NCEP/NCAR Global Reanalysis Products, 1948-continuing

They are organized as different subgroups in the archive. In addition to analyses, diagnostic terms (for example: radiative heating, convective heating) and accumulative variables (like precipitation rate) are present. The input observations are archived with quality and usage flags in WMO BUFR format.

Most of the project outputs are stored in WMO GRIB format. Other files, such as restart files and zonal statistics, are saved in IEEE format. Some special periods are analyzed more than once to provide data for special research studies.

For example, a special run of 1979 was made excluding most satellite inputs. This run could be used for evaluating the impact of satellite data on the analysis. During the TOGA COARE experiment period, special runs of reanalysis model without experimental data are archived under the TOGA COARE directory.

For details and problems, see NCEP/NCAR Reanalysis TOGA COARE [rda.ucar.edu/datasets/ds090.0/inventories/TOGA-COARE/]. Monthly means are on line at ds090.2 [rda.ucar.edu/datasets/ds090.2/]. The R1 forecasts are in ds090.1 [rda.ucar.edu/datasets/ds090.1/] dataset.