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Documentation about the NCEP/NCAR Reanalysis data at PSD.
To reference the NCEP/NCAR data, please use the following text:
Kalnay, E. and Coauthors, 1996: The NCEP/NCAR Reanalysis 40-year Project. Bull. Amer. Meteor. Soc., 77, 437-471.
Current PSD (Web/Data Status). PSD has undergone major URL restructuring so that all URLs start with http://www.esrl.noaa.gov/psd/ (More Info).
 

Create a monthly/seasonal mean time series from the NCEP Reanalysis Dataset

Create a timeseries of monthly/seasonal mean values (Directions). Output is organized by year for the rows and by month (January to December) across columns for monthy values. Simply save the browser page containing the timeseries output in order to use it in the correlations with NCEP Reanalysis monthly means web page. The program will calculate closest latitudes and longitudes to those input. To use one grid, type in same begin/end latitude and longitude values.

Variable? Analysis level? (choose surface for non-level variables)
Latitude? (N to S, e.g, 4 to -4) Longitude? (W to E, e.g. 180 to 200 or -10 to 20)
 to   to 
Monthly   Seasonal average --
First month of season: second month:
Area weight grids?   No    Yes

Output format:  Raw data values   Plot data