China Naming Network - Eight-character query< - Why is the Gulf of Mexico prone to hurricanes?

Why is the Gulf of Mexico prone to hurricanes?

A hurricane must meet the following conditions: 1. A vast ocean surface; 2. An unstable atmosphere with hot top and cold bottom; 3. Rich water vapor; 4. There is geostrophic bias in this area. The Gulf of Mexico has a relatively broad ocean surface, located in the subtropical zone, where the temperature is relatively high, the evaporation is large, the water vapor is rich, and there is geostrophic bias, which is prone to unstable atmospheric knots with lower heat and lower cold! So more!

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continue to ask: what is the geostrophic deflection? Why does this force exist in the Gulf of Mexico and elsewhere? Do you have anything similar? Report

Supplementary answer: The force acting on the moving air due to the rotation of the earth is called geostrophic deviatoric force, which is referred to as deviatoric force for short. It only occurs when the object moves relative to the ground (it doesn't actually exist), and it can only change the direction of the object's movement (horizontal movement), but can't change the speed of the object's movement. The geostrophic force can be divided into two components: horizontal geostrophic force and vertical geostrophic force. Because the ground plane on the equator rotates around the axis parallel to the plane, the geostrophic force generated by the horizontal movement of air relative to the ground plane lies in the plane perpendicular to the ground plane, so there is only vertical geostrophic force, but no horizontal geostrophic force. Because the polar ground plane rotates around the axis perpendicular to the plane, the geostrophic force generated by the horizontal movement of air relative to the ground plane is located on the same horizontal plane perpendicular to the rotation axis, so there is only horizontal geostrophic force, but no vertical geostrophic force. At latitudes between the equator and the polar regions, the ground plane rotates around an axis parallel to the ground axis, and the axis has a certain angle with the horizontal plane. There are both components of rotation parallel to the ground plane and vertical to the ground plane, so there are both vertical and horizontal geostrophic deviatorics.