How to filter out raster values and average overlapping buffer values

ZiyueXian — Mon, 09 Nov 2020 23:52:51 GMT

Hello,

I am currently dealing with a raster data with negative values but I want to remove them (aka I only want to keep values >=0). After that I need to map a csv file including thousands of poitns with longtitude/latitude information onto the raster data, and then I need to do a buffer of each point (buffer distance 2.5km). The buffer areas of each point will be overlapping since those points are really close to each other. The final result I want is to have a average buffer value corresponding to each data point, and then export them into a datafile (csv, etc.).

Any help is appreciated regarding removing negative values in raster data & averaging overlapping buffer values and exporting the data.

Thanks ahead!

Re: How to filter out raster values and average overlapping buffer values

DavidPike — Tue, 10 Nov 2020 13:27:56 GMT

Relassify the raster:

Understanding reclassification—ArcGIS Pro | Documentation

Add xy data (turn the csv to feature points)

Add x,y coordinate data as a layer—ArcGIS Pro | Documentation

Buffer the points by 2.5km:

Buffer (Analysis)—ArcGIS Pro | Documentation

Zonal stats (get stats from underlying raster where intersects each buffer 'zone'):

Zonal Statistics (Spatial Analyst)—ArcGIS Pro | Documentation

topic Re: How to filter out raster values and average overlapping buffer values in Esri Tutorials Questions

How to filter out raster values and average overlapping buffer values

Re: How to filter out raster values and average overlapping buffer values