How to fill nodata gaps in raster using ArcGIS Desktop?
You should use Raster Calculator and there is a useful and relevant line of code from ESRI’s Support page HowTo: Remove and replace no data values within a raster using statistical information from the surrounding data values. From your question, it sounds like this would do exactly what you’re trying to do, but let me know if I’m wrong.
How to replace no data values in a raster?
The following Raster Calculator expression uses a conditional statement and focal statistics to replace no data values within a raster with a value statistically derived from neighboring cell values.
How are focal statistics calculated in ArcGIS for desktop?
See Analysis environments and Spatial Analyst for additional details on the geoprocessing environments that apply to this tool. The raster to perform the focal statistics calculations on. The Neighborhood class dictates the shape of the area around each cell used to calculate the statistic.
What does a nodata mean in a raster dataset?
NoData in raster datasets. Cell values can be either positive or negative, integer, or floating point. Cells can also have a NoData value to represent the absence of data. Sometimes there are homogeneous areas in a raster dataset that the you do not want to display.
When do you set a cell to nodata in ArcGIS?
In this example, any input cell with a value less than 0 will be set to NoData in the output raster, and the remaining cells will retain their original value. In this example, any input cell with a value other than 7 will be set to NoData, and cells that are 7 will be set to value 1 on the output.
How does SET NULL in ArcGIS Pro work?
Set Null sets identified cell locations to NoData based on a specified criteria. It returns NoData if a conditional evaluation is true, and returns the value specified by another raster if it is false. If the evaluation of the where clause is true, the cell location on the output raster will be assigned NoData.
Why does the output raster have nodata if no where is specified?
If no where clause is specified, the output raster will have NoData wherever the conditional raster is not 0. The input conditional raster does not affect whether the output data type is integer or floating point. If the input false raster (or constant value) contains floating-point values, the output raster will be floating point.