Taylor Diagram Example 8

How to create a taylor diagram with overlaid markers.

An eighth example of how to create a Taylor diagram given one set of reference observations and multiple model predictions for the quantity.

This example is a variation on the seventh example (taylor7) where now a fourth data point having a negative correlation is overlaid on an existing Taylor diagram that already has 3 data points with positive correlations. It is chosen to have data points with positive correlations appear in red while data points with negative correlations are displayed in blue.

All functions in the Skill Metrics Toolbox are designed to only work with one-dimensional arrays, e.g. time series of observations at a selected location. The one-dimensional data are read in as data structures via a mat file. The latter are stored in data structures in the format: ref.data, pred1.data, pred2.dat, and pred3.dat. The plot is written to a file in Portable Network Graphics (PNG) format.

The reference data used in this example are cell concentrations of a phytoplankton collected from cruise surveys at selected locations and time. The model predictions are from three different simulations that have been space-time interpolated to the location and time of the sample collection.