This is an article we recently published on "Renewable and Sustainable Energy Reviews". It starts with a thorough review of the methods used for wind resource assessment: from algorithms based on physical laws to other based on statistics, plus mixed methods.
In the second part of the manuscript we present a method for wind resource assessment based on the application of Random Forest, coded completely in R.
Elsevier allows to download the full paper for FREE until the 12th of February, so if you are interested please download a copy.
This is the link: http://authors.elsevier.com/a/1SG5a4s9HvhNZ6
Below is the abstract.