/// <summary>Gets the value.</summary>
/// <value>The value.</value>
public double Value(int arrayIndex = -1)
{
if (arrayIndex == -1)
{
throw new Exception("Layer number must be provided to CERES mineralisation water factor Model");
}
double CNRF = Math.Exp(-0.693 * (nutrient.FOMCNR(arrayIndex) - 25) / 25);
return(MathUtilities.Bound(CNRF, 0, 1));
}