Abstract
Inhabitants in Japan suffer f rom strong winds and heavy rainfalls in the typhoon almost every year. Investigations on typhoons and depressions have been sedulously made by the investigators in the Central Meteorological Observatory and in the geophysical institutes of universities.
In recent years, the development in the observational techniques with Radiosonde and Rawin has made it possible to obtain reliable observational materials in an area of typhoon and even close to or even in the eye of a typhoon. In the typhoon season of 1951, the Central Meteorological Observatory of Japan started the Typhoon Research Project which included the aerological and extraordinary surface observations.
In this synthetic paper the author intends to report on the recent researches on typhoons in Japan.
