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In order to help ensure that this web analysis page remains available, we would greatly appreciate feedback on its use, particularily in the clasroom, for presentations or for research. Mail to Cathy Smith at (cathy.smith@noaa.gov).

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Background Information
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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). OPeNDAP Data access is now open without IP restrictions.
 
PSD's 20th Century Reanalysis dataset has ben restored and is currently publicly available.

20th Century Reanalysis Monthly Composites

Plot seasonal composites (averages) of the mean or anomalies (mean - total mean) of variables from the 20th Century Reanalysis reanalysis and other datasets. 20th century reanalysis data is available from Jan 1908 to Dec 1958.

? Which variable? Level?
? Beginning month of season: Ending month:
? Enter years for composites (from 1 to 16): e.g. 1972. For seasons that span a year (e.g. DJF), please enter year of the LAST month.

To subtract one set of years from another, use a minus sign (-) before the years that are to be subtracted.


? OR Enter range of years: to (optional minus to )
? OR List of years: Enter filename:
? OR Years from values in Time Series:

If CUSTOM Time Series:

? Value to composite on:

Type of comparison:

? Lag: Plot composites for months before or after dates chosen
? Color? Shading:
? Plot type? Mean Anomaly Long Term Mean
? Scale plot size (%)   Plot contour labels? No Yes
? Reverse colorbar? No Yes
? Override default contour interval? Interval: Range: low high
? Map projection

If CUSTOM projection:
Lowest lat: (-90 to 90) Highest lat:
Western-most longitude (0 to 360): Eastern-most longitude:
CUSTOM projection:

go to error submittal form (Report Bugs)