Should I resample my maps before runing? AS my lulc map cell size10 and soil size cell size 221. As logically I have to resample my lulc to 221. But dont know how invest work. It will be great if anyone can suggest
Hi @Rahi -
It is not required that you resample your input rasters before using them in InVEST. As the User Guide Data Needs section says:
Note
Raster inputs may have different cell sizes, and they will be resampled to match the cell size of the land use/land cover raster. Therefore, raster model results will have the same cell size as the land use/land cover raster.
You are welcome to resample the soil map to 10m before running if you want to, but it is not required. I don’t typically resample the soil maps ahead of time, as they are generally very coarse to begin with. And i don’t recommend resampling the land cover map in particular, as it contains very important detail that we typically don’t want to lose or alter, which is why the model uses the land cover map as its base, and resamples the soil layer to it.
~ Stacie
And should remove the LULC noData value? or Invest do it itself?
No, do not remove the NoData value. It is required that all of the input rasters have a numeric NoData value. The model uses this NoData value to understand which pixels are “background” (generally outside of the study area, where you do not want the model to calculate) versus pixels that have valid data that should be calculated (inside the study area).
Make sure that the NoData value is numeric, and not something like “nan”. The Getting Started section of the User Guide provides more information about this.
~ Stacie