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IDW interpolation of point rain data

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06-06-2019 08:33 AM
sofiasarchani
New Contributor

I have point-shapefile with meteorological stations counting daily rain of a specific precipitation event. I tried to interpolate the rain data applying the Inverse Distance Weighting, but I noticed that the output interpolated area resulted having as boundaries the locations of the stations. Is there any way to raise up the applicable interpolated area in order to have as boundaries the whole study area through IDW? I attach you the relevant photo. Thanks in advance.

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1 Reply
DanPatterson_Retired
MVP Emeritus

Set the Analysis Extent in the tool's Environments to the size you want (I presume the underlying vector layer's extent)

By default the Analysis Extent is set to the input dataset since you have specified otherwise.