distances, and once there is a difference between high and low air pressure, there will be a force to make the air at the high air pressure flow in the direction of the low air pressure.

Since the earth is an ellipsoidal sphere, the heat absorbed by various latitudes is unevenly distributed, so there is a heat difference between high and low latitudes, causing vertical movement of rising or sinking, so that the derivative serves the difference in the chaotic fiber pressure in the same horizontal plane, and the air flow flows from high pressure to low pressure. The horizontal pressure gradient force arises from this, which is the root cause of atmospheric motion.