1. A computer-implemented method for modeling Spatially Correlated Variation (SCV) in a design of an Integrated Circuit (IC), the method comprising: generating a set of coefficient values for a position dependent SCV function, the set of coefficient values being selected from a set of random variables; obtaining a set of coordinates defining a position of each of a plurality of devices in a defined field; evaluating the position dependent SCV function to determine a device attribute variation for each of the plurality of devices based upon the coordinates of each of the plurality of devices; modifying at least one model parameter based upon the evaluation of the position dependent SCV function; and running a circuit simulation using the at least one modified model parameter.