The target studies are tropical cyclone and monsoon activities which are connected to natural disasters in time scales from diurnal variation to seasonal variation, interannual, interdecadal variabilities. These researches are performed by the observation data of field experiments and collecting historical observation data.
Field experiments of meteorological observations are airborne observation penetrating into tropical cyclone eye (photo of Tropical cyclone Trami in 2018), rainfall observations in the Philippines and Micronesia Islands (photo of rainfall observation in Tobi Island of Palau), and upper-air observation in Micronesia, Philippines islands, and research vessel (R/V) on board (photo of Indonesian R/V Baruna Jaya over the Indian Ocean).
Meteorological observation in Asia were conducted from latter half of 19th century, although available meteorological data are limited in recent 60 years. Recently climate variability studies have been developed through the recovery of long-term meteorological observation data from the paper documents, called data rescue activities (photo of ruin of Tokobe weather station in South Seas Bureau and figure of tropical cyclone landfall numbers in the Philippines).
Meteorological and lightning observation are conducting to reduce natural hazards due to tropical cyclone and extreme heavy rainfall (photo of lightning observation in Palau). Data rescue is a powerful tool to understand the climate variability and extreme weather of heavy rainfall and tropical cyclone activities in the Asian monsoon region during the past 200 years.