Interpolation
Interpolation is the process of using known data values to estimate unknown data values. Various interpolation techniques are often used in the atmospheric sciences. One of the simplest methods, linear interpolation, requires knowledge of two points and the constant rate of change between them. With this information, you may interpolate values anywhere between those two points. More sophisticated interpolations are also available in the Data Library. They are often applied to station datasets with irregular spacing between stations. The Cressman and Weaver analysis interpolation techniques are covered in this tutorial section. Both methods are primarily used to estimate equally-spaced latitude / longitude grid data from station data or gridded data with non-constant spacing.
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