How is the dragon water absorption in Dalian sea area formed?
In fact, what do netizens say? Dragon absorbs water? Tornado is a rare local, small-scale and sudden strong convective weather. It is a strong small-scale air vortex caused by air convection under strong unstable weather conditions. It is a disastrous weather phenomenon with local scale, which can generally be seen in tropical and temperate regions, including the inland of the United States, western Australia, northeastern Indian Peninsula and so on. According to the shape and environment, tornadoes can be divided into tornadoes and waterspouts.
The conditions of tornado production include wind shear, vertical movement and unstable energy near the surface, and the structure includes a convective system with funnel clouds as the main body and maintaining its existence, usually cumulonimbus clouds brought by thunderstorms, which is a form of concentrated release of unstable energy near the surface in a small area.
The formation of tornado has no clear conclusion in atmospheric microphysics, but it is considered to be related to updraft and vertical wind shear in aerodynamics, which can be roughly divided into four stages. Firstly, the atmospheric convection system brings unstable energy in the atmosphere and causes updraft, and then the updraft generates vertical vorticity under the action of wind speed and wind shear, that is, it begins to rotate in the horizontal direction. After that, the rotating system developed into a convective system under the action of convergent airflow, forming a tornado core in the middle troposphere. Finally, under the action of downdraft at the front of the convection system, the vortex developed by the tornado core extends to the underlying surface, the ground pressure drops sharply, and the ground wind speed rises sharply, thus forming a tornado.