Japanese 25-year ReAnalysis (JRA-25) and JMA Climate Data Assimilation System (JCDAS)
Last updated: December 2008
The Japan Meteorological Agency (JMA) and the Central Research Institute of Electric
Power Industry (CRIEPI) conducted a 26-year reanalysis project referred to as the
Japanese 25-year Reanalysis (JRA-25). JMA and CRIEPI offer users JRA-25 products.
JMA also operates a real-time climatic assimilation system known as the JMA Climate
Data Assimilation System (JCDAS), for diagnosis of the present state of climate. JMA
offers users JCDAS products under the same conditions as those for JRA-25 products.
Climate Prediction Division, Global Environment and Marine Department, Japan Meteorological Agency