The Japan Meteorological Agency (JMA) and the Central Research Institute of Electric Power Industry (CRIEPI) jointly conducted the Japanese 25-year Reanalysis (JRA-25) project for five years from 2001. Quality-controlled observational data from past decades and the latest numerical assimilation and prediction technology were used to produce a long-term record of the state of the atmosphere. The reanalysis covers the 26-year period from 1979 to 2004, and provides consistent and high-quality data. The JRA-25 product is widely used for research on meteorology and climatology, as well as for operational climate monitoring and seasonal forecasting.
Maps of annual, seasonal and monthly averaged climate fields of various meteorological variables from the JRA-25 products have been archived as the JRA-25 Atlas. We hope that the Atlas will be widely used for research and education.
Language(s): English, Japanese
Format: Digital (Free), Hard copy (ill., charts, maps)