Search site

Cumulative Distribution Functions (CDFs)

Cumulative Distribution Functions or CDFs are line graphs that show the probability levels associated with different amounts of climate change. You can produce CDFs using the UKCP09 User Interface .

You can produce CDFs for climate change projections over land and for the marine and coastal projections. The User Interface can produce CDFs to show projected climate change or projected future climate (over land areas) for:

  • One climate variable (such as temperature or precipitation)
  • One location
  • One time period
  • One temporal average
  • One, two or three emissions scenarios

You are able to export CDFs from the User Interface as images in various file formats (.pdf, .ps, .png and .jpg).

More information on CDFs

More information about how to use the maps can be found on the Cumulative Distribution Functions (CDFs) in detail page. Information on how to interpret the maps can be found on the Interpreting Cumulative Distribution Functions (CDFs) page.

Need more help?

For questions and queries about UKCP09 please see our Help section.