Analysis of meteorological observation data for the atmospheric diffusion calculation; FY1995-2004

Nakano, Masanao ; Onuma, Toshimitsu*; Takeyasu, Masanori ; Takeishi, Minoru 

The meteorological observation has been performed since 1960's. After 1974, this observation came to measure on the top of the meteorological observation tower, which is 100m high above the sea level, for the environmental assessment of radioactive wastes with the atmospheric discharge from the Tokai Reprocessing Plant. The meteorological observation data has been applied for the calculation of the atmospheric diffusion of radioactive wastes since the hot examination was started at 1977. The previous report, named "Analysis of Meteorological Observation Data for the Atmosphere Diffusion Calculation" was published in 1996, and mentioned to the data from 1977 to 1995. This report presents a statistic result of meteorological observation based on the decadal data from fiscal year 1995 to 2004. The characteristics of the atmosperic diffusion around the Tokai Reprocessing Plant are also discussed in this report.