I have 2 raster datasets and I am trying to iterate through a "simple" raster calculation (Precipitation Grid + Residual Grid) for several hundred rasters.

I have created one Iterator model for the Residuals and used that as a sub model embedded in the main model which has an iterator for the Precipitation and the raster calculation. I've set parameters in my sub model so that I can call it in my main model and set the output name using inline variables to verify that the the model runs a one to one raster calculation but every way I've tried this it only adds the last raster in my sub-model to each iteration of the main model. I've tired a singular workspace using wild cards and variations of sub-model iterations all with no luck. I've also tried taking it back a step to a previous model where I created the precipitation grids and tried to embed an iterator sub-model there that adds the residual grid but also with no luck. I've attached my models but perhaps I am trying to go about this the wrong way...

HOW can I perform a one to one raster calculation for several hundred rasters?

Please, any help would be appreciated.

Thanks,

Melissa

I have created one Iterator model for the Residuals and used that as a sub model embedded in the main model which has an iterator for the Precipitation and the raster calculation. I've set parameters in my sub model so that I can call it in my main model and set the output name using inline variables to verify that the the model runs a one to one raster calculation but every way I've tried this it only adds the last raster in my sub-model to each iteration of the main model. I've tired a singular workspace using wild cards and variations of sub-model iterations all with no luck. I've also tried taking it back a step to a previous model where I created the precipitation grids and tried to embed an iterator sub-model there that adds the residual grid but also with no luck. I've attached my models but perhaps I am trying to go about this the wrong way...

HOW can I perform a one to one raster calculation for several hundred rasters?

Please, any help would be appreciated.

Thanks,

Melissa

http://resources.arcgis.com/en/help/main/10.1/index.html#/Examples_of_using_Model_Only_tools_in_ModelBuilder/00400000001m000000/GUID-9F197B15-27F6-46EA-BAC5-7A722C5A3C4E/