जलवायु पुनर्विश्लेषण (Climate Reanalyses Meaning in Hindi)
(Definition) Weather forecasting centres analyse the present atmospheric configuration every day, using models to interpolate observations in order to construct physically consistent estimates of the atmospheric state. Because of changes in the structures of the models and in the procedures used, those analyses are not necessary consistent over long periods. In order to reduce the long-term biases, reanalyses are performed, using the same model and the same procedure over the whole period. However, biases are still present as the amount of available data change over time. The most widely used reanalyses are those computed by the National Center for Environmental Prediction and the National Center for Atmospheric Research (NCEP/NCAR) (http://www.cdc.noaa.gov/cdc/reanalysis/reanalysis.shtml) and of the European Centre for Medium-Range Weather Forecasts (ECMWF) (ERA-40) (http://www.ecmwf.int/research/era/).
