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Sum multiple Rasters

JustinBrandt

Hey folks,

silly question here, but I can't seem to find an easy answer. I'm using Arc 10.0...

I have several rasters that are a series of floating point values (several hundred thousand points) where each point is an elevation change over a period of time (i.e. raster1=timeA-timeB, raster2=timeB-timeC, etc...). Each raster has the same extent, and same number of points (in the same locations).

I want to sum these rasters together (i.e. rastersum=timeA-timeD). I can use the "Plus" feature in Spatial Analyst, but that only allows you to add two rasters at a time. Even doing a batch process with Plus is a multi-step process...

Is there a simpler way (i.e. non-python) that allows me to do this? I'm assuming there is, but I haven't stumbled upon it yet.

Thanks!

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Accepted answers

Luke_Pinner

Raster Calculator: "timeA"+"timeB"+"timeC"+"timeD"

All comments

Luke_Pinner

Raster Calculator: "timeA"+"timeB"+"timeC"+"timeD"

JustinBrandt

Raster Calculator: "timeA"+"timeB"+"timeC"+"timeD"

Thanks!

I knew it was something simple I was missing.

Had to search around for a bit, though, and finally found the function in Spatial Analyst --> Map Algebra

Seems like of a weird place for it to hide...

SteveLynch

I would use CellStatistics

Luke_Pinner

I would use CellStatistics

+1

I always forget this tool...

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