| The following documents contain listings of the 20th Century Reanalysis Version 1 parameters available for download at NCAR. |
| NOAA-CIRES20th Century Reanalsis Version I Documentation | |
| 20th_cent_reanl_analysis_fields.pdf | 20th Century Reanalsys Version I, 6 hourly analysis fields (2.0 x 2.0 degree lat/lon) available at NCAR. |
| 20th_cent_reanl_first_guess_forecast_fields.pdf | 20th Century Reanalsys Version I, 3 and 6 hourly first guess forecast fields (Gaussian T-62) available at NCAR. |
| 20thcentreanalonlineparams.xls | Excel Spreadsheet document that includes a listing of both analysis and first guess forecast fields. |
| ISPD_quick_assimilated_ascii_format.pdf | Format description of the prepbufrobs_assim text files. |