What is a Scatterplot?
In beginning any impact assessment, choosing which climate scenario to use is an important question that should be considered early on in the process. The Scatterplot is primarily used for the selection of useful scenarios. There are several considerations ranging from type of socio-economic futures that are of interest, as represented by the various IS92A and four major SRES scenarios, the availability of particular variables, model validity and model representativeness, among others. Scatterplots of various model scenarios will assist in identifying the range of values that are projected. Using the Scatterplot tool, two variables can be plotted against each other for different locations in the country for a particular time slice from each scenario on the website. For example, if precipitation and temperature are plotted against each other for the 2020s, it is very easy to identify those scenarios that are both warmer and wetter and warmer and drier for the region. It is also possible
