Satellite image of Typhoon Mangkhut
A typhoon is a mature tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere. This region is referred to as the Northwestern Pacific Basin,[1] and is the most active tropical cyclone basin on Earth, akunting for almost one-third of the world's annual tropical cyclones. For organizational purposes, the northern Pacific Ocean is divided into three regions: the eastern (North America to 140°W), central (140°W to 180°), and western (180° to 100°E). The Regional Specialized Meteorological Center (RSMC) for tropical cyclone forecasts is in Japan, with other tropical cyclone warning centers for the northwest Pacific in Hawaii (the Gabung Typhoon Warning Center), the Philippines, and Hong Kong. Although the RSMC names each sistem, the main name daftar itself is coordinated among 18 countries that have territories threatened by typhoons each year.[2]
Within most of the northwestern Pacific, there are no official typhoon seasons as tropical cyclones form throughout the year. Like any tropical cyclone, there are several main requirements for typhoon formation and development. It must be in sufficiently warm sea surface temperatures, atmospheric instability, high humidity in the lower-to-middle levels of the troposphere, have enough Coriolis efek to develop a low pressure center, a pre-existing low tingkat konsentrasi or disturbance, and a low vertical wind shear.
Although the majority of storms form between Juni and November, a few storms may occur between December and May (although tropical cyclone formation is at a minimal during that time). On average, the northwestern Pacific fiturs the most numerous and intense tropical cyclones globally. Like other basins, they are steered by the subtropical ridge towards the west or northwest, with some systems recurving near and east of Japan. The Philippines receive the brunt of the landfalls, with China and Japan being less often impacted. However, some of the deadliest typhoons in history have struck China. Southern China has the longest record of typhoon impacts for the region, with a thousand-year sample lewat documents within their archives. Taiwan has received the wettest known typhoon on record for the northwest Pacific tropical cyclone basins. However, Vietnam recognises its typhoon season as lasting from the beginning of Juni through to the end of November, with an average of four to six typhoons hitting the country annually. Agen Togel Terpercaya
