What is horizontal pressure gradient force

What is horizontal pressure gradient force

The uneven heating of the earth's surface results in the pressure difference on the same horizontal plane. We call the pressure difference per unit distance as the pressure gradient. As long as there is a pressure gradient on the horizontal plane, there is a force that causes the atmosphere to flow from the high pressure area to the low pressure area. This force is called the horizontal pressure gradient force

Horizontal pressure gradient force

As long as there is a pressure gradient on the horizontal surface, there will be a force to promote the atmosphere to flow from high pressure area to low pressure area. This force is called pressure gradient force

Relationship between wind direction and horizontal pressure gradient force
The horizontal pressure gradient force refers to the horizontal movement from high pressure to low pressure, and the direction of the typhoon center also refers to the horizontal pressure gradient force. The wind direction in the northern hemisphere moves to the right
The problem is that the wind directions of the three maps are southwest, South, Southeast, and the typhoon center? Southeast East seems to be wrong. The answer is that the direction of the horizontal pressure gradient force is 45 ° to 60 ° to the left. Isn't that a contradiction
Maybe I'm not clear
What I want to ask is just a question. If the wind direction is southwest, which direction should the horizontal pressure gradient force be south? What about the southeast? Does the horizontal pressure gradient force shift to the left or right in the wind direction?
The relationship between horizontal pressure gradient force and wind direction.

Your problem is that there is no map
The relationship between horizontal pressure gradient force and wind direction is: wind direction is the direction when horizontal pressure gradient force and geostrophic deflection force reach equilibrium. Horizontal pressure gradient force makes wind direction to the left, geostrophic deflection force makes wind direction to the right
The direction of the horizontal pressure gradient force is the angle with the wind direction, which is 90 degrees to the left of the wind direction. That is, if the wind direction is southwest, the direction of the horizontal pressure gradient force is 90 degrees to the left from southwest to Southeast
If the horizontal pressure gradient force near the typhoon center is larger, the angle between the wind direction and the horizontal pressure gradient force will be smaller, that is, less than 90 degrees
Here is a special note: the wind direction we are talking about is horizontal, and the pressure gradient force and geostrophic deflection force are also considered from the horizontal direction. In fact, the air flow is multi-dimensional and cannot be only horizontal