Apply mask to all members of a mosaic

[DanGoff]

I have a mosaic dataset that consists of daily gridded data showing wind speeds across the US. Each raster has the same spatial coverage; the mosaic operation only allows each raster to be served up and selectable based on a single day.

The primary method for accessing this data is using the Identify REST API endpoint in ArcGIS Server (currently 10.5.1). Is there a way to apply a mask to each raster when it is accessed, limiting the data returned to only return days above a specific wind speed, like 60 mph?

[CodyBenkelman]

Dan

Sorry for the delay in my response.

I'm pretty sure we can do this but I'd need to understand a bit more about what you're seeking.  Do you want to mask out individual pixels, such that those below threshold are blank (NoData), e.g. to display or quantify the # of cells with windspeed above threshold?   Is the client ArcGIS Pro, or a web map?  I assume the user will control the threshold?  

Cody B.