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 Station
to
Use these controls to limit the stations used with other functions.
  • To reset the filter, set a new baseline period - this clears the filter and computes a new baseline
  • Use the additional range fields to require a few years near one date and a few near another
The checkboxes are used to define the default filter used when is clicked.

    Default FiltersFromToWith at Least this many
    measurements within the range
    Click button to apply
    Set baseline
If any of the 3 checkboxes - Align stations on common baseline, Filter stations, Hide filtered sites - is selected, then Hi/Lo uses only the non-filtered stations.

For instance, of the 5,255 available GHCN adjusted land sites,

  • Of those, only 4567 have 15 years of data between 1961 and 1990
  • Of those, only 1000 have  8 years of data between 1900 and 1910
  • Of those, only   520 have  8 years of data between 2000 and 2010


To display individual sites in the lower plot, select *station* and click on the site. To display purple (restricted) sites in the lower plot, turn off *Align stations on common baseline*.