The Spatially Coherent Projections (SCPs) have certain benefits when used in certain situations. These benefits include:
1. The SCPs are spatially coherent across grid squares
The SCPs allow you to model impacts that fall over a number of neighbouring grid squares. This is not possible when using the UKCP09 probabilistic projections. Because they are spatially coherent, the SCPs allow you to average corresponding values from multiple adjacent grid squares within a single ensemble. Doing so will produce a single projection for a multi-grid square area.
2. A larger number of climate variables are available (including wind speed)
The SCP data provides a larger number of climate variables than is available from UKCP09. For example the SCPs provide projections of wind speed. Furthermore, all variables in the SCPs are consistent with each other. This means that you are able to use all the variables together in vulnerability, impact and adaptation analyses.
3. They consider the wider UKCP09 probabilistic range
The SCPs incorporate more of the uncertainty range than is modelled within the UKCP09 probabilistic projections. However, you should bear in mind that the SCPs do under-sample the range of uncertainties included within the UKCP09 probabilistic projections. Despite this they capture a wider range of climate change uncertainty than is possible using the 11-member RCMs.