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.

20th Century Reanalysis V2

This plot shows the anomalous cold for the US Jan 1912.

Options to produce plot are using the Daily Composites 20th Century V2 Plotting page

  • air temperature
  • 1000mb
  • January 1 1912 (0,6,12,18z)
  • Means
  • Map projection: custom 40-55N; 250-270E.