Which of the following is not true about the inverse distance weighted (IDW) method?
A) IDW tends to produce small, enclosed isolines.
B) The predicted values from IDW are always within the range of maximum and minimum values of the known points.
C) IDW is a local interpolation method.
D) None of these is correct

Question

Quizplus · Accepted Answer

IDW is characterized by producing values within the range of the known points (B is true), being a local interpolation method (C is true), and it does not inherently produce small, enclosed isolines, but rather smooth gradients that are influenced by the distance to known points (A is not a defining characteristic or limitation of IDW, but the statement "None of these is correct" (D) is the correct choice because the question asks for what is not true about IDW).

Which of the Following Is Not True About the Inverse