[Qgis-user] Interpolation analyses

[Thibaut Bouveroux]

Hi everyone,

I am trying to make an IDW interpolation analyses using salinity data in a bay. My values ranges between 0.1 to 13.1 PSU. When making my interpolation with 148 data points, the interpolation output ranges between 0.0034 to 12.40 and so doesn't fit 100% with the dataset. Can someone has na idea why? Using the same data set in ArcMap, the interpolation I made ranged between 0.1 and 13.1 and does fit 100% with my dataset.

Thanks a lot for your assistance,

Best,

Thibaut