In today's world, Mesohigh is an issue that has become increasingly relevant in the social, political and economic spheres. Its impact has been so significant that it has generated debates, conflicting opinions and mobilizations in different parts of the world. It is an issue that has generated concern and concern among the population, since its implications are far-reaching and can affect all aspects of daily life. In this article, we will delve into Mesohigh to understand its importance, its challenges, and the possible solutions that have been proposed to address this issue effectively.
A mesohigh (sometimes called a "bubble high") is a mesoscale high-pressure area that forms beneath thunderstorms. While not always the case, it is usually associated with a mesoscale convective system. In the early stages of research on the subject, the mesohigh was often referred to as a "thunderstorm high".
A mesohigh forms underneath the downdraft in a squall line and is associated with the cold pool of a thunderstorm. It is largely formed by hydrostatic phenomenon, specifically the evaporation of falling precipitation. As precipitation, primarily rain, falls in the downdraft, it evaporates in the unsaturated air, leading to cooling in the downdraft due to an absorption of latent heat. The cooling of the air leads to an increase in the pressure as the air becomes denser. While not the primary mechanism behind the mesohigh, melting or sensible cooling of hail can also lead to increased pressure in the mesohigh.
An additional source of increased pressure is hydrometeor loading, the weight of precipitation increasing the speed of the downdraft, leading to increased pressure as the air converges at the surface. While hydrometeor loading is not a main contributor of increased pressure to the mesohigh, and it is a non-hydrostatic process, it can increase the pressure as much as 2 mb.