Please read about a potential issue if you acquired daily 2m air temperature files between 8/14/2014 and 11/7/2014.
We have transitioned the data files from netCDF3 to netCDF4-classic format (transition date: Aug 14th).

20th Century Reanalysis V2

This plot shows a timeseries of the monthly mean 850mb zonal wind at the grid point 255E,40N (Boulder, CO).

Options to produce plot are using the PSD monthly time series extraction/plotting web page

  • Select 20th Century Reanalysis
  • Select: Variable: zonal wind
  • Select: Level: 850mb
  • Select: latitude 40 to 40
  • Select longitude: 255 to 255
  • Selecr: Plot as output type