We study regional and global climate systems.

Specific topics are:

  • Atmospheric hydrological cycle on regional and global scales
  • Asian monsoon
  • Cloud and precipitation over the Asian monsoon region
  • Role of land surface conditions on rainfall characteristics (Land-atmospheric interaction)
  • Impact of land-use change on regional climate

  • Data analysis (atmospheric circulation (JRA55), satellite derived rainfall and cloud datasets(TRMM/GPM/Himawari), aerosol)
  • Climate modeling(regional: WRF, global CMIP outputs)
  • Observations

Key words (too many?)

Climate system, Hydrological cycle in the atmospheric branch, cloud-precipitation climatology, Asian monsoon, snowfall on the Japan Sea side of Japan, Land-atmosphere interaction (soil-precipitation feedback), Urban climatology, Aerosol-cloud inetraction, water vapor variability, global warming, climate change, regional climate model, global climate model, satellite observation (TRMM/GPM), ocean-atmosphere interaction

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Past News

Rakesh T. Konduru's first paper will be published:
Rakesh T. Konduru and Hiroshi G. Takahashi, 2020: Effects of convection representation and model resolution on diurnal precipitation cycle over the Indian monsoon region - Towards a convection-permitting regional climate simulation. Journal of Geophysical Research - Atmospheres-, accepted.

Moeka Yamaji's first paper in DC will be published:
Yamaji, M., H. G. Takahashi, T. Kubota, R. Oki, A. Hamada, and Y. N. Takayabu, 2020: 4-year climatology of global drop size distribution and its seasonal variability observed by spaceborne Dual-frequency Precipitation Radar. J. Meteor. Soc. Japan, 98, Special Edition on Global Precipitation Measurement (GPM): 5th Anniversary,

Early online release

New paper will be published.
Sugimoto, S., H. G. Takahashi, and H. Sekiyama, 2019: Modification of Near-Surface Temperature Over East Asia Associated With Local-Scale Paddy Irrigation. J. Geophys. Res. Atmos., 124, 2665-2676, doi:10.1029/2018JD029434.[Web Page]

New paper will be published.
Takahashi, H. G., and J. Polcher, 2019: Weakening of rainfall intensity on wet soils over the wet Asian monsoon region using a high-resolution regional climate model. Progress in Earth and Planetary Science, 6, 26, doi:10.1186/s40645-019-0272-3.[Web Page]

New paper will be published.
Kamizawa, N., and H. G. Takahashi, 2018: Projected Trends in Interannual Variation in Summer Seasonal Precipitation and Its Extremes over the Tropical Asian Monsoon Regions in CMIP5. J. Climate, 31, 8421-8439, doi:10.1175/JCLI-D-17-0685.1. [Web Page]

New paper will be published.
Takahashi, H.G., Watanabe, S., Nakata, M., and Takemura, T. 2018: Responseof the atmospheric hydrological cycle over the tropical. Progress in Earth and Planetary Science (PEPS), 5, 44, https://doi.org/10.1186/s40645-018-0197-2. [Web Page]



Assistant Professor Hiroshi TAKAHASHI

Department of Geography,
Tokyo Metropolitan University
1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
E-mail: hiroshi3~at~tmu.ac.jp