Cumulative Distribution Function (CDF) data is one way that UKCP09 climate projection data is presented. CDF data show projections of future climate change associated with a given probability level.
Many of the image outputs provided by UKCP09 are produced using cumulative distribution function (CDF) data, including Cumulative Distribution Function plots.
Find out more
- CDF data is explained in more detail in the Reports & guidance section.
- More information about Cumulative Distribution Functions is given in Annex 4.1 of the UKCP09 Climate change projections report.
- An overview of how probabilistic projections are created and presented in UKCP09 is described in Box 3 of the UKCP09 Briefing report. More details are provided in Chapter 3 of the UKCP09 Climate Change Projections report, including an overview of the methodology and a discussion about the interpretation of UKCP09 probabilistic projections (see section 3.3) .
- A discussion of sources of uncertainty in the UKCP09 probabilistic projections is available in Annex 2.4 of the Climate change projections report.