Applied Meteorology

Wind Energy Prediction

Now describing.

Solar Energy Prediction

Now describing.


  Recently in Japan, temperatures in urban area have been rising due to
heat island effects and global warming.

  Number of heat stroke patients is increasing year by year, especially during summer.
From this reason, health hazard has become more serious due to
temperature increase.It is considered that health hazard is significant in urban areas,
particularly in the three major urban cities in Japan,due to marked temperature increase.
However, the evaluation of future health impact with heat island effects has not been studied in detail.

We have been examining the future urban climate in summer in three major metropolitan areas
by downscale experiment using regional climate model WRF.
Using this result, we are assessing the health impact from temperature rise.

Number of days with daily maximum WBGT (wet-bulb global temperature) exceeding 31 degree Celsius ("outdoor activity prohibited" warning level according to the Japanese Sports Association).

Left panel is current observation, and right panel is future prediction using dynamical downscaling, respectively.

Reference: Suzuki-Parker et al. (2013, J. Bio. Met. Japan)

Team Members
  • Shiori ABE(2010-), Natsumi Iijima(2011)
  • Suzuki-Parker, A., H. Kusaka, 2016: Future projections of labor hours based on WBGT for Tokyo and Osaka, Japan, using multi-period ensemble dynamical downscale simulations. Int. J. Biometol.60(2), 307–310, 2016/02/01(Acknowledgement :SOUSEI, RECCA) .
  • Suzuki-Parker, A., H. Kusaka, 2015: Assessment of the impact of metropolitan-scale urban planning scenarios on the moist thermal environment in a warmed climate: A study of the Tokyo metropolitan area using regional climate modeling. Advances in Meteorology, doi:/10.1155/2015/693754, 2015/05/06(Acknowledgement :SOUSEI、ICSP in CCS) .
  • Suzuki-Parker, A., H. Kusaka, 2015: Future projection of thermal environment in Japan using WBGT. Japanese Journal of Biometeorology, 52(1), 59-72. DOI:/10.11227/seikisho.52.59, 2015/04/14(Acknowledgement :SOUSEI) .
  • Kayaba, M., T. Ihara, H. Kusaka, S. Iizuka, K. Miyamoto, and Y. Honda, 2014: Association between sleep and residential environments in the summertime in Japan. Sleep medicine, 15, 556-564. 2014/02/19(Acknowledgement: S-8, RECCA) .
  • Okada, M., Okada, M., and Kusaka, H., 2013: Parameter adjustment and application to an extension area of Okada and Kusaka’s formula for the black globe temperature, J. Heat Island Inst. Inter., 8, 13-21. 2013/11/14(Acknowledgement: SOUSEI, RECCA) .
  • Kusaka, H ., N. Iijima, T. Ihara, M. Hara, Y. Takane, and S. Iizuka, 2013: Future projection of heat stroke and sleep disturbance for 2070's August in Tokyo,Nagoya,and Osaka. Journal of Environmental Engineering, 693, 873-881. 2013/11/01 .
  • Takane, Y., H. Kusaka, M. Takagi, M. Okada, S. Abe, T. Nagai, Y. Fuji, and S. Iizuka, 2013: Observational Study and Numerical Prediction Experiments on Wet-Bulb Globe Temperature in Tajimi,Gifu Prefecture:Consideration of Uncertainty with a Physics Parameterization Scheme and Horizontal Resolution of the Weather Research and Forecasting Model. Geophysical Review of Japan., 86(1), 14-37. 2013/01/01 (Acknowledgement: RECCA) .
  • Kusaka, H., Hara, M., Takane, Y., 2012: Urban climate projection by the WRF model at 3-km horizontal grid increment: Dynamical downscaling and predicting heat stress in the 2070’s August for Tokyo, Osaka, and Nagoya metropolies. J. Meteor. Soc. Japan., 90B, 47-64. 2012/03/27(Acknowledgement: S5) .
  • Ihara, T., Kusaka, H., Hara, M., Matsuhashi, R., Yoshida, Y., 2011: Estimation of mild health disorder caused by urban air temperature ingrease with midpoint-type impact assessment methodology. J. Environ. Eng., AIJ, 76(662), 459-467. 2011/04/01(Acknowledgement: S5) .
Press Release
  • Nikkei Inc. (5.10,2012)