20th Century Reanalysis V2 Monthly/Seasonal Composites: Google Earth

We have transitioned the data files from netCDF3 to netCDF4. As a result, the files are compressed instead of being packed with a scale and offset. As with any netCDF4 file, the user interface will perform the uncompression. We expect the files to be read faster, depending on the application you are using. Please let us know if you run into any issues.


Plot seasonal composites (averages) of the mean or anomalies (mean - total mean) of variables from the 20th Century Reanalysis reanalysis. Output is a KML/KMZ file and a link to the Google Earth Browser Interface. 20th century reanalysis data is available from Jan 1871 to Dec 2012.


? 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
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This is a Research and Development Application