Researcher Information

KUBOTA Hisayuki

Specially Appointed Associate Professor

Weather observation and Meteorological data rescue over the Earth

Department of Earth and Planetary Sciences, Cosmosciences


Tropical cyclone and monsoon studies based on meteorological observation
Data rescue of meteorological documents stored in libraries for climate variability studies

FieldMeteorology, Climatology
KeywordTropical Cyclone, Monsoon, Meteorological observation, Data rescue, Hisotrical weather, Lightning observation

Introduction of Research

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.

Eye of Tropical cyclone Trami at category 5 observed in Sep. 25 2018
Raingauge installed at Tobi Island of Palau (Kubota et al. 2011)
Upper-air observation at R/V Baruma Jaya on board (Kubota et al. 2015)
Ruin of Tokobe weather station constructed in 1939 of in South Seas Bureau; current Tobi Island of Palau; Kubota et al. 2011)
Annual tropical cyclone landfall numbers in the Philippines from 1902 to 2005; Fig. 2a of Kubota and Chan 2009)
Lightning observing instrument installed at Koror Island of Palau

Representative Achievements

Kubota, H., R. Shirooka, J. Matsumoto, E. O. Cayanan, and F. D. Hilario, 2017: Tropical cyclone influence on the long-term variability of Philippine summer monsoon onset, Prog. Earth. Planet. Sci.
Kubota, H., Y. Kosaka, and S.-P. Xie, 2016: A 117-year long index of the Pacific-Japan pattern with application to interdecadal variability, Int. J. Climatol, 36, 1575-1589.
Kubota, H., K. Yoneyama, Hamada, J.-I., P. Wu, A. Sudaryanto, and I. B. Wahyono, 2015: Role of maritime continent convection during the preconditioning stage of the Madden-Julian Oscillation observed in CINDY 2011/DYNAMO, J. Meteor. Soc. Japan, 93A, 101-114.
Kubota, H., R. Shirooka, Hamada J.-I., and F. Syamsudin, 2011: Interannual rainfall variability over the eastern maritime continent, J. Meteor. Soc. Japan, 89A, 11-22.
Kubota, H. and J. C. L. Chan, 2009: Interdecadal variability of tropical cyclone landfall in the Philippines from 1902 to 2005, Geophys. Res. Lett., 36, L12802.

Related industries

Meteorology, Natural Disaster, Historical weather disaster
Academic degreePh. D. of Science
Self Introduction

Enjoying playing clarinet of musical instrument with wind orchestra on weekends.

Academic background1994 Bachelor of Science, Department of Geophysics, Hokkaido University
1996 Master of Science, Department of Earth and Planetary Physics, University of Tokyo
1999 Doctor of Philosophy in Science, Department of Earth and Planetary Physics, University of Tokyo
1999-2016 Scientist, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
2016-2017 Research Scientist, University of Tokyo
2017- present position
Affiliated academic societyThe Meteorological Society of Japan, The association of Japanese Geographers, Japan Geoscience Union
ProjectDevelopment of Extreme Weather Monitoring and Information Sharing System in the Philippines
ACRE Japan
Room addressGeneral Research Building 8 2008-02-08