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Furuno, Akiko; Chino, Masamichi; Otsuka, Akira*; Watanabe, Tomonari*; Matsumura, Masaya*; Suzuki, Yoshito*
Agricultural and Forest Meteorology, 133(1-4), p.197 - 209, 2005/11
Times Cited Count：24 Percentile：57.44(Agronomy)Transoceanic migration of rice planthoppers was precisely simulated by incorporating several parameters related to the flight behavior with a high performance atmospheric dispersion model. The model consists of an atmospheric dynamic submodel and a particle random-walk submodel for atmospheric dispersion. The model also functions in specifying the release area of the migration of planthoppers. Using this model, we carried out a case study simulating the migration of planthoppers to western Japan in mid-June 1998. In the simulation, 56 areas each with a width of two degrees of latitude and longitude were set as tentative take-off areas. The calculated density of immigrants was compared with each observed density by rank correlation coefficients. Possible migration release areas which showed a high correlation to observations were distributed around 23-27N, including Fujian and Taiwan. An air temperature that allowed the planthoppers to fly continuously and flight duration were critical parameters for the simulation results.
(Horv
th) (Homoptera: Delphacidae) and 
(St
l), using an advanced weather forecast modelOtsuka, Akira*; Dudhia, J.*; Watanabe, Tomonari*; Furuno, Akiko
Agricultural and Forest Entomology, 7(1), p.1 - 9, 2005/02
Times Cited Count：45 Percentile：83.38(Entomology)A new method of backward trajectory analysis for planthopper migration is presented. The method consists of two components: an advanced weather forecast model, MM5, for weather simulation, and a migration model for trajectory calculation. Although the landing process is not considered in the modeling, it is shown that the method is able to precisely simulate the migration and accurately estimate various parameters. This study also shows the importance of high quality weather simulation.
Chino, Masamichi; Nagai, Haruyasu; Furuno, Akiko; Kitabata, Hideyuki; Yamazawa, Hiromi
Proceedings of 10th International Congress of the International Radiation Protection Association (IRPA-10) (CD-ROM), 8 Pages, 2000/00
no abstracts in English
Nagai, Haruyasu; Chino, Masamichi; Yamazawa, Hiromi
Nihon Genshiryoku Gakkai-Shi, 41(7), p.777 - 785, 1999/07
Times Cited Count：13 Percentile：67.11(Nuclear Science & Technology)no abstracts in English
